BMC WEST CORP
424B1, 1996-06-13
LUMBER & OTHER BUILDING MATERIALS DEALERS
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<PAGE>
   
                                                FILED PURSUANT TO RULE 424(B)(1)
    
                                                      REGISTRATION NO. 333-03743
   
                                2,000,000 SHARES
    
 
                                     [LOGO]
 
                                  COMMON STOCK
 
   
    The  2,000,000  shares of  common  stock, par  value  $0.001 per  share (the
"Common Stock"), offered hereby (the "Offering")  are being offered by BMC  West
Corporation  ("BMC West" or  the "Company"). The  Common Stock is  quoted on the
Nasdaq National Market ("Nasdaq") under the symbol "BMCW." On June 12, 1996, the
last reported sales  price of the  Common Stock on  the Nasdaq was  $18 3/4  per
share. See "Price Range of Common Stock and Dividend Policy."
    
 
    FOR  A DISCUSSION OF CERTAIN RISKS OF  AN INVESTMENT IN THE SHARES OF COMMON
STOCK OFFERED HEREBY, SEE "RISK FACTORS" ON PAGES 6 TO 7.
                               -----------------
THESE   SECURITIES   HAVE   NOT   BEEN   APPROVED   OR   DISAPPROVED   BY    THE
   SECURITIES    AND   EXCHANGE   COMMISSION    OR   ANY   STATE   SECURITIES
     COMMISSION  NOR  HAS  THE   SECURITIES  AND  EXCHANGE  COMMISSION   OR
       ANY   STATE  SECURITIES   COMMISSION  PASSED   UPON  THE  ACCURACY
           OR  ADEQUACY  OF   THIS  PROSPECTUS.  ANY   REPRESENTATION
                       TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
                              -------------------
 
   
<TABLE>
<CAPTION>
                                                                   UNDERWRITING
                                           PRICE TO               DISCOUNTS AND              PROCEEDS TO
                                            PUBLIC                 COMMISSIONS*                COMPANY+
<S>                                <C>                       <C>                       <C>
Per Share........................           $18.00                    $1.08                     $16.92
Total++..........................        $36,000,000                $2,160,000               $33,840,000
</TABLE>
    
 
- ------------
 *  The  Company  has  agreed  to  indemnify  the  Underwriters  against certain
    liabilities, including  liabilities under  the Securities  Act of  1933,  as
    amended. See "Underwriting."
 
 + Before deducting expenses of the Offering payable by the Company estimated to
    be $260,000.
 
   
 ++  The Company has granted the Underwriters  a 30-day option to purchase up to
    300,000 additional shares of Common Stock on the same terms per share solely
    to cover over-allotments, if any. If  such option is exercised in full,  the
    total  price to public will be $41,400,000, the total underwriting discounts
    and commissions will be $2,484,000 and the total proceeds to Company will be
    $38,916,000. See "Underwriting."
    
                              -------------------
 
   
    The Common Stock  is being offered  by the Underwriters  as set forth  under
"Underwriting" herein. It is expected that the delivery of certificates therefor
will be made at the offices of Dillon, Read & Co. Inc., New York, New York on or
about June 18, 1996. The Underwriters include:
    
 
DILLON, READ & CO. INC.                                       PIPER JAFFRAY INC.
 
   
                  The date of this Prospectus is June 12, 1996
    
<PAGE>
                        BMC WEST'S 12-STATE MARKET AREA
 
    [Map shows an outline of the states of Arizona, California, Colorado, Idaho,
Montana,  Nevada, New Mexico, Oregon, Texas,  Utah, Washington and Wyoming. Dots
indicate the  locations of  BMC West's  52 building  materials centers  and  its
corporate headquarters. Certain major cities are shown on the map.]
 
    BMC West Corporation is a leading regional distributor of building materials
to  professional  contractors  and  advanced,  service-oriented  consumers.  The
Company is one of the largest building materials center operators in the western
United States, with 52  centers in 10  western states. BMC  West's net sales  in
1995 were $630.2 million.
                              -------------------
 
    IN  CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK OF
THE COMPANY AT  A LEVEL ABOVE  THAT WHICH  MIGHT OTHERWISE PREVAIL  IN THE  OPEN
MARKET.  SUCH TRANSACTIONS  MAY BE  EFFECTED ON  THE OVER-THE-COUNTER  MARKET OR
OTHERWISE. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
    IN CONNECTION WITH THIS OFFERING, CERTAIN UNDERWRITERS MAY ENGAGE IN PASSIVE
MARKET MAKING TRANSACTIONS IN THE COMMON STOCK  OF THE COMPANY ON THE NASDAQ  IN
ACCORDANCE  WITH  RULE 10B-6A  UNDER THE  SECURITIES EXCHANGE  ACT OF  1934. SEE
"UNDERWRITING."
 
                                       2
<PAGE>
                               PROSPECTUS SUMMARY
 
    THE  FOLLOWING SUMMARY SHOULD BE READ  IN CONJUNCTION WITH, AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO, THE MORE DETAILED INFORMATION AND THE FINANCIAL
STATEMENTS AND  THE NOTES  THERETO APPEARING  ELSEWHERE IN  THIS PROSPECTUS  AND
OTHER  INFORMATION  INCORPORATED  BY REFERENCE  HEREIN.  EXCEPT  WHERE OTHERWISE
INDICATED, ALL INFORMATION IN THIS PROSPECTUS  RELATING TO THE OFFERING AND  THE
PROCEEDS  THEREFROM ASSUMES THAT THE  UNDERWRITERS' OVER-ALLOTMENT OPTION IS NOT
EXERCISED. BMC WEST  AND BMC  ARE REGISTERED  TRADENAMES OF  THE COMPANY.  OTHER
BRAND NAMES OR TRADEMARKS APPEARING IN THIS PROSPECTUS ARE THE PROPERTY OF THEIR
RESPECTIVE HOLDERS.
 
                                  THE COMPANY
 
    BMC  West Corporation  ("BMC West" or  the "Company") is  a leading regional
distributor  of  building  materials  in  the  western  United  States,  selling
primarily  to professional contractors as  well as to advanced, service-oriented
consumers. In addition to distributing lumber, panel products and other building
supplies from manufacturers, the Company conducts value-added activities,  which
include  pre-hanging doors, fabricating roof trusses, pre-assembling windows and
pre-cutting lumber  to meet  customer specifications.  The Company  operates  52
building  materials  centers located  in  Arizona, California,  Colorado, Idaho,
Montana, Nevada, Oregon, Texas, Utah and Washington. Value-added activities  are
conducted  at  40 separate  facilities, most  of which  are located  at building
materials center sites.
 
    BMC West targets primarily  the professional contractor  market, which is  a
strategy  distinct from that pursued  by the high-volume, consumer-oriented home
center  retailers  now  found  throughout  the  United  States.  The   Company's
professional  contractor market consists  of persons engaged  principally in the
construction of single-family homes and, to a lesser extent, multi-family  units
and  light commercial and industrial construction.  The Company also targets the
repair and remodel market which consists generally of advanced, service-oriented
consumers and contractors  hired by  them, who engage  primarily in  substantial
projects  such as  room additions, kitchen  or bathroom remodeling  and fence or
deck installations. The  Company believes  that many of  its building  materials
centers  hold  a first  or second  place local  market share  among professional
contractors and that the Company,  as a whole, has  the largest sales volume  of
any distributor of building materials serving primarily professional contractors
in its 12-state market area.
 
    Professional  contractors  generally  are  large-volume,  repeat  customers,
requiring certainty  of  product  availability  and delivery  and  a  number  of
specialized  services typically not  offered by home  center retailers. BMC West
develops long-term relationships  with its  customers by providing  them with  a
broad  range  of  high-quality  products and  services.  Each  of  the Company's
building materials  centers tailors  its product  and service  mix to  meet  the
demands of its local market. The Company's products, which include lumber, panel
products,   roofing  materials,  pre-hung  doors,  roof  trusses,  pre-assembled
windows, cabinets,  hardware,  paint  and  tools, are  used  primarily  for  new
residential   construction,  light   commercial  construction   and  repair  and
remodeling projects.  These  products  are  sold  by  experienced  professionals
consisting  of both field  sales personnel and  facility-based sales and support
personnel. The Company  also offers  its customers  various services,  including
assistance  with project  designs and materials  specifications, coordination of
delivery of orders to job sites, provision of credit to pre-approved contractors
and referral of  retail customers  to pre-qualified  contractors. Complete  home
packages (delivered to the sites of the Company's builder customers according to
their  construction schedules)  account for a  significant amount  of BMC West's
total sales. Professional contractors accounted for approximately 75% to 79%  of
the Company's net sales in each of the last three years.
 
    The  Company  believes  that it  is  well  positioned in  some  of  the most
attractive markets for building materials  in the United States. Population  and
migration  trends in  the markets served  by BMC  West, as well  as the relative
strength of many of the local economies in the regions it serves, have  resulted
in  the growth of residential housing in  these markets at rates faster than the
United States as a whole. BMC West operates  centers in 7 of the top 10  fastest
growing  states over the last  five years, based upon  U.S. Bureau of the Census
estimates. In  addition,  according  to  the U.S.  Bureau  of  the  Census,  the
Company's 12-state market area is forecast to outpace the rest of the country in
its  rate of population growth between 1995  and 2000. The Company believes that
these population and migration trends provide a foundation for continued growth.
Furthermore, BMC West's  52 building  materials centers operate  in 18  distinct
regional   markets,  which  collectively   have  a  diverse   economic  base  of
manufacturing, agricultural,  recreational  and  service-based  industries.  The
Company  believes that this geographic diversification lessens the impact on the
Company of a downturn in any one of its regional markets.
 
                                       3
<PAGE>
    BMC West traces its roots through various predecessor companies to 1915. The
Company was formed  in 1987  through the  acquisition of  20 building  materials
centers  from  Boise Cascade  Corporation  and has  since  grown to  52 centers,
predominantly through acquisitions. The key elements of BMC West's strategy  for
growth, expansion and profit improvement include:
 
    - strengthening  its leadership position in  the growing regional markets in
      which the Company presently operates;
 
    - acquiring additional  building  materials  centers  in  new  and  existing
      markets in the western United States;
 
    - increasing  emphasis  on  the  development  and  expansion  of value-added
      operations;
 
    - refining its organizational structure, management information and computer
      systems, cost  reduction  techniques,  purchasing  expertise  and  working
      capital management; and
 
    - enhancing  and expanding  its product  line and  services for professional
      contractors and advanced, service-oriented consumers.
 
    BMC West continues to  seek acquisitions of  building materials centers  and
value-added   facilities  that  serve  professional  contractors  and  advanced,
service-oriented consumers in  new and  existing markets in  the western  United
States.  Typically, after an  acquisition of a center,  the Company enhances the
center's sales  and  service capabilities  and  expands its  product  offerings,
including value-added products, in an effort to increase sales. In addition, the
Company  seeks to implement its accounting  and management systems in each newly
acquired center.  These  systems  assist  in the  effective  management  of  the
Company's inventories and accounts receivable and in efforts to improve customer
service.  BMC West generally is able to use its centralized purchasing expertise
to reduce product costs  following acquisitions. The  Company believes that  the
fragmented   nature  of  its  industry  presents  opportunities  for  additional
acquisitions of strategically located building materials centers and value-added
facilities.
 
    The management of BMC West has substantial experience in expanding  building
materials  supply businesses through acquisitions.  BMC West's senior management
team has worked together  for over 18 years  and has an average  of 27 years  of
experience  with the  Company and  its predecessors.  This depth  and breadth of
experience extends to the Company's building materials center managers who  have
an average of approximately 20 years of industry experience.
 
    As  a result of  the Company's operating and  acquisition strategy, over the
last five years BMC West's net sales have increased from $218.8 million in  1991
to  $630.2 million in 1995, representing a compound annual growth rate of 30.3%.
Over the same period, income from operations has grown at a compound annual rate
of 38.8% from $6.3 million in 1991 to $23.4 million in 1995.
 
    The Company was incorporated  in Delaware in  1987. The Company's  executive
offices  are located at 1475 Tyrell Lane,  Boise, Idaho 83706, and its telephone
number is (208) 331-4410.
 
                                  THE OFFERING
 
<TABLE>
<S>                               <C>
Common Stock offered............  2,000,000 shares (1)
Common Stock to be outstanding
 after the Offering.............  11,492,983 shares (1)(2)
Use of proceeds.................  To repay indebtedness including  (i) all of the  Company's
                                  10%  Senior Subordinated Notes due 1999 (the "Subordinated
                                  Notes") and (ii) a  portion of the borrowings  outstanding
                                  under  the  Company's  revolving  credit  agreement. After
                                  completion  of  this  Offering,  the  Company  intends  to
                                  re-borrow   under  its   revolving  credit   agreement  as
                                  necessary from time to time  to fund acquisitions and  for
                                  other  general corporate  purposes. See  "Use of Proceeds"
                                  and "Capitalization."
Nasdaq National Market symbol...  BMCW
</TABLE>
 
- ------------------------
(1) Assumes that the Underwriters' over-allotment option is not exercised.
 
(2) Represents the number of shares of Common Stock outstanding at May 7,  1996,
    as  adjusted  to  give  effect to  this  Offering.  Excludes  620,507 shares
    reserved for issuance pursuant to options granted under the Company's  stock
    option plans as of May 7, 1996.
 
                                       4
<PAGE>
                      SUMMARY FINANCIAL AND OPERATING DATA
              (IN THOUSANDS, EXCEPT PER SHARE AND OPERATING DATA)
 
<TABLE>
<CAPTION>
                                                                                                    THREE MONTHS ENDED MARCH
                                                   FISCAL YEARS ENDED DECEMBER(1)                             31,
                                  ----------------------------------------------------------------  ------------------------
                                     1991          1992         1993         1994         1995         1995         1996
                                  -----------  ------------  -----------  -----------  -----------  -----------  -----------
<S>                               <C>          <C>           <C>          <C>          <C>          <C>          <C>
STATEMENT OF INCOME DATA:
Net sales.......................  $  218,768   $   290,957   $  399,597   $  547,109   $  630,201   $  120,519   $  147,599
Gross profit....................      46,548        60,120       83,904      119,158      138,173       27,237       33,084
Income from operations..........       6,294         9,868       19,233       29,484       23,421        2,786        4,195
Net income......................         837         2,616(2)      8,791      14,259        7,765          504          750
Net income per share............  $     0.21   $      0.45(2) $     1.14  $     1.62   $     0.79   $     0.05   $     0.08
Weighted average number of
 common and common equivalent
 shares outstanding.............       3,854         5,701        7,708        8,798        9,752        9,702        9,755
 
SELECTED OPERATING DATA:
Number of centers at end of
 period.........................          30            32           39           49           52           50           52
Number of value-added facilities
 at end of period...............          16            15           23           32           38           35           39
Same-store sales(3)--percent
 increase (decrease) period to
 period:
  Including price inflation/
   deflation....................           0%           26%          28%          11%          (8)%        (14)%          3%
  Excluding price inflation/
   deflation....................         n/a            16%          14%           8%          (1)%         (4)%          7%
</TABLE>
 
   
<TABLE>
<CAPTION>
                                                                                              MARCH 31, 1996
                                                                                        --------------------------
                                                                                         ACTUAL    AS ADJUSTED(4)
                                                                                        ---------  ---------------
<S>                                                                                     <C>        <C>
BALANCE SHEET DATA:
Working capital.......................................................................  $ 107,689      $107,689
Total assets..........................................................................    275,002       274,644(5)
Long-term debt (net of current portion)...............................................    127,850        94,270
Redeemable preferred stock (net of current redemption requirement)....................        968           968
Stockholders' equity..................................................................     96,725       129,947(5)
Long-term debt as a percentage of total capitalization(6).............................       56.7%         41.9%
</TABLE>
    
 
- --------------------------
(1)  To facilitate industry  comparisons, the Company elected  in 1994 to change
    its fiscal year-end from December 28 to December 31.
 
(2) After an extraordinary charge of $956,000, or $0.17 per share, arising  from
    the early retirement of debt.
 
(3) Includes centers and value-added facilities that operated for more than nine
    months  of the relevant years or two months of the relevant quarters. "Price
    inflation/deflation" refers to the effect on sales primarily attributable to
    changes in  commodity  wood product  prices.  See "Risk  Factors--Prices  of
    Commodity Wood Products."
 
   
(4) Adjusted to reflect the sale of the 2,000,000 shares of Common Stock offered
    hereby  and the application of the estimated net proceeds of the Offering as
    described in "Use of Proceeds,"  after deducting underwriting discounts  and
    commissions and estimated offering expenses.
    
 
(5)   Includes  after-tax   effect  of  extraordinary,   non-cash  write-off  of
    unamortized loan costs, in the amount of approximately $358,000,  associated
    with repayment of the Subordinated Notes. See "Use of Proceeds."
 
(6)  Total capitalization consists  of long-term debt  (net of current portion),
    redeemable preferred  stock  (net  of current  redemption  requirement)  and
    stockholders' equity.
 
                                       5
<PAGE>
                                  RISK FACTORS
 
    IN   ADDITION  TO  THE  OTHER  INFORMATION  CONTAINED  IN  THIS  PROSPECTUS,
PROSPECTIVE  INVESTORS  SHOULD  CONSIDER  CAREFULLY  THE  FOLLOWING  FACTORS  IN
EVALUATING  THE COMPANY  AND ITS  BUSINESS BEFORE  PURCHASING ANY  SHARES OF THE
COMMON STOCK OFFERED HEREBY.
 
INDUSTRY CONDITIONS; CYCLICALITY; SEASONALITY
 
    The building materials industry historically has been subject to substantial
cyclical variation, and adverse  economic changes in the  regions served by  the
Company  could  have  a  material  adverse  effect  on  the  Company's financial
condition. The Company's operations have reflected substantial fluctuations from
period to period as a consequence of various factors, including general economic
conditions, prices of commodity wood  products, levels of building activity  and
interest  rates,  single-family  housing  starts,  employment  levels,  consumer
confidence  and  availability   of  credit  to   professional  contractors   and
homeowners.  Because  a substantial  percentage of  the  Company's net  sales is
attributable  to  professional  contractors,  these  factors  may  have  a  more
significant  impact on the Company than on companies focused on a broad range of
retail customers. See "Business--Industry Overview."
 
    In addition,  although  weather patterns  affect  the Company's  results  of
operations  throughout  the  year,  adverse  weather  historically  has  reduced
construction activity in the first and fourth quarters in the Company's markets.
The Company anticipates that fluctuations from period to period will continue in
the future. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations -- Quarterly Results and Seasonality."
 
ACQUISITION AND DEVELOPMENT STRATEGY
 
    The Company's objective is to continue to acquire building materials centers
and to acquire or develop value-added  facilities in the western United  States.
Accomplishing  this expansion goal will depend on a number of factors, including
the Company's  ability to  identify and  acquire acceptable  building  materials
centers  and acquire or develop value-added facilities, hire and train competent
managers, integrate new acquisitions into the Company's operations, successfully
implement cost reduction and working capital management systems, generate  funds
from  operations and continue to access external sources of financing. There can
be no  assurance that  the Company  will be  able to  continue to  identify  and
complete successful acquisitions. The process of integrating acquired businesses
may   be  prolonged   due  to   unforeseen  difficulties   and  may   require  a
disproportionate amount of resources and management's attention. There can be no
assurance that the  integration, implementation and  expansion of the  Company's
cost  reduction and working capital and other management information and control
systems will keep  pace with the  Company's growth. Future  acquisitions may  be
financed  through the incurrence  of additional indebtedness  or the issuance of
equity securities, which may dilute the Company's stockholders. See  "Business--
Acquisition Strategy."
 
RELIANCE ON KEY PERSONNEL; MANAGEMENT OF GROWTH
 
    The members of the Company's senior management team have worked together for
over  18 years, have an average of 27  years experience with the Company and its
predecessors and have  been a  significant factor  in the  Company's success  to
date.  The Company does not  have employment agreements with  any members of its
management team (other than agreements with respect to termination in the  event
of  a change of  control of the  Company). The Company  believes that its future
success, including the skillful management of the Company's growth, will  depend
on  its ability  to retain key  members of  its management team  and to attract,
train and retain general managers in the future. There can be no assurance  that
the  Company  will  be  able to  do  so.  A failure  to  retain,  acquire and/or
adequately train  managerial  employees  sufficient to  manage  effectively  the
Company's  operations and growth could result in organizational deficiencies and
a material adverse impact on the Company. See "Management."
 
PRICES OF COMMODITY WOOD PRODUCTS
 
    Historically, approximately 50% of the Company's sales has been attributable
to commodity wood products, including  lumber and panel products.  Approximately
47%  of the Company's sales in 1995 was attributable to commodity wood products.
Prices of  commodity wood  products are  subject to  significant volatility  and
directly  affect the Company's sales. During  1995, the prices of commodity wood
products purchased and sold  by the Company  were on average  14% lower than  in
1994,   which  reduced  the  rate  of  increase  of  both  the  Company's  sales
 
                                       6
<PAGE>
and gross profit and  increased costs as  a percentage of  sales as the  Company
shipped  more product per dollar of sales.  Declines in commodity wood prices in
the future may have  an adverse effect on  the Company's results of  operations.
See "Business--Products."
 
COMPETITION
 
    BMC West operates in a highly competitive environment. The Company's centers
compete primarily with privately owned, single-site enterprises as well as local
and  regional building materials  chains. To a lesser  extent, in certain larger
markets the Company also  competes with national  building materials chains  and
large  home center retailers.  Some of these  large retailers have substantially
greater resources than the Company. Although home center retailers  historically
have  focused their sales efforts  on consumers, there can  be no assurance that
they will not intensify their  marketing efforts to professional contractors  in
the  future. Home  center retailers may  indirectly increase  competition in the
professional contractor market by prompting smaller local retailers of  building
materials to increase their focus on this market. See "Business--Competition."
 
CERTAIN ANTI-TAKEOVER EFFECTS
 
    Certain provisions of the Company's Certificate of Incorporation and Bylaws,
as well as Delaware corporate law and the Company's Stockholder Rights Plan (the
"Rights Plan"), may be deemed to have anti-takeover effects and may delay, defer
or  prevent a  takeover attempt  that a stockholder  might consider  in its best
interest. Such provisions also may adversely affect prevailing market prices for
the Company's Common Stock. Certain of such provisions allow the Company's Board
of Directors to issue, without additional stockholder approval, preferred  stock
having  rights  senior to  those of  the Common  Stock. Other  provisions impose
various procedural and other requirements that could make it more difficult  for
stockholders  to effect certain  corporate actions. In  addition, the Company is
subject to the anti-takeover provisions of  Section 203 of the Delaware  General
Corporation  Law,  which  prohibits the  Company  from engaging  in  a "business
combination" with an "interested stockholder" for a period of three years  after
the   date  of  the  transaction  in  which  the  person  became  an  interested
stockholder, unless the business combination is approved in a prescribed manner.
In July 1993, BMC West adopted the Rights Plan, pursuant to which holders of the
Common Stock received a distribution of rights to purchase additional shares  of
Common  Stock, which  rights become exercisable  upon the  occurrence of certain
events. The Rights Plan has certain anti-takeover effects.
 
RESTRICTIONS ON PAYMENTS OF DIVIDENDS
 
    The Company has never  paid cash dividends  on its Common  Stock and has  no
current  plans to  pay any  such dividends  in the  future. Agreements governing
certain of  the  Company's indebtedness  contain  provisions that  restrict  the
Company's  ability to pay dividends. There can  be no assurance as to the amount
of funds, if  any, that will  be available  for the declaration  and payment  of
dividends in the future.
 
                                       7
<PAGE>
                                USE OF PROCEEDS
 
   
    The  net proceeds to  the Company from  the sale of  the 2,000,000 shares of
Common Stock  offered  hereby, after  deduction  of underwriting  discounts  and
commissions and offering expenses, are estimated to be approximately $33,580,000
(approximately  $38,656,000,  if  the  Underwriters'  over-allotment  option  is
exercised in full).
    
 
    The Company intends to use approximately  $20.0 million of the net  proceeds
of this Offering to redeem all of the Subordinated Notes. The Company intends to
use  the remainder of  the net proceeds to  pay down a  portion of the Company's
outstanding indebtedness  under the  Company's revolving  credit agreement  (the
"Credit  Agreement") with Wells Fargo  Bank, N.A. and West  One Bank, Idaho. All
indebtedness under the Credit Agreement bears interest, at the Company's option,
at prime to  prime plus  0.25% or  LIBOR plus  0.625% to  1.625%. The  effective
annual  interest rate  on indebtedness  under the  Credit Agreement  was 7.4% at
March 31,  1996.  See  Note  3  of Notes  to  the  Financial  Statements.  After
completion  of this Offering, the Company  intends to re-borrow under the Credit
Agreement as necessary  from time  to time to  fund acquisitions  and for  other
general  corporate  purposes.  Pending  the uses  described  above,  the Company
intends  to   invest  such   net  proceeds   in  short-term,   investment-grade,
interest-bearing securities.
 
                                 CAPITALIZATION
 
   
    The following table sets forth the capitalization of the Company as of March
31,  1996 and  as adjusted  to give  effect to  the sale  by the  Company of the
2,000,000 shares  of Common  Stock offered  hereby and  the application  of  the
proceeds  therefrom  as  described  under  "Use  of  Proceeds,"  after deducting
estimated underwriting  discounts and  commissions and  offering expenses.  This
table  should  be  read in  conjunction  with  the financial  statements  of the
Company, including  the  related  notes  thereto,  included  elsewhere  in  this
Prospectus.
    
 
   
<TABLE>
<CAPTION>
                                                                                       MARCH 31, 1996
                                                                                  ------------------------
                                                                                    ACTUAL    AS ADJUSTED
                                                                                  ----------  ------------
                                                                                       (IN THOUSANDS)
<S>                                                                               <C>         <C>
Short-term debt:
  Current portion of long-term debt.............................................  $       96   $       96
  Current redemption requirement on Redeemable Preferred Stock..................       1,000        1,000
                                                                                  ----------  ------------
    Total short-term debt.......................................................  $    1,096   $    1,096
                                                                                  ----------  ------------
                                                                                  ----------  ------------
Long-term debt (net of current portion):(1)
  Revolving credit agreement....................................................  $   32,850   $   19,270
  9.18% unsecured senior notes..................................................      50,000       50,000
  8.10% unsecured senior notes..................................................      25,000       25,000
  10% unsecured senior subordinated notes.......................................      20,000           --
                                                                                  ----------  ------------
    Total long-term debt........................................................     127,850       94,270
                                                                                  ----------  ------------
Redeemable Preferred Stock (net of current redemption requirement)(1)...........         968          968
Stockholders' equity:
  Common Stock, $0.001 par value, 20,000,000 shares authorized;
   9,491,183 shares issued and outstanding; 11,491,183 shares
   issued and outstanding as adjusted(2)........................................           9           11
  Additional paid-in capital....................................................      59,242       92,820
  Retained earnings.............................................................      37,474       37,116(3)
                                                                                  ----------  ------------
    Total stockholders' equity..................................................      96,725      129,947
                                                                                  ----------  ------------
      Total capitalization......................................................  $  225,543   $  225,185
                                                                                  ----------  ------------
                                                                                  ----------  ------------
</TABLE>
    
 
- ------------------------
(1)  See Notes 3 and 4 of Notes to the Financial Statements for a description of
    the Company's long-term debt and Redeemable Preferred Stock.
 
(2) Excludes 529,952 shares  of Common Stock reserved  for issuance pursuant  to
    options  granted under the Company's stock option plans. See Note 6 of Notes
    to the Financial Statements.
 
(3)  Includes  after-tax   effect  of  extraordinary,   non-cash  write-off   of
    unamortized  loan costs, in the amount of approximately $358,000, associated
    with repayment of 10% unsecured senior subordinated notes.
 
                                       8
<PAGE>
                PRICE RANGE OF COMMON STOCK AND DIVIDEND POLICY
 
    The Common Stock of BMC West has traded on the Nasdaq National Market  under
the  symbol "BMCW" since  the Company's initial public  stock offering in August
1991. The following table sets  forth the high and  low closing sales prices  of
the  Common Stock for the periods indicated,  as reported by the Nasdaq National
Market. Such  quotations represent  inter-dealer prices  without retail  markup,
markdown or commission and may not necessarily represent actual transactions.
 
   
<TABLE>
<CAPTION>
                                                                      HIGH        LOW
                                                                    ---------  ---------
<S>                                                                 <C>        <C>
FISCAL 1994
  First Quarter...................................................  $29 1/8    $18 1/6
  Second Quarter..................................................  30         19 3/4
  Third Quarter...................................................  26         14 3/4
  Fourth Quarter..................................................  19         12 3/4
FISCAL 1995
  First Quarter...................................................  15 1/4     11 5/16
  Second Quarter..................................................  17         13 1/2
  Third Quarter...................................................  15 1/2     14
  Fourth Quarter..................................................  14 3/4     12 1/4
FISCAL 1996
  First Quarter...................................................  16 1/4     13
  Second Quarter (through June 12, 1996)..........................  21         15 1/4
</TABLE>
    
 
   
    The Company has never paid cash dividends on its Common Stock, and the Board
of  Directors  presently intends  to  continue this  policy  in order  to retain
earnings for use in the Company's business. Agreements governing certain of  the
Company's indebtedness contain provisions that restrict the Company's ability to
pay  dividends.  At March  11,  1996, the  Company's  Common Stock  was  held by
approximately 7,808 stockholders  of record  or through nominee  or street  name
accounts  with brokers  (233 registered holders).  The last sales  price for BMC
West's Common Stock, as reported by Nasdaq on June 12, 1996, was $18 3/4.
    
 
    All per  share  amounts,  weighted  average  number  of  common  and  common
equivalent  shares and  stock prices  presented in  this Prospectus  reflect the
effect of a three-for-two stock split effected in the first quarter of 1994.
 
                     SELECTED FINANCIAL AND OPERATING DATA
 
    The following selected  financial data  for the  Company should  be read  in
conjunction  with the financial  statements and notes  thereto and "Management's
Discussion and  Analysis  of  Financial Condition  and  Results  of  Operations"
included  elsewhere in  this Prospectus.  The statement  of income  data for the
1993, 1994 and 1995 fiscal years and the balance sheet data at the end of fiscal
years 1994 and 1995  are derived from the  financial statements of the  Company,
audited  by Arthur Andersen  LLP, independent accountants,  which statements are
included elsewhere in this Prospectus. The statement of income data for the 1991
and 1992 fiscal  years and the  balance sheet data  at the end  of fiscal  years
1991,  1992  and  1993 are  derived  from  audited financial  statements  of the
Company, which have been audited by Arthur Andersen LLP, but are not included in
this Prospectus or incorporated by reference. The unaudited statement of  income
data  for  the three  months  ended March  31, 1995  and  1996 and  the selected
unaudited balance sheet data as of March 31, 1995 and 1996 are derived from  the
Company's  books and records and include all  adjustments (all of which are of a
normal recurring nature)  which are,  in the opinion  of management,  considered
necessary  to present  fairly the  Company's financial  position and  results of
operations for  the periods  presented. The  operating results  for any  interim
period  are not necessarily indicative  of results for an  entire fiscal year or
for future  periods.  During  1993,  the  Company  dissolved  its  wholly  owned
subsidiary  and merged all  of the subsidiary's assets  and liabilities into the
Company's accounts. The financial statements  for all periods presented  include
the accounts of the Company and its subsidiary to date of dissolution.
 
                                       9
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                             THREE MONTHS ENDED
                                                FISCAL YEAR ENDED DECEMBER (1)                   MARCH 31,
                                     -----------------------------------------------------  --------------------
                                       1991       1992       1993       1994       1995       1995       1996
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                 (IN THOUSANDS, EXCEPT PER SHARE AND OPERATING DATA)
<S>                                  <C>        <C>        <C>        <C>        <C>        <C>        <C>
STATEMENT OF INCOME DATA:
  Net sales........................  $ 218,768  $ 290,957  $ 399,597  $ 547,109  $ 630,201  $ 120,519  $ 147,599
  Cost of sales....................    172,220    230,837    315,693    427,951    492,028     93,282    114,515
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Gross profit.....................     46,548     60,120     83,904    119,158    138,173     27,237     33,084
  Selling, general and
   administrative expense..........     41,269     50,688     65,619     91,203    116,353     24,767     29,626
  Other income, net................      1,015        436        948      1,529      1,601        316        737
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Income from operations...........      6,294      9,868     19,233     29,484     23,421      2,786      4,195
  Interest expense.................      5,342      4,948      4,554      6,486     10,746      1,959      2,956
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Income before income taxes.......        952      4,920     14,679     22,998     12,675        827      1,239
  Income taxes.....................        115      1,348      5,888      8,739      4,910        323        489
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Income before extraordinary
   item............................        837      3,572      8,791     14,259      7,765        504        750
  Extraordinary item (2)...........         --       (956)        --         --         --         --         --
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Net income.......................  $     837  $   2,616  $   8,791  $  14,259  $   7,765  $     504  $     750
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Net income per share before
   extraordinary item..............  $    0.21  $    0.62  $    1.14  $    1.62  $    0.79  $    0.05  $    0.08
  Extraordinary item (2)...........         --      (0.17)        --         --         --         --         --
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Net income per share.............  $    0.21  $    0.45  $    1.14  $    1.62  $    0.79  $    0.05  $    0.08
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Weighted average number of common
   and common equivalent shares
   outstanding.....................      3,854      5,701      7,708      8,798      9,752      9,702      9,755
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                     ---------  ---------  ---------  ---------  ---------  ---------  ---------
 
SELECTED OPERATING DATA:
  Number of centers at end of
   period..........................         30         32         39         49         52         50         52
  Number of value-added facilities
   at end of period................         16         15         23         32         38         35         39
  Same-store sales (3)--percent
   increase (decrease) period to
   period:
    Including price inflation/
     deflation.....................          0%        25%        28%        11%        (8)%       (14)%         3%
    Excluding price inflation/
     deflation.....................        n/a         16%        14%         8%        (1)%        (4)%         7%
 
BALANCE SHEET DATA
 (AT PERIOD END (1)):
  Working capital..................  $  30,130  $  38,899  $  60,321  $  76,201  $ 100,196  $  88,147  $ 107,689
  Total assets.....................     73,489     92,021    142,297    222,450    264,970    235,425    275,002
  Long-term debt (net of current
   portion)........................     32,901     32,343     53,276     76,411    121,120     95,160    127,850
  Redeemable preferred stock (net
   of current redemption
   requirement)....................      4,824      4,858      3,892      2,925      1,960      1,931        968
  Stockholders' equity.............     19,600     33,899     49,510     87,002     95,927     87,232     96,725
  Long-term debt as a percentage of
   total capitalization (4)........       57.4%      45.5%      49.9%      45.9%      55.3%      51.6%      56.7%
</TABLE>
 
- --------------------------
(1)  To facilitate industry  comparisons, the Company elected  in 1994 to change
    its fiscal year-end from December 28 to December 31.
 
(2) Extraordinary charge arising from the early retirement of debt.
 
(3) Includes centers and value-added facilities that operated for more than nine
    months of the relevant years or two months of the relevant quarters.  "Price
    inflation/deflation" refers to the effect on sales primarily attributable to
    changes  in  commodity wood  product  prices. See  "Risk  Factors--Prices of
    Commodity Wood Products."
 
(4) Total capitalization consists  of long-term debt  (net of current  portion),
    redeemable  preferred  stock  (net of  current  redemption  requirement) and
    stockholders' equity.
 
                                       10
<PAGE>
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
OPERATING RESULTS
 
    The following table  sets forth  for the periods  indicated, the  percentage
relationship to net sales of certain costs, expenses and income items. The table
and  subsequent  discussion should  be read  in  conjunction with  the financial
statements and the notes thereto appearing elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                                                               THREE MONTHS
                                                         FISCAL YEARS ENDED DECEMBER         ENDED MARCH 31,
                                                      ----------------------------------  ----------------------
                                                         1993        1994        1995        1995        1996
                                                      ----------  ----------  ----------  ----------  ----------
<S>                                                   <C>         <C>         <C>         <C>         <C>
Net sales...........................................      100.0%      100.0%      100.0%      100.0%      100.0%
Gross profit........................................       21.0        21.8        21.9        22.6        22.4
Selling, general and administrative expense.........       16.4        16.7        18.5        20.6        20.1
Other income, net...................................        0.2         0.3         0.3         0.3         0.5
Income from operations..............................        4.8         5.4         3.7         2.3         2.8
Interest expense....................................        1.1         1.2         1.7         1.6         2.0
Income taxes........................................        1.5         1.6         0.8         0.3         0.3
Net income..........................................        2.2         2.6         1.2         0.4         0.5
</TABLE>
 
FIRST QUARTER OF 1996 COMPARED TO FIRST QUARTER OF 1995
 
    Net sales for the three months ended March 31, 1996 were $147.6 million,  up
22% from the first quarter of 1995 when sales were $120.5 million. The growth in
net  sales resulted from  an increase of  3% in same-store  sales from the first
quarter of 1995  and from  the acquisition  of new  building materials  centers.
Sales  in  the 1996  period  were negatively  affected  by lower  commodity wood
product prices. The price decrease contributed  to an overall price deflator  of
more  than 4%, the effect of which  reduced sales by approximately $6.0 million.
Excluding price deflation, same-store sales increased 7%.
 
    Gross profit as  a percentage  of sales declined  slightly to  22.4% in  the
first  quarter of 1996 from  22.6% in the first quarter  of 1995, primarily as a
result of  a  higher percentage  of  sales to  professional  contractors  (which
generally carry lower margins) in the 1996 period compared to 1995.
 
    Selling,  general and administrative  ("SG&A") expense was  $29.6 million in
the first quarter of 1996  as compared to $24.8  million in 1995, but  decreased
slightly  as a percentage of net sales from  20.6% in 1995 to 20.1% in 1996. The
Company believes that this reduction was due to improvements in costs associated
with integrating the 14  building materials centers acquired  in 1994 and  1995.
SG&A  expense as a  percentage of sales  in the 1996  period also was negatively
impacted by price deflation of 4% compared to the prior year because the Company
shipped more product per  dollar of sales,  which results in  higher costs as  a
percentage of overall sales.
 
    Interest expense increased to $3.0 million in the first quarter of 1996 from
$2.0  million in the same period of 1995, primarily due to additional borrowings
to finance working capital growth and acquisitions.
 
    Other income increased to  $737,000 from $316,000 in  the 1995 period.  This
increase  in 1996  was the  result of  a gain  of $395,000  on the  sale of real
property made available by  the consolidation of operations  in the Puget  Sound
market.
 
    Income  taxes were provided at estimated annual effective tax rates of 39.5%
and 39.1% for the periods ended March 31, 1996 and March 31, 1995, respectively.
The increase in the effective tax rate  from 1995 was primarily due to  book/tax
differences  in accounting for goodwill in  connection with acquisitions in 1994
and 1995.
 
    As a result of the foregoing  factors, net income increased by $246,000,  or
48.8%,  to $750,000,  or 0.5%  of net  sales in  the first  quarter of  1996, as
compared to $504,000, or 0.4% of net sales, in the first quarter of 1995.
 
                                       11
<PAGE>
1995 COMPARED TO 1994
 
    Net sales for 1995 were $630.2 million, an increase of 15% or $83.1  million
from  1994.  The  sales increase  reflects  $71.1 million  attributable  to 1995
acquisitions and $52.6 million for a full year of sales for acquisitions made in
1994. Declines in new home construction, as well as lower commodity wood product
prices, contributed to a decrease of  $40.6 million, or nearly 8% in  same-store
sales.  Excluding price deflation, same-store sales  were down 1%. On an overall
basis, average  sales  prices for  the  Company's products  declined  about  7%,
causing  a reduction in sales of  approximately $47.4 million. This decrease was
due  primarily  to  lower  prices  for  commodity  wood  products,  which   were
approximately 14% lower in 1995 than in 1994.
 
    Gross  profit increased to 21.9%  of net sales in 1995  from 21.8 % in 1994.
This slight increase  reflects the  ongoing efforts  of the  Company to  improve
margins  through  its  training  programs  as well  as  its  increased  focus on
value-added products, such  as roof  trusses, pre-hung  doors and  pre-assembled
windows,  and  increased  sales  to  service-oriented  consumers,  all  of which
generally have higher margins.
 
    During 1995, SG&A expense as a percentage of net sales increased to 18.5% in
1995 from  16.7% in  1994. This  increase was  attributable primarily  to  costs
incurred  integrating  locations  acquired  in  1994  and  1995  and  to support
acquisitions. These costs included, but were  not limited to, the conversion  of
computerized  point-of-sale  systems,  marketing  and  sales  programs, employee
training and  upgrading  of  equipment and  facilities  to  improve  operational
efficiencies.
 
    In  March 1995, the  Company issued $50.0 million  of 9.18% unsecured senior
notes. The proceeds from the  issuance of these notes  were used to support  the
Company's  capital expenditure and acquisition  activities and increased working
capital levels. Primarily due to the  issuance of these notes, interest  expense
increased to $10.7 million in 1995 from $6.5 million in 1994.
 
    Income  taxes were provided at annual effective tax rates of 38.7% and 38.0%
for 1995 and 1994, respectively. The increase in the effective tax rate was  the
result of the income tax impact of acquisitions in 1993 and 1994.
 
    As  a result of the foregoing factors,  net income in 1995 decreased by $6.5
million or 45.5% to  $7.8 million, or  1.2% of net sales,  as compared to  $14.3
million, or 2.6% of net sales, in the prior year.
 
1994 COMPARED TO 1993
 
    Net sales for 1994 were $547.1 million, an increase of 37% or $147.5 million
from  1993. These results  were attributable primarily to  (i) overall growth in
the markets the Company serves, (ii) increased market share, (iii)  improvements
in  operational efficiency  and (iv) an  aggressive acquisition  program. Of the
1994 increase in sales, $57.1 million was contributed by businesses acquired  in
1994.  Same-store sales in 1994 increased $42.7 million, or 11%. Excluding price
inflation, same-store  sales were  up 8%.  On an  overall basis,  average  sales
prices  for  the  Company's products  increased  approximately 3%  in  1994. The
increase in same-store  sales was due  in significant  part to a  high level  of
building activity in the Company's market area, particularly in Colorado, Idaho,
Nevada  and  Utah. Sales  for  1994 also  reflected a  full  year of  sales from
acquisitions made  in  1993; this  accounted  for  $47.7 million  of  the  sales
increase over 1993.
 
    Gross  profit increased to 21.8%  of net sales in 1994  from 21.0 % in 1993.
This increase reflected the  ongoing efforts of the  Company to improve  margins
through its training programs, its increased focus on value-added products, such
as roof trusses, pre-hung doors and pre-assembled windows and increased sales to
the  service-oriented  consumer, all  of  which generally  have  higher margins.
During 1993 and 1994,  the Company expanded  or constructed several  value-added
operations  and  acquired several  new  centers, some  of  which focused  on the
service-oriented consumer and some of which offered value-added products.
 
    SG&A expense, as a percentage of net sales, increased to 16.7% in 1994  from
16.4%  in  1993. This  increase was  principally a  function of  increased costs
associated  with  integrating  acquired  locations,  partially  offset  by   the
Company's continued cost control efforts.
 
                                       12
<PAGE>
    Interest  expense increased  to $6.5  million in  1994 from  $4.6 million in
1993. Average borrowings under the  Credit Agreement increased significantly  in
1994 to support the Company's capital expenditure and acquisition activities and
increased  working capital levels. In addition,  the average interest rate under
the variable rate Credit Agreement was higher in 1994 than in 1993.
 
    Income taxes of $8.7 million were provided in 1994, a 38.0% effective  rate.
In  1993, income taxes were $5.9 million,  a 40.1% effective rate. The reduction
in the income tax rate  was the result of increased  sales in states with  lower
tax rates.
 
    As  a result of the foregoing factors,  net income in 1994 increased by $5.5
million or 62.5% to  $14.3 million, or  2.6% of net sales,  as compared to  $8.8
million, or 2.2% on net sales, in the prior year.
 
LIQUIDITY AND CAPITAL RESOURCES
 
    The   Company's  principal  needs  for  capital  resources  are  to  finance
acquisitions, capital expenditures and  increased working capital  requirements.
The  Company's capital base has  grown in recent years  through the retention of
operating earnings and increased borrowings.  The Company had $121.1 million  of
long-term debt outstanding at December 31, 1995, consisting principally of $26.1
million of variable rate borrowings under the Credit Agreement and $95.0 million
of  term borrowings under fixed rate notes. See Note 3 of Notes to the Financial
Statements. At March 31, 1996, the Company had $127.9 million of long-term  debt
outstanding, consisting principally of $32.9 million of variable rate borrowings
under the Credit Agreement and $95.0 million of term borrowings under fixed rate
notes.
 
    OPERATIONS.    In 1995,  the Company  generated $21.3  million of  cash from
operating activities comprised  primarily of  net income  plus depreciation  and
amortization  charges. In addition,  in 1995 the  Company reduced inventories at
recently acquired locations. Working capital at year-end 1995 was $100.2 million
compared with $76.2 million at 1994  year-end. This increase in working  capital
was  attributable primarily to increases  in accounts receivable and inventories
as a result of the acquisition of four building materials centers in 1995.
 
    In the first  quarter of  1996, the  Company used  $6.0 million  of cash  in
operating  activities. Working capital increased from $100.2 million at December
31, 1995 to  $107.7 million at  March 31,  1996, due primarily  to the  seasonal
increase   in  the  Company's  accounts   receivable  and  inventories  and  two
acquisitions.
 
    CAPITAL INVESTMENT  AND ACQUISITIONS.   Capital  expenditures, exclusive  of
acquisitions,  totaled  $16.9  million  in  1995.  The  principal  property  and
equipment expenditures in 1995 included the  completion of the expansion of  the
Great  Falls, Montana center; the construction/expansion of roof truss plants in
Boise, Idaho and Fresno,  California; the construction of  a reload facility  in
Denver,  Colorado; the expansion of the Temple, Texas center and the purchase of
new management information systems.
 
    Cash used for  acquisitions totaled $36.4  million in 1995,  as the  Company
completed two acquisitions in 1995 involving four building materials centers. In
1994,  the Company completed eight acquisitions involving ten building materials
centers for aggregate consideration of $55.1 million, of which $21.5 million was
paid in cash, $10.6 million was paid  in promissory notes and $23.0 million  was
paid  in Common Stock.  Cash used for  acquisitions totaled $1.8  million in the
first  quarter  of  1996,  as  the  Company  completed  acquisitions  of   three
value-added facilities. See "Business--Acquisition Strategy" and Note 2 of Notes
to the Financial Statements.
 
    FINANCING.    In  March 1995,  the  Company  issued $50.0  million  of 9.18%
unsecured senior  notes  due  in  2006 and  increased  the  Company's  borrowing
capacity  under the  Credit Agreement from  $60.0 million to  $70.0 million. The
borrowings under  the  Credit  Agreement  decreased to  $26.1  million  at  1995
year-end  from $31.2  million at 1994  year-end. This overall  increase in debt,
together with  cash  flow  from operations,  funded  increased  working  capital
levels,  capital expenditures and acquisition  activities for 1995. In addition,
the security required for  the Credit Agreement and  the $25.0 million of  8.10%
secured  senior  notes was  eliminated.  Borrowings under  the  Credit Agreement
increased during the first quarter of 1996  to $32.9 million at March 31,  1996,
due  primarily to the seasonal increase in the Company's accounts receivable and
inventories.
 
                                       13
<PAGE>
    The various  agreements related  to long-term  borrowings contain  financial
covenants  and  restrictions. These  covenants require  the Company  to maintain
minimum  financial  measures  and  limit  additional  debt,  stock  repurchases,
dividend  payments,  capital  asset  additions,  liens  on  assets  and business
combinations. These covenants and restrictions have not materially impacted  the
Company's operations.
 
    Based  on its  ability to  generate cash  from operations  and the available
borrowing capacity at March 31, 1996 of $37.1 million under the Credit Agreement
(availability of  which is  subject  to the  satisfaction of  certain  customary
borrowing  conditions), the  Company believes it  will have  sufficient funds to
meet its currently anticipated requirements.
 
QUARTERLY RESULTS AND SEASONALITY
 
    Although weather affects the Company's results of operations throughout  the
year,  adverse  weather historically  has reduced  construction activity  in the
first and  fourth quarters  in  the Company's  markets. In  addition,  quarterly
results  historically have reflected, and are expected in the future to reflect,
fluctuations from period  to period as  a consequence of  the impact of  various
other  factors, including general economic  conditions, prices of commodity wood
products, levels of building activity and interest rates, single-family  housing
starts, employment levels, consumer confidence and the availability of credit to
professional  contractors and homeowners.  The composition and  level of working
capital typically  has changed  with  the level  of  sales, with  the  Company's
inventories  and  receivables increasing  during  periods of  rapidly increasing
sales. Working capital levels  (receivables and inventories) typically  increase
in  the second and third quarter of the year due to higher sales during the peak
building and construction season. These increases historically have resulted  in
negative  operating cash flows during this peak season, which have been financed
generally  through  borrowings  under   the  Credit  Agreement.  Collection   of
receivables and reduction in inventory levels following the peak of the building
and  construction season have more than offset this negative cash flow in recent
years. The Company believes  it will continue to  generate positive annual  cash
flows from operating activities.
 
                                       14
<PAGE>
                                    BUSINESS
 
GENERAL
 
    BMC  West is  a leading  regional distributor  of building  materials in the
western United States, selling primarily to professional contractors, as well as
to advanced,  service-oriented consumers.  In addition  to distributing  lumber,
panel  products  and other  building  supplies from  manufacturers,  the Company
conducts value-added activities,  which include  pre-hanging doors,  fabricating
roof  trusses, pre-assembling  windows and  pre-cutting lumber  to meet customer
specifications. The Company  operates 52 building  materials centers located  in
Arizona,  California, Colorado, Idaho, Montana,  Nevada, Oregon, Texas, Utah and
Washington. Value-added activities are conducted at 40 separate facilities, most
of which are located at building materials center sites.
 
    BMC West targets primarily  the professional contractor  market, which is  a
strategy  distinct from that pursued  by the high-volume, consumer-oriented home
center  retailers  now  found  throughout  the  United  States.  The   Company's
professional  contractor market consists  of persons engaged  principally in the
construction of single-family homes and, to a lesser extent, multi-family  units
and  light  commercial  and  industrial  construction.  Professional contractors
generally are  large-volume, repeat  customers  requiring certainty  of  product
availability  and delivery  and a number  of specialized  services typically not
offered by  home center  retailers.  The Company  also  targets the  repair  and
remodel  market which consists generally of advanced, service-oriented consumers
and contractors hired by them, who engage primarily in substantial projects such
as  room  additions,  kitchen   or  bathroom  remodeling   and  fence  or   deck
installations.
 
    BMC  West develops long-term  relationships with its  customers by providing
them with  a broad  range of  high-quality products  and services.  Each of  the
Company's building materials centers tailors its product and service mix to meet
the  demands of its local market.  The Company's products, which include lumber,
panel products, roofing materials,  pre-hung doors, roof trusses,  pre-assembled
windows,  cabinets,  hardware,  paint  and tools,  are  used  primarily  for new
residential  construction,  light   commercial  construction   and  repair   and
remodeling  projects.  These  products  are  sold  by  experienced professionals
consisting of both field  sales personnel and  facility-based sales and  support
personnel.   The  Company  offers  its  customers  various  services,  including
assistance with project  designs and materials  specifications, coordination  of
delivery of orders to job sites, provision of credit to pre-approved contractors
and  referral of  retail customers  to pre-qualified  contractors. Complete home
packages (delivered to the sites of the Company's builder customers according to
their construction schedules)  account for  a significant amount  of BMC  West's
total sales. In each of the last three years, professional contractors accounted
for  approximately  75%  to  79%  of  the  Company's  net  sales,  and advanced,
service-oriented consumers  accounted  for  approximately  19%  to  24%  of  the
Company's net sales.
 
INDUSTRY OVERVIEW
 
    The  building  materials  distribution  industry  is  characterized  by  its
substantial size, highly  fragmented ownership structure  and dependence on  the
cyclical  and  seasonal construction  industry. According  to the  United States
Department of Commerce, sales of building materials, lumber and hardware in  the
United  States in 1995 totaled approximately $110 billion. According to industry
sources, no building materials  distributor accounted for more  than 11% of  the
total market in 1995.
 
    Building  materials  distributors  generally concentrate  on  serving either
service-oriented professional  contractors or  price-oriented retail  consumers.
Contractor-oriented  building materials distributors, such  as BMC West, tend to
focus on contractors and advanced consumers and compete principally on the basis
of  service,  product  quality   and  availability,  on-time  delivery,   credit
availability  and reliability, as  well as price. Home  center retailers, on the
other hand,  target the  mass consumer  market, in  which competition  is  based
principally  on  price,  merchandising,  location  and  cooperative advertising.
Typically, contractor-oriented distributors  offer a greater  range of  services
and  a  wider  variety  of  high  quality  building  products  than  home center
retailers.
 
    The  contractor-oriented   building  materials   distribution  industry   is
characterized by a large number of privately owned, small, regional distribution
companies  and single-site  enterprises. These  businesses are  typically family
run, relationship-based operations which focus on offering service, delivery and
reliability to their customers. As a result
 
                                       15
<PAGE>
of their size,  many of these  businesses do not  possess sophisticated  working
capital  management  and  control  systems  and  generally  lack  the purchasing
expertise of a large  entity, such as  BMC West. Because  of these factors,  the
Company   believes  that  these  businesses   include  a  number  of  attractive
acquisition candidates.
 
    The building  materials  distribution  industry is  closely  linked  to  the
economic  cycles and seasonality associated  with the construction industry. The
Company monitors the issuance of new  housing permits as an important  indicator
of  its potential future  sales volume. Construction  expenditures are largely a
function of  new  residential, commercial  and  industrial building  demand  and
repair  and remodeling projects undertaken.  Residential construction is closely
linked to  new  job  formation, household  formation,  interest  rates,  housing
affordability,  availability  of mortgage  financing, regional  demographics and
consumer  confidence.  Commercial  construction  is  significantly  affected  by
vacancy  and  absorption  rates,  interest  rates,  long-term  regional economic
outlooks and the availability of financing. Industrial construction expenditures
are linked to the industrial economic outlook, corporate profitability, interest
rates and capacity utilization. In  difficult economic environments, repair  and
remodeling  expenditures  generally represent  a  greater percentage  of housing
construction expenditures as new housing starts decline. BMC West centers target
participants in all  of these sectors,  although economic conditions  frequently
dictate  which sector they may emphasize at a given time. A key attribute of the
contractor-oriented   building   materials   distribution   industry   is   that
professional  contractors typically use the same building materials supplier for
all of their projects. In order to generate and maintain this loyalty, suppliers
generally focus on providing the professional contractor with service,  quality,
on-time delivery and value-added services.
 
GEOGRAPHIC MARKETS
 
    The  Company  believes  that it  is  well  positioned in  some  of  the most
attractive markets for building materials  in the United States. Population  and
migration  trends in  the markets served  by BMC  West, as well  as the relative
strength of many of the local economies in the regional markets it serves,  have
resulted  in the growth of residential housing  in these markets at rates faster
than the United States as a whole. BMC West operates centers in 7 of the top  10
fastest  growing states over the last five  years, based upon U.S. Bureau of the
Census estimates. In addition, according to  the U.S. Bureau of the Census,  the
Company's 12-state market area is forecast to outpace the rest of the country in
its  rate of population growth between 1995  and 2000. The Company believes that
these population and migration trends provide a foundation for continued growth.
 
    Furthermore, BMC West's 52 building materials centers operate in 18 distinct
regional  markets,  which   collectively  have  a   diverse  economic  base   of
manufacturing,  agricultural,  recreational  and  service-based  industries. The
Company believes that this geographic diversification lessens the impact on  the
Company of a downturn in any one of its regional markets.
 
OPERATING STRATEGY
 
    BMC  West's management  has organized its  52 building  materials centers as
autonomous, decentralized units capable of responding to local market needs  and
offering  competitive  prices.  Center  managers have  a  substantial  degree of
control over inventory,  merchandising and  pricing, and can  develop their  own
specific  programs to meet the needs  of their particular markets. The Company's
decentralized, microcomputer  based, point-of-sale  information system  provides
each  center manager with  real-time pricing, inventory  availability and margin
analysis.  At  the  same  time,  the  Company  provides  centralized  purchasing
management,  credit  and  financial  controls,  management  information systems,
training and marketing  support. The  compensation of substantially  all of  the
employees  of each unit is based, in  part, on the performance of the individual
unit.
 
    BMC West believes that many of  its building materials centers hold a  first
or  second place local market share  among professional contractors and that the
Company, as a whole, has the largest sales volume of any distributor of building
materials serving  primarily professional  contractors  in its  12-state  market
area.  The Company intends to maintain  its leadership position in these markets
by continuing to provide a broad range of high-quality products and services  to
professional  contractors and advanced, service-oriented consumers. The services
provided by the  Company include  assisting customers with  project designs  and
materials  specifications, delivering orders  to job sites,  providing credit to
pre-approved contractors, and referring consumers to pre-qualified  contractors.
In  addition to distributing products  from manufacturers, the Company currently
conducts value-added operations at 40 facilities  (most of which are located  at
building  materials  center  sites) in  eight  states,  as compared  to  16 such
facilities in six states  at the end of  1991. Value-added facilities  generally
are    constructed   or    acquired   at    or   near    a   center    and   can
 
                                       16
<PAGE>
service a sales area 35  to 45 miles in radius.  The Company plans to  introduce
value-added  products  such as  pre-hung doors,  roof trusses  and pre-assembled
windows in more of the markets  served by the Company. These products  generally
carry higher gross margins than commodity wood products.
 
    The  Company continues to  enhance and broaden  its customer services, which
include new programs  developed by  its building materials  center managers  and
corporate  management. For  example, at  certain of  its locations,  the Company
conducts  "How-To"   seminars  for   consumers,  refers   retail  customers   to
pre-qualified  contractors and  offers a private  label credit  card. BMC West's
decentralized operating philosophy permits unit managers to respond to the needs
of their local  markets with  creative new  products and  services. The  Company
continues to upgrade its consumer advertising and merchandising, particularly in
smaller  markets  where  it  places  more  focus  on  advanced, service-oriented
consumers.
 
    BMC West's total quality management program defines quality as providing the
best products and services  at the right  place at the  right time. The  program
provides  an environment  for employees  to identify  cost reduction  and margin
improvement  opportunities,   empowers  all   employees  to   make   significant
contributions  and work together  as a team and  measures BMC West's performance
and follow through on improvement efforts.  Quality teams at BMC West  locations
seek  to  make  specific,  measurable  improvements  in  the  Company's critical
processes, including order processing, inventory control, delivery and  customer
assistance.  These  teams  include  employees  from  all  functional  areas  and
backgrounds. The Company supports this program through training and the  sharing
of ideas among locations.
 
ACQUISITION STRATEGY
 
    BMC  West continues to  seek acquisitions of  building materials centers and
value-added  facilities  that  serve  professional  contractors  and   advanced,
service-oriented  consumers in  new and existing  markets in  the western United
States. The Company believes that the fragmented nature of its industry presents
opportunities for  additional  acquisitions of  strategically  located  building
materials  centers and  value-added facilities. The  management of  BMC West has
substantial experience in expanding building materials supply businesses through
acquisitions.  Over  the  past  several  years,  the  Company's  management  has
contacted  and visited many acquisition candidates in the western United States.
In addition, the Company is contacted regularly by persons seeking to sell their
businesses. The Company believes that, due to professional contractor loyalty to
existing centers, the most  expedient way for BMC  West to enter new  geographic
markets is through acquisitions. The Company also believes that the availability
of  a public market for its Common Stock provides it with additional flexibility
in pursuing acquisitions.
 
    While the  Company evaluates  each potential  acquisition candidate  on  its
individual merits, its primary objective has been to acquire profitable building
materials  centers  that meet  certain  general criteria.  The  typical targeted
acquisition candidate is located on a 5 to 10 acre site which includes 8,000  to
15,000  square feet of indoor showroom and  contractor sales space and 20,000 to
50,000 square feet of covered storage area, with reasonable access to the  local
road  system and proximity to regional  areas of construction demand. Additional
factors include the  reputation of the  center among local  contractors and  the
quality of the center's management and sales organization.
 
    Typically,  after  an  acquisition of  a  center, the  Company  enhances the
center's sales  and  service capabilities  and  expands its  product  offerings,
including value-added products, in an effort to increase sales. In addition, the
Company  seeks to implement its accounting  and management systems in each newly
acquired center.  These  systems  assist  in the  effective  management  of  the
Company's inventories and accounts receivable and in efforts to improve customer
service.  BMC West generally is able to use its centralized purchasing expertise
to reduce product costs  following acquisitions. See "Risk  Factors--Acquisition
and Development Strategy."
 
                                       17
<PAGE>
    In  1994, the Company acquired 10  locations in Arizona, Colorado, Texas and
Washington for aggregate consideration of $55.1 million, of which $21.5  million
was  paid in cash, $10.6 million was  paid in promissory notes and $23.0 million
was paid in  Common Stock of  the Company.  In 1995, the  Company acquired  four
locations in Texas for aggregate consideration of $36.4 million in cash. To date
in 1996, the Company has acquired three value-added facilities in Texas and Utah
for  aggregate consideration of  $3.4 million in cash.  The following chart sets
forth the number of building materials centers acquired and consolidated by  the
Company  during each of the last  five fiscal years. See Note  2 of Notes to the
Financial Statements.
 
<TABLE>
<CAPTION>
                                                   1991         1992         1993         1994         1995
                                                   -----        -----        -----        -----        -----
<S>                                             <C>          <C>          <C>          <C>          <C>
Beginning balance.............................          29           30           32           39           49
Acquisitions..................................           1            3            7           10            4
Other*........................................      --               (1)      --           --               (1)
                                                        --           --           --           --           --
Ending balance................................          30           32           39           49           52
                                                        --           --           --           --           --
                                                        --           --           --           --           --
</TABLE>
 
           ----------------------------------------------
           *  In 1992,  the  Company  consolidated  its  Santa  Rosa,
              California  center with its Modesto, California center.
              In  1995,  the   Company  consolidated  its   Oakhurst,
              California center with its Fresno, California center.
 
PRODUCTS
 
    Each  BMC West  center carries a  core of approximately  9,000 stock keeping
units ("SKUs"), plus an average of an additional 6,000 SKUs, the product mix  of
which varies by location. The Company's principal products include lumber, panel
products,   roofing  materials,  pre-hung  doors,  roof  trusses,  pre-assembled
windows, cabinets, hardware, paint and  tools. In addition to distributing  such
products, the Company conducts value-added activities, which include pre-hanging
doors,  fabricating roof trusses, pre-assembling  windows and pre-cutting lumber
to meet customer specifications.
 
    The following table sets forth  information regarding the percentage of  net
sales  represented by the specified categories of products sold at the Company's
centers during each of the last  three fiscal years. While the Company  believes
that  the percentages included  in the table  generally indicate the  mix of the
Company's sales by category  of product, the  specific percentages are  affected
year-to-year  by changes  in the  prices of commodity  wood products  as well as
changes in unit volumes sold.
 
<TABLE>
<CAPTION>
CATEGORY OF PRODUCT                                                       1993          1994          1995
- --------------------------------------------------------------------     ------        ------        ------
<S>                                                                   <C>           <C>           <C>
Wood products (lumber and panel products)...........................          56%           51%           47%
Building materials (roofing, siding, insulation and steel)..........          23            23            23
Millwork (pre-hung doors, trusses, windows and moldings)............          13            15            18
Other (paint, hardware, tools, electrical and plumbing).............           8            11            12
                                                                              --            --            --
                                                                             100%          100%          100%
                                                                              --            --            --
                                                                              --            --            --
</TABLE>
 
    The Company fabricates roof  trusses used to form  roof support systems  and
pre-hung door units and pre-assembled window units for the residential and light
commercial   building  markets.  Door   and  window  units   are  purchased  and
pre-assembled to  contractor specifications  using a  variety of  moldings.  The
door,  truss and  window product  lines are  particularly attractive  since they
generally carry higher margins  and are not offered  by many building  materials
centers  or  home center  retailers. The  Company believes  that its  ability to
provide pre-hung doors, roof  trusses and pre-assembled windows  in a number  of
locations  is a competitive advantage when soliciting business from contractors.
Inventories  of  door  units,  roof   trusses  and  pre-assembled  windows   are
predominantly work-in-process, as these units are usually built to order.
 
    The  Company's customers generally order products, including pre-hung doors,
roof trusses,  and  pre-assembled  windows on  an  as-needed  basis.  Therefore,
virtually  all product  shipments in a  given fiscal quarter  result from orders
received in that quarter.  Consequently, order backlog  represents only a  small
percentage  of the product  sales anticipated by  the Company in  a given fiscal
quarter and  is not  indicative of  the Company's  actual sales  for any  future
fiscal period.
 
                                       18
<PAGE>
    As  a distributor of building materials  and products, the Company regularly
monitors innovations in product design to meet its customers' needs. The Company
test markets  products that  substitute for  dimensional lumber  and has  for  a
number  of  years  distributed  alternative products,  such  as  engineered wood
products and steel studs, and has provided its builder customers information and
instruction on the use of such products.
 
SALES AND MARKETING
 
    Each of BMC  West's 52 building  materials centers tailors  its product  and
service  mix to the needs of its local  market and operates as a separate profit
center. The Company reaches its professional contractor customers mainly through
field  sales  representatives,  advertisements  in  trade  journals  and   local
promotional events. The Company's customers include a broad base of professional
contractors   and  advanced,  service-oriented  consumers.  No  single  customer
accounted for more than 2% of net sales in 1995.
 
PROFESSIONAL CONTRACTOR MARKET
 
    The professional  contractor  market  is comprised  of  two  major  customer
segments, new housing contractors and commercial and industrial contractors. The
Company's  sales to professional contractors  accounted for approximately 75% of
1995 net sales (including  67% to new housing  contractors and 8% to  commercial
and    industrial   contractors).   Professional   contractors   accounted   for
approximately 75% to 79% of  the Company's net sales in  each of the last  three
years. A significant amount of this business consisted of sales of complete home
packages,  including  framing lumber,  panel products,  pre-hung doors  and trim
packages, roof trusses,  pre-assembled windows  and other  products required  to
construct or improve a home.
 
    BMC  West  provides  a  wide  range  of  customer  services  to professional
contractors to  meet their  needs for  credit, delivery  and expert  assistance.
While  pricing is  an important  purchasing criterion  for these  customers, the
Company believes  that other  factors such  as coordinated  on-time  deliveries,
quality  and availability  of products,  relationships with  salespeople, credit
availability and technical support are  equally important. The Company  believes
that its skills in these areas are important competitive advantages.
 
    BMC West's principal channel for reaching the professional contractor market
is  a sales force of approximately  230 field sales representatives supported by
approximately  215  facility-based  salespeople.  Field  sales   representatives
actively  solicit business and work with  the facility-based managers to develop
bids for contractor projects. The Company provides sales training for all  sales
representatives  and sales management training for all sales managers and center
managers. Sales representatives are compensated through a combination of  salary
and commission based on individual sales volume and gross margin.
 
    BMC  West's  center managers  ensure that  building materials  are delivered
according  to  contractor  specifications  and  schedules.  Technical  personnel
involved  in purchasing,  dispatching, invoicing  and credit  support both field
sales personnel and center managers to enhance customer satisfaction.
 
REPAIR AND REMODEL MARKET
 
    The  repair   and   remodel   market   consists   generally   of   advanced,
service-oriented consumers and repair and remodel contractors hired by them. The
Company's  sales to these customers accounted  for approximately 24% of 1995 net
sales and for approximately 19%  to 24% of net sales  in each of the last  three
years.  The Company's sales  to this market generally  carry higher margins than
sales to the professional contractor market. The volume of sales to this  market
varies  depending on  location, with  the Company  actively pursuing  repair and
remodel business in smaller markets which  have not attracted large home  center
retailers.  Showroom space  varies from store  to store,  typically ranging from
approximately 5,000  to  20,000  square feet.  This  space  features  attractive
displays  and  is  frequently  remerchandized  to  reflect  product  and service
improvements. Sales personnel are trained to service both the more sophisticated
contractor and  the individual  consumer, thereby  providing the  consumer  with
professional advice for home improvement projects.
 
    To  enhance  public  exposure,  BMC  West  frequently  advertises  in  local
newspapers,  incorporates  special  display  signs   in  its  stores  and   uses
promotional  events  such as  "How-To"  programs sponsored  by  manufacturers of
building materials.  Management believes  that these  advertising and  promotion
programs,  in conjunction with the Company's experienced sales staff, enable BMC
West to compete effectively in the repair and remodel market.
 
                                       19
<PAGE>
CREDIT
 
    Overall credit policy for sales  to contractors is established by  corporate
management,  but each center  has responsibility for  overseeing local accounts.
The individual center managers  and their staff are  trained to have a  thorough
understanding  of  state lien  laws, which  provide  security for  the Company's
accounts receivable. The Company's credit policies, together with daily computer
monitoring of customer balances, have resulted in an average bad debt expense of
approximately 0.16% of net sales during the last five years, with no single year
exceeding 0.22%. The Company believes that its bad debt expense levels are among
the lowest in the industry.
 
    In addition  to the  credit extended  by the  Company, the  Company  accepts
third-party  credit  cards  such  as  MasterCard,  Visa,  American  Express  and
Discover. BMC  West  also  offers  a private-label  credit  card  to  individual
customers.  The BMC West card provides  customers with rapid access to revolving
credit lines  and  offers  them  opportunities to  take  advantage  of  deferred
financing  and  other  promotions. This  program  is owned  and  administered by
Household Retail Services, a  division of Household Bank,  N.A., and is  without
recourse  to BMC West. Household Retail Services handles all credit approval and
charge administration functions,  and the  Company receives  payment within  two
days  of submitting charge data. Use of the credit card program gives BMC West a
low-cost means of extending credit to these customers without credit exposure.
 
    Approximately 87% of the Company's sales  in 1995 were made to customers  to
whom  the Company had extended credit for such sales. The remaining 13% of sales
in 1995 included cash purchases and purchases made with third-party credit cards
and the Company's private-label credit card.
 
MANAGEMENT INFORMATION SYSTEMS
 
    BMC West's  financial  information,  operational  data,  and  other  related
statistical  information are processed  and maintained at  its headquarters on a
network of server computers and work stations. The Company recently installed  a
state-of-the-art  financial reporting and relational database system designed by
Oracle Corporation.  The  flexible nature  of  the Company's  installed  network
allows  for  accumulation,  processing  and  distribution  of  information using
industry  standard   computing  resources   and  programs.   The   point-of-sale
information  systems used by BMC West operate on IBM RS6000 computers located at
each  center.  These  on-line  systems  provide  real-time  pricing,   inventory
availability  and margin analysis,  allowing each center's  sales staff to serve
its customers better,  while giving  management the  ability to  access and  use
timely information to improve operations. Management believes that these systems
also  have  enabled the  Company to  enhance  profit margins,  improve inventory
turnover  through  identification   and  elimination   of  low-turnover   items,
accelerate  analysis of sales trends and  accounts receivable and better monitor
employee productivity, customer credit limits and lien protections.
 
PURCHASING
 
    The Company purchases merchandise from  a large number of manufacturers  and
suppliers.  In 1995, the Company's  largest supplier accounted for approximately
7% of the Company's total purchases. In 1994, a different supplier accounted for
approximately 11% of the Company's total purchases. The Company does not believe
that the loss of any single supplier would have a material adverse effect on the
Company.
 
    The Company purchases a majority of its inventory on a centralized basis  in
order  to  capitalize  on  economies  of scale,  although  a  limited  amount of
purchasing and all  ordering is  controlled at  individual centers  in order  to
respond  to local  needs. A buying  group located at  the Company's headquarters
handles bulk  commodity  purchases,  negotiates  with  major  lumber  and  panel
products  suppliers,  and  manages relations  with  the  Company's non-commodity
suppliers. This group  consolidates the  Company's purchase orders  in order  to
negotiate the best possible prices and terms. Although the Company seeks to time
its purchases to take advantage of price movements, BMC West has a policy not to
speculate in the commodity wood products market.
 
    Approximately 47% of the Company's 1995 sales were attributable to commodity
wood  products. Prices  of commodity  wood products  are subject  to significant
volatility and directly affect the Company's  sales. During 1995, the prices  of
commodity  wood products purchased and  sold by the Company  were on average 14%
lower  than  in  1994.  The  Company  has  established  purchasing  and  pricing
procedures to minimize exposure to inventory writedowns. The Company's commodity
buyers  monitor inventory and sales levels in  each location on a regular basis.
With this supply and demand information, buyers can avoid overstocking commodity
wood products.  As  a result,  the  Company  turns its  commodity  wood  product
inventory    approximately   12   times   per   year.   Such   rapid   inventory
 
                                       20
<PAGE>
turnover  limits  the  Company's  potential  exposure  to  inventory  loss  from
commodity  price  fluctuations. In  addition,  the Company's  real-time computer
network allows  the  Company  to  adjust sales  prices  as  purchase  prices  of
commodity   products  change.  See  "Risk   Factors--Prices  of  Commodity  Wood
Products."
 
    The Company's  hardware  products  are purchased  primarily  from  Cotter  &
Company  ("True  Value"), Ace  Hardware ("Ace")  and Hardware  Wholesalers, Inc.
("HWI"). By serving as a True Value, Ace and HWI dealer, the Company  eliminates
the need to maintain separate distribution centers for such products.
 
COMPETITION
 
    BMC  West operates in a highly  competitive environment. Due to the regional
nature of its industry,  BMC West's competitive  environment varies by  location
and by market segment.
 
    Within  the professional  contractor market, the  Company competes primarily
with privately owned,  single-site enterprises and  local and regional  building
materials  chains. Professional contractors  generally select building materials
centers on  the  basis  of  availability  of  knowledgeable  personnel,  on-time
delivery,  reliable  inventory levels,  availability  of credit  and competitive
pricing. BMC West  believes it competes  favorably on each  of these bases.  The
Company's  relatively  large size  also permits  it  to attract  experienced and
professional sales and service personnel and provides BMC West the resources  to
offer  Company-wide product  and service  training programs.  By working closely
with its contractor customers and  utilizing the Company's real-time  management
information system, BMC West's centers maintain appropriate inventory levels and
are well positioned to deliver completed orders on time to individual job sites.
The  Company also competes  to a lesser  extent with certain  larger home center
retailers such  as Home  Depot, HomeBase  and Builders  Square in  this  market.
Competition from large home center retailers can prompt other local suppliers to
pursue  professional contractor business more  aggressively. See "Risk Factors--
Competition."
 
    Within the repair and remodel market, BMC West competes primarily with local
lumber yards and  hardware stores and,  in certain of  its markets, with  larger
home center chains such as Home Depot, HomeBase and Builders Square. The Company
believes  that it  meets the needs  of advanced,  service-oriented consumers and
repair and remodel  contractors more  effectively than such  competitors by  (i)
providing  primarily higher quality products within each category, (ii) offering
consumers and contractors  access to  knowledgeable staff  and (iii)  developing
contractor  referral programs and "How-To"  programs to address the requirements
of consumers on larger projects.
 
EMPLOYEES
 
    At March 31, 1996, BMC West  employed approximately 3,000 persons, of  which
approximately  300 were represented  by unions. The  Company has not experienced
any strikes or other work  interruptions and has maintained generally  favorable
relations  with  its  employees.  The  following  table  shows  the  approximate
breakdown by job function of the Company's employees:
 
<TABLE>
<S>                                                             <C>
Officers, corporate and center management and
 administrative...............................................         24%
Field and facility-based sales force..........................         13%
Retail operations (cashiers, receiving, sales support)........         13%
Delivery (truck drivers, load builders, yard).................         31%
Assembly (truss, door and window).............................         19%
</TABLE>
 
                                       21
<PAGE>
PROPERTIES
 
    BMC West's headquarters is  in Boise, Idaho.  In addition to  administrative
buildings,  the Company has four primary types of facilities: building materials
supply centers,  pre-hung  door plants,  truss  plants and  window  distribution
facilities.  The Company  believes that its  facilities are  well maintained and
generally are adequate for the Company's  needs for the foreseeable future.  All
of  the Company's material  assets, including land and  facilities, are owned or
leased by the Company.
 
<TABLE>
<CAPTION>
                                                                       SQUARE FOOTAGE
                                               ACREAGE           --------------------------
                             DATE      ------------------------    SHOWROOM/      PLANT/
     STATE AND CITY        ACQUIRED       OWNED       LEASED        OFFICE       WAREHOUSE                PRIMARY USES
- ------------------------  -----------  -----------  -----------  -------------  -----------  ---------------------------------------
<S>                       <C>          <C>          <C>          <C>            <C>          <C>
ARIZONA
  Phoenix                       1994           --         12.7         4,000        81,000   Center
CALIFORNIA
  Atwater                       1990           --          2.4         1,632         7,874   Center
  Fresno                        1989         13.1           --        12,334        78,079   Center, Door Plant, Truss Plant
  Merced                       *1977          2.9          0.5         9,499        54,122   Center, Door Plant
  Modesto                       1989         14.0           --         7,101        38,897   Center, Door Plant, Truss Plant
COLORADO
  Aspen                        *1978          4.1           --         9,000        21,088   Center
  Boulder                       1990          6.0           --        12,600        19,800   Center
  Colorado Springs              1994          3.3          0.4         5,000        14,000   Center, Door Plant
  Denver Door                   1990           --          1.0         3,120        33,326   Center, Door Plant
  Denver                        1994          8.7           --        17,064        51,891   Center, Door Plant
  Englewood                     1990          3.9           --         3,200        14,900   Center
  Evergreen                     1990          3.7           --         5,000        15,600   Center
  Fort Collins                  1990         10.0          0.5        12,000        46,588   Center, Door Plant
  Fort Lupton                   1994         10.5           --         2,610        26,900   Truss Plant
  Grand Junction                1994          4.9           --        12,000        27,450   Center
  Glenwood Springs              1990          2.0           --         5,540        10,240   Center
  Greeley                       1994         11.0           --        37,846        19,480   Center, Door Plant, Truss Plant
  Pueblo                        1994         10.7           --        11,000        48,700   Center, Door Plant
  Steamboat Springs            *1978          1.4          2.8         7,580        18,790   Center
IDAHO
  Boise                        *1978         23.9           --        18,664        56,300   Center, Truss Plant
  Boise                         1988           --          0.5        24,066            --   Headquarters
  Emmett                       *1957          2.6           --         4,878         8,032   Center
  Idaho Falls                  *1957         11.5          0.4        10,652        55,234   Center, Door Plant, Truss Plant
  Lewiston                      1990           --          2.1         7,260        24,390   Center, Door Plant
  Meridian                     *1979           --          3.8         1,000        18,416   Door Plant
  Pocatello                    *1957          4.6           --        12,000        10,600   Center
  Rexburg                      *1957          1.9           --         8,168        12,288   Center
  Twin Falls                    1993          0.5           --           600         6,000   Center, Door Plant
MONTANA
  Great Falls                   1993          9.0           --        49,024        40,000   Center
NEVADA
  Carson City                   1992          7.6           --        17,225        40,924   Center, Door Plant
  Gardnerville                  1992          4.4           --         8,850        17,222   Center
  Reno                          1992           --          3.0         2,000            --   Center
OREGON
  Beaverton                    *1979          5.6           --         6,800        25,260   Center, Door Plant
</TABLE>
 
                                       22
<PAGE>
<TABLE>
<CAPTION>
                                                                       SQUARE FOOTAGE
                                               ACREAGE           --------------------------
                             DATE      ------------------------    SHOWROOM/      PLANT/
     STATE AND CITY        ACQUIRED       OWNED       LEASED        OFFICE       WAREHOUSE                PRIMARY USES
- ------------------------  -----------  -----------  -----------  -------------  -----------  ---------------------------------------
TEXAS
<S>                       <C>          <C>          <C>          <C>            <C>          <C>
  Abilene                       1995         16.8           --        13,750        22,500   Center, Door Plant, Truss Plant
  El Paso                       1991          7.0           --        16,638        16,840   Center, Door Plant, Truss Plant
  Fredericksburg                1993          4.0           --        18,450        22,660   Center
  Hurst                         1994          5.3          2.3         9,480        64,600   Center, Door Plant
  Killeen                       1994          3.0           --         8,500        36,633   Center, Door Plant
  Marble Falls                  1993          5.2           --        17,000        21,580   Center
  New Braunfels                 1995         23.6          5.2        13,512        26,500   Center, Truss Plant, Window
                                                                                             Distribution
  North Austin                  1995         18.3          3.9        52,146       102,000   Center, Door Plant, Window Distribution
  San Marcos                    1993          3.0           --        13,920        20,384   Center
  Shiner                        1993          1.2          0.4         6,400        12,615   Center
  South Austin                  1995          6.5           --        34,255            --   Center
  Temple                        1993         11.3           --        25,200        60,635   Center
UTAH
  Ogden                        *1947          0.5          1.2         3,800        16,890   Center
  Orem                         *1947          9.9          7.0         5,884        19,672   Center, Door Plant, Truss Plant
  Salt Lake                     1990         16.8           --        12,744        64,088   Center, Door Plant, Truss Plant
  Tooele                       *1947          1.5          0.7         2,000         5,320   Center
WASHINGTON
  Issaquah                      1994           --         16.4        44,420       106,368   Center, Door Plant
  Kent                          1994          4.5           --        19,200        26,200   Center
  N. Everett                    1994         29.3           --           100        85,446   Center, Truss Plant
  Spokane                       1990          5.0           --         7,500        50,812   Center, Door Plant
  Tacoma                       *1979          8.9           --         5,008        39,770   Center, Door Plant, Truss Plant
  Vancouver                     1994           --          5.4         4,800        12,000   Center
</TABLE>
 
- ------------------------
 *  These locations were purchased from  Boise Cascade Corporation in 1987,  and
    each  date listed indicates the date such location was opened or acquired by
    Boise Cascade Corporation.
 
LEGAL PROCEEDINGS
 
    From time  to  time, the  Company  is  involved in  certain  litigation  and
administrative  proceedings  primarily  arising  in  the  normal  course  of its
business. In the opinion of management,  the Company's recovery, if any, or  the
Company's  liability,  if any,  under any  pending litigation  or administrative
proceeding, would not materially affect its financial condition or operations.
 
                                       23
<PAGE>
                                   MANAGEMENT
 
EXECUTIVE OFFICERS AND DIRECTORS
 
    The executive officers and directors of the Company, their ages as of May 1,
1996, and the date each of them was first elected as an officer or director, are
as follows:
 
<TABLE>
<CAPTION>
                                                                              DATE FIRST ELECTED AS AN
          NAME                AGE               POSITION OR OFFICE               OFFICER OR DIRECTOR
- -------------------------     ---     --------------------------------------  -------------------------
<S>                        <C>        <C>                                     <C>
George E. McCown              60      Chairman of the Board of Directors                   1987
Donald S. Hendrickson         66      President, Chief Executive Officer and               1987
                                       Director
Robert L. Becci               55      Vice President and Controller                        1990
Richard F. Blackwood          58      Senior Vice President of Operations                  1987
Leroy D. Custer               51      Vice President of Marketing &                        1990
                                       Purchasing
Ellis C. Goebel               54      Vice President and Treasurer                         1987
Steven H. Pearson             48      Vice President of Human Resources                    1987
Alec F. Beck                  40      Director                                             1996
H. James Brown                55      Director                                             1991
Wilbur J. Fix                 68      Director                                             1991
Robert V. Hansberger          75      Director                                             1988
Guy O. Mabry                  69      Director                                             1991
Robert E. Mellor              52      Director                                             1991
Peter S. O'Neill              59      Director                                             1993
</TABLE>
 
    Mr. McCown is Chairman of the Board of Directors of the Company and has been
a director since 1987. He was cofounder  and has been a Managing Partner of  MDC
Management Company, the general partner of McCown De Leeuw & Co., since 1984 and
was instrumental in financing and executing the leveraged buy-out of the Company
in  1987. Mr. McCown currently serves as a director of three other publicly held
corporations, Nimbus  CD International,  Inc., Specialty  Paperboard, Inc.,  and
Vans,  Inc.  Mr. McCown  also serves  as  a director  of several  privately held
companies.
 
    Mr. Hendrickson  has served  as President,  Chief Executive  Officer, and  a
Director  of the Company  since its inception in  November 1987. Mr. Hendrickson
served in several management positions at Boise Cascade Corporation from 1974 to
1987,  including  General  Manager  of  Boise  Cascade  Corporation's   Building
Materials  Distribution Division  at the  time of  the leveraged  buy-out of the
Company. Mr. Hendrickson received a B.A. in economics from the Albertson College
of Idaho  and  an M.B.A.  from  the University  of  Chicago Graduate  School  of
Business.  He is also a  certified public accountant in  the State of Idaho. Mr.
Hendrickson currently  serves as  a director  of a  privately held  company,  as
Trustee for Albertson College of Idaho, and as Director-at-Large for the Western
Building Materials Association.
 
    Mr. Becci has served as the Company's Controller since its inception in 1987
and  was  elected Vice  President in  1990.  Mr. Becci  was Controller  of Boise
Cascade's Building Materials Distribution Division from 1985 to 1987.
 
    Mr. Blackwood served as  Vice President of Operations  North of the  Company
from 1987 to May 1996 and was promoted to Senior Vice President of Operations in
May 1996. He was Operations Manager of nine wholesale distribution facilities of
Boise  Cascade's Wholesale Building Materials Distribution Division from 1985 to
1987.
 
    Mr. Custer has served as Marketing Manager of the Company since 1988 and was
elected Vice  President of  Marketing in  1990. Mr.  Custer was  Manager of  BMC
West's  Boise,  Idaho, unit  from 1987  to  1988. He  served as  Boise Cascade's
Manager of Commodity Lumber and Panel Procurement from 1981 to 1987.
 
    Mr. Goebel has served as Vice  President and Treasurer of the Company  since
its  inception  in  November 1987.  He  was  Division Credit  Manager  for Boise
Cascade's Building Materials Distribution Division from 1982 to 1987.
 
                                       24
<PAGE>
    Mr. Pearson has served as Vice  President of Human Resources of the  Company
since  its inception  in November  1987. He  was Employee  Relations Manager for
Boise Cascade's Building Materials Distribution Division from 1985 to 1987.
 
    Mr. Beck has over 20 years experience in the building materials industry. He
joined Stripling-Blake Lumber  Company, Inc. ("SBLC")  an Austin Texas  building
materials  retailer, in  1974 and  served as President  from 1983  to 1995, when
certain assets of SBLC were sold to the Company. He served as Vice President  of
Operations South of the Company from June 1995 to February 1996.
 
    Dr. Brown is President of the Lincoln Institute of Land Policy, a non-profit
educational  institution dedicated to the teaching of land policy, economics and
taxation. Dr. Brown  previously served  as a Professor  at the  John F.  Kennedy
School  of Government at  Harvard University from  1976 to 1996.  Dr. Brown also
served as Director of the Joint Center for Housing Studies at Harvard University
from 1984 to  1996 and  as Chairman of  Harvard University's  City and  Regional
Planning  Program from  1981 to 1996.  He also has  served as a  director of the
State,  Local  and  Intergovernmental  Center  at  Harvard  University  and  the
MIT/Harvard University Joint Center for Urban Studies.
 
    Mr.  Fix  has over  42  years of  management  experience with  Allied Stores
Corporation, a retail holding company. Most  recently, he served as Senior  Vice
President  of  Allied  Stores  Corporation from  1987  until  his  retirement in
February of 1993. He also served as Chairman and Chief Executive Officer of  The
Bon  Marche,  a subsidiary  of Allied  Stores Corporation,  from 1980  until his
retirement. He  currently  serves as  a  director  of one  other  publicly  held
company, Vans, Inc., and several privately held companies.
 
    Mr.  Hansberger is  Chairman of the  Board of Directors  and Chief Executive
Officer of Futura Corporation and  its several subsidiaries and affiliates.  Mr.
Hansberger  was a founder of Boise  Cascade Corporation and served as President,
Chief Executive Officer  and Chairman  of the Board  of Directors  from 1957  to
1972.  He currently serves as  a director of two  other publicly held companies,
T.J. International, Inc.  and MK  Gold Corporation, and  several privately  held
companies.
 
    Mr.  Mabry  served as  Executive Vice  President of  Owens-Corning Fiberglas
Corporation from 1986 until his retirement in 1990. Mr. Mabry was a Senior  Vice
President of Owens-Corning from 1980 to 1986. He served as Vice President of the
Owens-Corning  Insulation  Operating  Division from  1976  to 1980  and  as Vice
President of  the Owens-Corning  Home Building  Products Division  from 1969  to
1976.
 
    Mr.  Mellor served as the Executive  Vice President and Chief Administrative
Officer, and as  a director of,  Di Giorgio  Corporation from 1987  to 1990.  He
joined  Di Giorgio Corporation in 1976. Mr.  Mellor has been Of Counsel with the
law firm of Gibson, Dunn & Crutcher LLP from 1991 to the present.
 
    Mr. O'Neill  is the  founder  of O'Neill  Enterprises, Inc.,  a  residential
development  company, and has served as  its President since 1989. He previously
founded River Run  Development Company  in 1979,  which received  the Award  for
Excellence  from  the Urban  Land Institute  in 1990  for its  planned community
development of River Run in Boise, Idaho.  Mr. O'Neill has served as a  director
of  various  local and  national economic  and urban  development organizations,
including the MIT/Harvard  University Joint Center  for Urban Studies.  He is  a
member  of the  Urban Land Institute,  a director  of the Boise  Area Chamber of
Commerce, a trustee of Albertson College of Idaho, and is currently serving as a
director of one other publicly held company, Idaho Power Company.
 
                                       25
<PAGE>
                                  UNDERWRITING
 
    The names of the Underwriters of  the shares of Common Stock offered  hereby
and  the aggregate number of shares which  each has severally agreed to purchase
from the  Company,  subject  to  the  terms  and  conditions  specified  in  the
Underwriting Agreement, are as follows:
 
   
<TABLE>
<CAPTION>
UNDERWRITERS                                                                 NUMBER OF SHARES
- ---------------------------------------------------------------------------  -----------------
<S>                                                                          <C>
Dillon, Read & Co. Inc.....................................................         560,000
Piper Jaffray Inc..........................................................         560,000
Auerbach Pollak & Richardson Inc...........................................          20,000
Bear, Stearns & Co. Inc....................................................          50,000
Black & Company, Inc.......................................................          20,000
J.C. Bradford & Co.........................................................          30,000
Alex. Brown & Sons Incorporated............................................          50,000
Cleary Gull Reiland & McDevitt Inc.........................................          20,000
Dain Bosworth Incorporated.................................................          50,000
D.A. Davidson & Co. Incorporated...........................................          20,000
Donaldson, Lufkin & Jenrette Securities Corporation........................          50,000
Goldman, Sachs & Co........................................................          50,000
Hanifen, Imhoff Inc........................................................          20,000
Jensen Securities Co.......................................................          20,000
Ladenburg, Thalmann & Co. Inc..............................................          30,000
Lehman Brothers Inc........................................................          50,000
Merrill Lynch, Pierce, Fenner & Smith Incorporated.........................          50,000
Montgomery Securities......................................................          50,000
David A. Noyes & Company...................................................          20,000
Pacific Crest Securities Inc...............................................          20,000
Principal Financial Securities, Inc........................................          30,000
Ragen MacKenzie Incorporated...............................................          50,000
Robert W. Baird & Co. Incorporated.........................................          30,000
The Robinson-Humphrey Company, Inc.........................................          30,000
Salomon Brothers Inc.......................................................          50,000
Smith Barney Inc...........................................................          50,000
Wellington (H.G.) & Co. Inc................................................          20,000
                                                                                   --------
      Total................................................................       2,000,000
                                                                                   --------
                                                                                   --------
</TABLE>
    
 
    The Managing Underwriters are Dillon, Read & Co. Inc. and Piper Jaffray Inc.
 
    If  any  shares  of  Common  Stock  offered  hereby  are  purchased  by  the
Underwriters, all such shares will  be so purchased. The Underwriting  Agreement
contains   certain  provisions  whereby  if  any  Underwriter  defaults  in  its
obligation to  purchase  such  shares  and  the  aggregate  obligations  of  the
Underwriters  so defaulting do not exceed 10%  of the shares offered hereby, the
remaining Underwriters, or some of them, must assume such obligations.
 
   
    The shares of Common Stock offered hereby are being initially offered by the
several Underwriters for sale at the price  set forth on the cover page  hereof,
or  at such price  less a concession not  to exceed $0.64 per  share on sales to
certain dealers. The  Underwriters may allow,  and such dealers  may reallow,  a
concession  not to exceed $0.10 per share on sales to certain other dealers. The
offering of the shares  is made for  delivery when, as, and  if accepted by  the
Underwriters  and  subject to  prior sale  and  to withdrawal,  cancellation, or
modification of the offer without notice. The Underwriters reserve the right  to
reject  any order for the purchase of  the shares. After the shares are released
for sale  to the  public, the  public offering  price, the  concession, and  the
reallowance may be changed by the Managing Underwriters.
    
 
    The  Company has granted to the Underwriters  an option to purchase up to an
additional 300,000  shares of  Common Stock  on the  same terms  per share.  The
Underwriters  may exercise such option  on or before the  thirtieth day from the
date of the  public offering of  the shares  offered hereby, and  only to  cover
over-allotments of shares of
 
                                       26
<PAGE>
Common  Stock  offered  hereby. To  the  extent the  Underwriters  exercise such
option,  each  of  the  Underwriters  will  be  obligated,  subject  to  certain
conditions,  to purchase approximately the number of additional shares of Common
Stock proportionate to such Underwriter's initial commitment.
 
    The Company and its officers and  directors have agreed not to offer,  sell,
contract to sell, grant any option to sell, or otherwise dispose of, directly or
indirectly,  any  shares  of  Common Stock  or  securities  convertible  into or
exchangeable or  exercisable  for any  shares  of  Common Stock  or  permit  the
registration  of any shares  of Common Stock for  a period of  90 days after the
date of this Prospectus, without the prior written consent of Dillon, Read & Co.
Inc., except  that the  Company may,  without such  consent, (i)  grant  options
pursuant to the Company's director and employee benefit plans, (ii) register and
sell  shares of Common Stock pursuant to this Offering, (iii) issue Common Stock
pursuant to  the  exercise of  stock  options outstanding  on  the date  of  the
Prospectus  or issued pursuant to the foregoing clause (i) and (iv) issue Common
Stock and Series C Junior  Participating Cumulative Preferred Stock pursuant  to
its obligations under the Rights Plan.
 
    The  Company  has  agreed in  the  Underwriting Agreement  to  indemnify the
Underwriters  against  certain  liabilities,  including  liabilities  under  the
Securities  Act,  or to  contribute  to payments  that  the Underwriters  may be
required to make in respect thereof.
 
    Each  of  the  Managing  Underwriters  has,  from  time  to  time,  provided
investment  banking and  other financial advisory  services to  the Company, for
which each has received customary fees.
 
    In connection with  this Offering,  certain Underwriters  and selling  group
members  or their affiliates may engage in passive market making transactions in
the Common Stock on  the Nasdaq National Market  in accordance with Rule  10b-6A
under  the Securities  Exchange Act  of 1934,  as amended  (the "Exchange Act").
Passive market making consists  of, among other things,  displaying bids on  the
Nasdaq  limited by  the bid  prices of  independent market  makers and purchases
limited by such prices and effected in response to order flow. Net purchases  by
a  passive market maker on each day are limited to a specified percentage of the
passive market maker's average daily trading volume in the Common Stock during a
specified  prior  period  and  all  possible  market  making  activity  must  be
discontinued when such limit is reached. Passive market making may stabilize the
market  price of the  Common Stock at  a level above  that which might otherwise
prevail and, if commenced, may be discontinued at any time.
 
                                 LEGAL MATTERS
 
    The validity of  the issuance  of the Common  Stock offered  hereby will  be
passed  upon for  the Company  by Gibson,  Dunn &  Crutcher LLP,  San Francisco,
California. Certain legal matters related to  this Offering will be passed  upon
for  the  Underwriters by  Cahill Gordon  & Reindel,  a partnership  including a
professional corporation, New York,  New York. Robert E.  Mellor, a director  of
the  Company, is Of Counsel with  Gibson, Dunn & Crutcher LLP  and, as of May 1,
1996, owned 10,000  shares of the  Common Stock and  options to purchase  16,500
shares of the Common Stock.
 
                                    EXPERTS
 
   
    The financial statements and schedules included or incorporated by reference
in this Prospectus and elsewhere in the Registration Statement have been audited
by  Arthur Andersen LLP,  independent public accountants,  as indicated in their
reports with  respect thereto,  and are  included herein  in reliance  upon  the
authority  of said  firm as  experts in accounting  and auditing  in giving said
reports.
    
 
                             AVAILABLE INFORMATION
 
    The Company is subject to the reporting requirements of the Exchange Act and
in accordance therewith,  files annual and  quarterly reports, proxy  statements
and   other  information  with  the  Securities  and  Exchange  Commission  (the
"Commission"). Such  reports,  proxy statements  and  other information  may  be
inspected  and copied  at the Commission's  Public Reference  Section, 450 Fifth
Street, N.W., Room 1024, Washington, D.C. 20549, as well as at the  Commission's
Regional  Offices at 7 World Trade Center, 13th Floor, New York, New York 10048;
and 500 West Madison Street, Suite 1400, Chicago, Illinois 60661-2511. Copies of
such material can  be obtained  at prescribed  rates from  the Public  Reference
Section of the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549. The
 
                                       27
<PAGE>
Common Stock of the Company is quoted on the Nasdaq National Market. Reports and
other  information  concerning  the Company  may  be inspected  at  the National
Association of Securities Dealers, Inc. at 1735 K Street, N.W. Washington,  D.C.
20006.
 
    A  registration  statement on  Form  S-3 with  respect  to the  Common Stock
offered hereby (the "Registration Statement") has been filed with the Commission
under  the  Securities  Act.  This  Prospectus  does  not  contain  all  of  the
information  contained  in  such  Registration Statement  and  the  exhibits and
schedules thereto, certain portions of which  have been omitted pursuant to  the
rules and regulations of the Commission. For further information with respect to
the  Company  and the  Common Stock  offered  hereby, reference  is made  to the
Registration Statement  and  the  exhibits  and  schedules  thereto.  Statements
contained in this Prospectus regarding the contents of any contract or any other
documents  are  not necessarily  complete and,  in  each instance,  reference is
hereby made to the copy of such contract or document filed as an exhibit to  the
Registration  Statement. The Registration Statement, including exhibits thereto,
may be  inspected  without  charge  at  the  Commission's  principal  office  in
Washington, D.C., and copies of all or any part thereof may be obtained from the
Public  Reference Section, Securities and Exchange Commission, Washington, D.C.,
20549, upon payment of the prescribed fees.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The following documents, filed or to be filed with the Commission under  the
Exchange Act are hereby incorporated by reference into this Prospectus:
 
    (a) The Company's Annual Report on Form 10-K for the year ended December 31,
1995;
 
    (b)  The sections  entitled "Executive  Compensation and  Other Information"
(other than  the  Compensation  Committee  Report  on  Executive  Compensation),
"Certain  Relationships  and  Other  Transactions"  and  "Security  Ownership of
Certain Beneficial Owners" contained  in the Company's  Proxy Statement for  its
Annual Meeting of Stockholders on April 30, 1996;
 
    (c)  The Company's Quarterly Report on Form 10-Q for the quarter ended March
31, 1996, including all material incorporated by reference therein;
 
    (d) The Company's Current Report on  Form 8-K, filed with the Commission  on
April  12,  1995,  and the  amendment  thereto  on Form  8-K/A,  filed  with the
Commission on May 4, 1995.
 
    (e)  The  description  of  the  Common  Stock  contained  in  the  Company's
Registration  Statement on Form 8-A (No.  0-19335), filed with the Commission on
June 6, 1991.
 
    (f) The  description of  certain rights  attaching to  the Common  Stock  to
purchase  Series C Junior Participating  Cumulative Preferred Stock contained in
the Company's Registration Statement on Form  8-A (No. 0-19335), filed with  the
Commission on August 3, 1993.
 
    All  documents filed by the Company pursuant to Sections 13(a), 13(c), 14 or
15(d) of the Exchange  Act after the  date of this Prospectus  and prior to  the
termination  of this  Offering shall be  deemed to be  incorporated by reference
herein and to be a  part hereof from the date  of filing of such documents.  Any
statement  contained in this Prospectus or  in a document incorporated or deemed
to be  incorporated  by reference  herein  shall be  deemed  to be  modified  or
superseded  for  purposes of  this  Prospectus to  the  extent that  a statement
contained herein  or in  any subsequently  filed document  which also  is or  is
deemed  to  be  incorporated by  reference  herein modifies  or  supersedes such
statement. Any such  statement so modified  or superseded shall  not be  deemed,
except as so modified or superseded, to constitute a part of this Prospectus.
 
    The  Company  will  provide without  charge  to each  person,  including any
beneficial owner, to  whom this Prospectus  is delivered, upon  written or  oral
request  of such person, a copy  of any and all of  the documents that have been
incorporated by  reference  herein (not  including  exhibits to  such  documents
unless  such exhibits are specifically incorporated  by reference herein or into
such  documents).  Such  request  may  be  directed  to  BMC  West  Corporation,
Attention:  Ellis C.  Goebel, 1475  Tyrell Lane,  Boise, Idaho  83706, telephone
(208) 331-4410.
 
                                       28
<PAGE>
                              BMC WEST CORPORATION
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
Report of Independent Public Accountants...................................................................        F-2
Audited Financial Statements:
  Statements of Income for the years ended December 28, 1993 and December 31, 1994 and 1995................        F-3
  Balance Sheets at December 31, 1994 and 1995.............................................................        F-4
  Statements of Stockholders' Equity for the years ended December 28, 1993 and December 31, 1994 and
   1995....................................................................................................        F-5
  Statements of Cash Flows for the years ended December 28, 1993 and December 31, 1994
   and 1995................................................................................................        F-6
  Notes to the Financial Statements........................................................................        F-7
 
Unaudited Financial Statements:
  Unaudited Condensed Statements of Income for the three months ended March 31, 1995
   and 1996................................................................................................       F-15
  Condensed Balance Sheets at December 31, 1995 and March 31, 1996 (unaudited).............................       F-16
  Unaudited Condensed Statements of Cash Flows for the three months ended March 31, 1995
   and 1996................................................................................................       F-17
  Notes to the Unaudited Condensed Financial Statements....................................................       F-18
</TABLE>
 
                                      F-1
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To the Stockholders of
BMC West Corporation:
 
    We  have audited the accompanying balance  sheets of BMC West Corporation (a
Delaware corporation)  as  of  December  31, 1994  and  1995,  and  the  related
statements  of income, stockholders'  equity and cash flows  for the years ended
December 28, 1993 and December 31, 1994 and 1995. These financial statements are
the responsibility of the Company's management. Our responsibility is to express
an opinion on these financial statements based on our audits.
 
    We conducted  our  audits in  accordance  with generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts and disclosures in the financial statements. An audit also includes
assessing the  accounting  principles used  and  significant estimates  made  by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In our opinion, the financial  statements referred to above present  fairly,
in  all material respects, the financial position  of BMC West Corporation as of
December 31, 1994 and 1995, and the results of its operations and cash flows for
the years ended December 28, 1993 and  December 31, 1994 and 1995 in  conformity
with generally accepted accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
Boise, Idaho
January 30, 1996
 
                                      F-2
<PAGE>
                              BMC WEST CORPORATION
                              STATEMENTS OF INCOME
 
      FOR THE YEARS ENDED DECEMBER 28, 1993 AND DECEMBER 31, 1994 AND 1995
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                    YEAR ENDED DECEMBER
                                                                          ----------------------------------------
                                                                              1993          1994          1995
                                                                          ------------  ------------  ------------
<S>                                                                       <C>           <C>           <C>
Net sales...............................................................  $    399,597  $    547,109  $    630,201
Cost of sales...........................................................       315,693       427,951       492,028
                                                                          ------------  ------------  ------------
Gross profit............................................................        83,904       119,158       138,173
Selling, general and administrative expense.............................        65,619        91,203       116,353
Other income, net.......................................................           948         1,529         1,601
                                                                          ------------  ------------  ------------
Income from operations..................................................        19,233        29,484        23,421
Interest expense........................................................         4,554         6,486        10,746
                                                                          ------------  ------------  ------------
Income before income taxes..............................................        14,679        22,998        12,675
Income taxes............................................................         5,888         8,739         4,910
                                                                          ------------  ------------  ------------
Net income..............................................................  $      8,791  $     14,259  $      7,765
                                                                          ------------  ------------  ------------
                                                                          ------------  ------------  ------------
Net income per common and common equivalent share.......................  $       1.14  $       1.62  $       0.79
                                                                          ------------  ------------  ------------
                                                                          ------------  ------------  ------------
Weighted average number of common and common equivalent shares
 outstanding............................................................     7,707,986     8,798,374     9,751,547
                                                                          ------------  ------------  ------------
                                                                          ------------  ------------  ------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-3
<PAGE>
                              BMC WEST CORPORATION
                                 BALANCE SHEETS
                         AT DECEMBER 31, 1994 AND 1995
                             (DOLLARS IN THOUSANDS)
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                                             DECEMBER 31,
                                                                                     ----------------------------
                                                                                         1994           1995
                                                                                     -------------  -------------
<S>                                                                                  <C>            <C>
Current assets
  Cash.............................................................................   $     5,173    $     6,004
  Receivables, net.................................................................        53,825         65,820
  Inventories......................................................................        65,910         66,506
  Deferred income tax benefit......................................................         1,307          1,668
  Prepaid expenses.................................................................         1,411          1,275
                                                                                     -------------  -------------
      Total current assets.........................................................       127,626        141,273
Property and equipment, net........................................................        67,684         96,403
Deferred loan costs................................................................         2,247          2,440
Goodwill, net......................................................................        19,354         18,421
Other..............................................................................         5,539          6,433
                                                                                     -------------  -------------
      Total assets.................................................................   $   222,450    $   264,970
                                                                                     -------------  -------------
                                                                                     -------------  -------------
 
                                      LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities
  Current portion of long-term debt................................................   $        31    $       129
  Current redemption requirement on Class B preferred stock........................         1,000          1,000
  Notes due for acquisitions.......................................................        10,665             --
  Accounts payable.................................................................        30,638         29,383
  Accrued compensation expense.....................................................         4,897          4,205
  Sales tax payable................................................................         2,104          2,657
  Other accrued expenses...........................................................         2,090          3,703
                                                                                     -------------  -------------
      Total current liabilities....................................................        51,425         41,077
Long-term debt, net of current portion.............................................        76,411        121,120
Deferred income taxes..............................................................         3,360          3,161
Other long-term liabilities........................................................         1,327          1,725
Class B preferred stock, mandatory redemption requirements of $1,000,000 in 1996
 and $2,000,000 in 1997............................................................         2,925          1,960
Stockholders' equity
  Common stock, $0.001 par value, 20,000,000 shares authorized; 9,112,417 and
   9,483,229 shares outstanding at December 31, 1994 and 1995, respectively........             9              9
  Additional paid-in capital.......................................................        57,994         59,188
  Retained earnings................................................................        28,999         36,730
                                                                                     -------------  -------------
      Total stockholders' equity...................................................        87,002         95,927
                                                                                     -------------  -------------
      Total liabilities, redeemable preferred stock and stockholders' equity.......   $   222,450    $   264,970
                                                                                     -------------  -------------
                                                                                     -------------  -------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-4
<PAGE>
                              BMC WEST CORPORATION
                       STATEMENTS OF STOCKHOLDERS' EQUITY
      FOR THE YEARS ENDED DECEMBER 28, 1993 AND DECEMBER 31, 1994 AND 1995
                             (AMOUNTS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                    COMMON STOCK        ADDITIONAL
                                                              ------------------------    PAID-IN     RETAINED
                                                                SHARES       AMOUNT       CAPITAL     EARNINGS      TOTAL
                                                              -----------  -----------  -----------  -----------  ---------
<S>                                                           <C>          <C>          <C>          <C>          <C>
Balance, December 28, 1992..................................       4,927    $       5    $  27,874    $   6,020   $  33,899
 
Net income..................................................          --           --           --        8,791       8,791
Accretion of redeemable preferred stock.....................          --           --           --          (34)        (34)
Accrual of stock option compensation........................          --           --           79           --          79
Stock issued for acquisition................................         300           --        6,757           --       6,757
Stock options exercised.....................................           5           --           18           --          18
Three-for-two stock split...................................       2,616            3           --           (3)         --
                                                                   -----           --   -----------  -----------  ---------
Balance, December 28, 1993..................................       7,848            8       34,728       14,774      49,510
 
Net income..................................................          --           --           --       14,259      14,259
Accretion of redeemable preferred stock.....................          --           --           --          (34)        (34)
Accrual of stock option compensation........................          --           --          216           --         216
Stock issued for acquisitions...............................       1,242            1       22,955           --      22,955
Stock options exercised.....................................          22           --           95           --          96
                                                                   -----           --   -----------  -----------  ---------
Balance, December 31, 1994..................................       9,112            9       57,994       28,999      87,002
 
Net income..................................................          --           --           --        7,765       7,765
Accretion of redeemable preferred stock.....................          --           --           --          (34)        (34)
Accrual of stock option compensation........................          --           --          213           --         213
Stock issued for acquisitions...............................         365           --          938           --         938
Stock options exercised.....................................           6           --           43           --          43
                                                                   -----           --   -----------  -----------  ---------
Balance, December 31, 1995..................................       9,483    $       9    $  59,188    $  36,730   $  95,927
                                                                   -----           --   -----------  -----------  ---------
                                                                   -----           --   -----------  -----------  ---------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-5
<PAGE>
                              BMC WEST CORPORATION
                            STATEMENTS OF CASH FLOWS
 
      FOR THE YEARS ENDED DECEMBER 28, 1993 AND DECEMBER 31, 1994 AND 1995
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                      YEAR ENDED DECEMBER
                                                                             -------------------------------------
                                                                                1993         1994         1995
                                                                             -----------  -----------  -----------
<S>                                                                          <C>          <C>          <C>
Cash flows from operating activities
  Net income...............................................................  $     8,791  $    14,259  $     7,765
  Adjustments to reconcile net income to cash provided by operating
   activities:
    Depreciation and amortization..........................................        3,474        5,551        9,192
    Deferred income taxes..................................................         (527)         135         (361)
    (Gain) loss on sale of assets..........................................           60         (133)         (40)
    Stock option compensation..............................................           79          216          213
    Provision for other long-term liabilities..............................          995          332          398
  Changes in working capital items net of effects of acquisitions and
   divestitures............................................................       (7,905)        (766)       5,099
  Other....................................................................          512       (1,636)      (1,007)
                                                                             -----------  -----------  -----------
        Net cash provided by operating activities..........................        5,479       17,958       21,259
                                                                             -----------  -----------  -----------
Cash flows from investing activities
  Purchase of property and equipment.......................................       (8,649)     (15,072)     (16,856)
  Payment for acquisitions.................................................      (12,347)     (21,515)     (36,363)
  Sale of property and equipment...........................................          125          285          400
                                                                             -----------  -----------  -----------
        Net cash used in investing activities..............................      (20,871)     (36,302)     (52,819)
                                                                             -----------  -----------  -----------
Cash flows from financing activities
  Issuance of debt.........................................................       25,000           --       50,000
  Principal payments on debt...............................................       (5,402)      (1,081)     (11,665)
  Borrowings under revolving credit agreements.............................      112,460      186,144      223,360
  Repayments under revolving credit agreements.............................     (112,481)    (162,874)    (228,470)
  Acquired obligations retired.............................................       (2,108)          --           --
  Financing costs..........................................................       (1,630)        (208)        (795)
  Additional capital lease obligations.....................................          454           --           --
  Capital lease payments...................................................          (26)        (136)         (83)
  Other....................................................................           18           95           44
                                                                             -----------  -----------  -----------
        Net cash provided by financing activities..........................       16,285       21,940       32,391
                                                                             -----------  -----------  -----------
  Net increase in cash.....................................................          893        3,596          831
  Cash, beginning of period................................................          684        1,577        5,173
                                                                             -----------  -----------  -----------
  Cash, end of period......................................................  $     1,577  $     5,173  $     6,004
                                                                             -----------  -----------  -----------
                                                                             -----------  -----------  -----------
 
Supplemental cash flow information
  Cash paid during the year for--
    Interest, net of interest capitalized..................................  $     4,008  $     6,358  $     9,238
    Income taxes...........................................................        6,247       10,659        3,224
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-6
<PAGE>
                              BMC WEST CORPORATION
                       NOTES TO THE FINANCIAL STATEMENTS
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    NATURE  OF OPERATIONS.   BMC West  Corporation is a  regional distributor of
building  materials  in  the  western   United  States,  selling  primarily   to
professional  contractors, as  well as to  advanced, service-oriented consumers.
The Company  also  conducts  value-added activities  which  include  pre-hanging
doors,  fabricating roof trusses, pre-assembling  windows and pre-cutting lumber
to meet customer specifications. The  Company has 52 building materials  centers
located in Arizona, California, Colorado, Idaho, Montana, Nevada, Oregon, Texas,
Utah and Washington.
 
    CONSOLIDATION.     During  1993,  the  Company  dissolved  its  wholly-owned
subsidiary and  merged all  the  subsidiary's assets  and liabilities  into  the
Company's  accounts. The financial statements  for all periods presented include
the accounts  of the  Company and  its subsidiary  to date  of dissolution.  All
intercompany transactions and balances have been eliminated.
 
    USE  OF ESTIMATES.   The preparation  of financial  statements in conformity
with generally  accepted  accounting  principles  requires  management  to  make
estimates  and  assumptions  that  affect the  reported  amounts  of  assets and
liabilities at the date of the financial statements and the reported amounts  of
revenues and expenses during the reporting period.
 
    CHANGE IN YEAR-END.  To facilitate industry comparisons, the Company elected
in  1994 to  change its fiscal  year-end from  December 28 to  December 31. This
change did not  have a  material impact on  the comparability  of the  Company's
results of operations or cash flows for any of the three years presented.
 
    STOCK  SPLIT.  In February 1994,  the Company declared a three-for-two stock
split, effected  in  the  form of  a  stock  dividend, paid  March  4,  1994  to
shareholders  of  record as  of February  25,  1994. All  per share  amounts and
weighted average number of common and common equivalent shares presented in this
Prospectus reflect  the effect  of the  stock split.  The stock  split has  been
reflected as a 1993 transaction in the statement of stockholders' equity.
 
    ACQUISITIONS.  Businesses acquired in 1993, 1994 and 1995 were accounted for
using the purchase method of accounting. Under this accounting method, the value
of  the  consideration  was allocated  to  the assets  acquired  and liabilities
assumed based on the estimated fair values at date of acquisition. Any excess of
the purchase price over the estimated fair value of the net assets acquired  and
liabilities  assumed was recorded as goodwill. Operating results of the acquired
businesses are included in the statements of income from date of acquisition.
 
    NET INCOME PER COMMON SHARE.  Net  income per common share is determined  by
dividing net income, after deducting the accretion of the discount on redeemable
preferred stock, by the weighted average of common and common equivalent shares.
The  weighted average  number of  common and  common equivalent  shares includes
shares  issued,  shares  issuable  under  dilutive  stock  options  and   shares
contingently issuable in connection with acquisitions. The contingently issuable
shares  are equivalent  to the number  of additional shares  (18,372) that would
have been issued  at December 31,  1995 as if  that were the  date on which  the
stock price guarantees were measured.
 
    Fully  diluted net income per share is not presented as the dilution was not
significant in 1993 and 1995 and not dilutive in 1994.
 
    INCOME TAXES.   Deferred  income  taxes are  provided to  reflect  temporary
differences  between the financial and tax bases of assets and liabilities using
presently enacted tax rates and laws.
 
    INVENTORIES.  Inventories consist  principally of merchandise purchased  for
resale and are stated at the lower of average cost or market.
 
    PROPERTY  AND EQUIPMENT.  Property and equipment are recorded at cost. Major
additions and improvements are capitalized  while maintenance and repairs  which
do not increase the useful life of the property are expensed as incurred.
 
                                      F-7
<PAGE>
                              BMC WEST CORPORATION
                 NOTES TO THE FINANCIAL STATEMENTS (CONTINUED)
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    The net book value of property sold or retired is removed from the asset and
related  depreciation accounts,  and the  net gain  or loss  is included  in the
determination of income or loss.
 
    The provision for depreciation is  computed using the straight-line  method.
The  estimated  useful  lives are  fifteen  to  thirty years  for  buildings and
improvements, seven to ten years for  machinery and fixtures and three to  seven
years for handling and delivery equipment.
 
    DEFERRED  LOAN  COSTS.   Loan  costs are  capitalized  upon the  issuance of
long-term debt  and  amortized over  the  life of  the  related debt  using  the
effective  interest rate  method. Amounts  capitalized were  $1,630,000 in 1993,
$208,000 in 1994 and $794,000 in 1995. Interest expense includes amortization of
deferred loan costs of $321,000 in 1993, $530,000 in 1994 and $602,000 in 1995.
 
    GOODWILL.  Goodwill  is amortized on  a straight-line basis  over 30  years.
Accumulated  amortization  of goodwill  was $221,047  at  December 31,  1994 and
$941,000 at December 31, 1995.
 
    Annually,  the  Company   reviews  the  recoverability   of  goodwill.   The
measurement  of possible impairment is based primarily on the ability to recover
the balance of  the goodwill  from expected future  operating cash  flows on  an
undiscounted  basis.  In management's  opinion,  no such  impairment  existed at
December 31, 1995.
 
    OTHER ASSETS.  The majority of other assets consist of non-compete covenants
arising from acquisitions and investments in cooperative supplier organizations.
The non-compete  covenants are  amortized over  the life  of related  agreements
(three to five years).
 
    CASH  AND CASH EQUIVALENTS.  For purpose of the statement of cash flows, the
Company considers all  highly liquid  debt instruments  that had  a maturity  of
three months or less at the date of purchase to be cash equivalents.
 
    FINANCIAL  ACCOUNTING STANDARDS BOARD (FASB) STATEMENTS.   In 1995, the FASB
issued Statement 121, ACCOUNTING FOR THE IMPAIRMENT OF LONG-LIVED ASSETS AND FOR
LONG-LIVED ASSETS TO BE  DISPOSED OF. The Company  will adopt this statement  in
1996.   The  FASB  also   issued  Statement  123,   ACCOUNTING  FOR  STOCK-BASED
COMPENSATION.  The  Company  is  not  required  to  change  its  accounting  for
stock-based  compensation,  but  will  make additional  disclosure  in  its 1996
financial statements. Neither statement is expected to have any material  effect
on the Company's financial position or results of operations.
 
2.  ACQUISITIONS
    In  1995,  the Company  completed two  acquisitions involving  four building
materials centers. These centers are located in Abilene, New Braunfels, and  two
in Austin, Texas. The aggregate purchase price for these centers was $36,363,000
consisting entirely of cash.
 
    In  1994, the  Company completed eight  acquisitions involving a  net of ten
building materials  centers. These  centers  are located  in Kileen  and  Hurst,
Texas;  Phoenix, Arizona; Grand  Junction, Denver, Greeley,  Pueblo and Colorado
Springs, Colorado; and Issaquah, Kent  and Vancouver, Washington. The  aggregate
purchase  price for these centers was  $55,135,000, consisting of $21,515,000 in
cash, 1,242,133  shares of  the  Company's common  stock  and notes  payable  of
$10,665,000  plus the assumption of certain liabilities. The common stock issued
in connection with certain of the acquisitions was guaranteed by the Company  to
retain  a value of  between $20.00 and  $25.25 per share  by specified dates. In
1995, 364,975 shares were issued in connection with prior year acquisitions.
 
    In 1993, the Company completed three acquisitions, involving seven  building
materials  centers. Five of these  centers are located in  central Texas, one in
Great Falls, Montana and one in Twin Falls, Idaho. The aggregate purchase  price
for these centers was $19,104,000, consisting of $12,347,000 in cash and 300,000
shares of the Company's common stock plus the assumption of certain liabilities.
 
                                      F-8
<PAGE>
                              BMC WEST CORPORATION
                 NOTES TO THE FINANCIAL STATEMENTS (CONTINUED)
 
2.  ACQUISITIONS (CONTINUED)
    The  following summarized unaudited  pro forma results  of operations assume
the acquisitions occurred as of  the beginning of 1994.  The pro forma data  has
been  prepared  for  comparative  purposes  only.  It  does  not  purport  to be
indicative of  the  results of  operations  that  would have  resulted  had  the
acquisitions  been consummated at the beginning  of the years presented, or that
may occur in the future (in thousands, except per share amounts):
 
<TABLE>
<CAPTION>
                                                                                     1994        1995
                                                                                  ----------  ----------
<S>                                                                               <C>         <C>
Net sales.......................................................................  $  715,478  $  651,976
Net income......................................................................      19,674       8,001
Net income per share............................................................        2.07        0.82
</TABLE>
 
3.  LONG-TERM DEBT
    Long-term debt consisted of the following at December 31 (in thousands):
 
<TABLE>
<CAPTION>
                                                                                     1994        1995
                                                                                   ---------  ----------
<S>                                                                                <C>        <C>
Revolving credit agreement borrowings............................................  $  31,230  $   26,120
8.10% unsecured senior notes.....................................................     25,000      25,000
9.18% unsecured senior notes.....................................................         --      50,000
10% unsecured senior subordinated notes..........................................     20,000      20,000
Capital lease obligations........................................................        212         129
                                                                                   ---------  ----------
                                                                                      76,442     121,249
Less current portion.............................................................         31         129
                                                                                   ---------  ----------
                                                                                   $  76,411  $  121,120
                                                                                   ---------  ----------
                                                                                   ---------  ----------
</TABLE>
 
    In 1995,  the  Company's  borrowing  capacity  under  its  revolving  credit
agreement  was increased  from $60,000,000  to $70,000,000,  limited by eligible
receivables and inventories. Also, the agreement's expiration date was  extended
from 1996 to 1998. Interest is due monthly at prime to prime plus 0.25% or LIBOR
plus  0.625% to 1.625%. A fee of .25% - .375% per annum is charged on the unused
portion of the  loan commitment.  At year-end,  the Company  had $43,880,000  of
unborrowed capacity under this agreement.
 
    The  8.10% unsecured  senior notes issued  in 1993  require annual principal
payments beginning in 1998 through 2000. The notes may be redeemed, in whole  or
in  part, at the option of the Company at any time, at the principal amount plus
accrued interest and a make-whole payment. The make-whole payment is due only if
the interest rate (as measured  by agreement with the  creditor) at the date  of
redemption is less than 8.10%. Interest is payable semi-annually on April 30 and
October  31. In connection with the extension of the revolving credit agreement,
the collateral for the 8.10% senior notes was eliminated.
 
    In March 1995,  the Company  issued $50  million of  9.18% unsecured  senior
notes due in 2006. The notes require annual principal payments beginning in 2001
through  2006. The notes may be redeemed, in  whole or in part, at the option of
the Company at any  time, at the  principal amount plus  accrued interest and  a
make-whole  payment. The make-whole payment is due only if the interest rate (as
measured by agreement with the creditor) at the date of redemption is less  than
9.18%. Interest is payable semi-annually on April 30 and October 31.
 
    The  10% senior subordinated notes  are due in 1999,  but may be redeemed in
whole or in part, at the option of  the Company, at any time after December  14,
1995,  at  the  principal  amount plus  accrued  interest.  Interest  is payable
monthly.
 
    The scheduled principal  payments of  long-term debt are  $129,000 in  1996,
$-0-  in 1997, $34,453,000 in 1998, $28,333,000  in 1999, $8,334,000 in 2000 and
$50,000,000 thereafter.
 
    The agreements related to the  above borrowings contain financial  covenants
and  restrictions which  require the  Company to  maintain a  minimum net worth,
debt-service  coverage,  debt-to-equity  ratio  and  current  ratio,  and  limit
additional  debt, stock repurchases, dividend  payments, capital asset additions
and retirements, liens on assets,
 
                                      F-9
<PAGE>
                              BMC WEST CORPORATION
                 NOTES TO THE FINANCIAL STATEMENTS (CONTINUED)
 
3.  LONG-TERM DEBT (CONTINUED)
stock ownership  changes and  business combinations.  Currently, $15,408,000  of
retained  earnings is available for the  payment of common dividends under these
agreements of which a maximum of $1,941,000 may be paid in fiscal year 1996.
 
4.  CLASS B PREFERRED STOCK
    In 1987,  the  Company  authorized  and issued  50,000  shares  of  Class  B
preferred stock with a total mandatory redemption requirement of $5,000,000, due
$1,000,000  annually through  1996 and  $2,000,000 in  1997. As  of December 31,
1995, 30,000 shares of Class B preferred stock remain outstanding.
 
    Class B preferred stock has a  preference in liquidation of $100 per  share,
$3,000,000  in the  aggregate at December  31, 1995. The  difference between the
carrying value of the preferred stock and its redemption value is being added to
the preferred  stock  account ratably  to  1997  through a  charge  to  retained
earnings.
 
5.  INCOME TAXES
    Income taxes for the years ended December 28, 1993 and December 31, 1994 and
1995 consisted of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                               1993       1994       1995
                                                                             ---------  ---------  ---------
<S>                                                                          <C>        <C>        <C>
Current
  Federal..................................................................  $   5,548  $   7,710  $   4,648
  State....................................................................        867      1,156        727
                                                                             ---------  ---------  ---------
                                                                                 6,415      8,866      5,375
                                                                             ---------  ---------  ---------
Deferred
  Federal..................................................................       (469)      (110)      (404)
  State....................................................................        (58)       (17)       (61)
                                                                             ---------  ---------  ---------
                                                                                  (527)      (127)      (465)
                                                                             ---------  ---------  ---------
                                                                             $   5,888  $   8,739  $   4,910
                                                                             ---------  ---------  ---------
                                                                             ---------  ---------  ---------
</TABLE>
 
    A  reconciliation  of the  statutory  Federal income  tax  rate to  the rate
provided in the statements of income follows:
 
<TABLE>
<CAPTION>
                                                                                  1993        1994        1995
                                                                               ----------  ----------  ----------
<S>                                                                            <C>         <C>         <C>
Statutory rate...............................................................       34.4%       35.0%       35.0%
State income taxes...........................................................        3.5         3.3         3.3
Other........................................................................        2.2         (.3)         .4
                                                                                     ---         ---         ---
                                                                                    40.1%       38.0%       38.7%
                                                                                     ---         ---         ---
                                                                                     ---         ---         ---
</TABLE>
 
                                      F-10
<PAGE>
                              BMC WEST CORPORATION
                 NOTES TO THE FINANCIAL STATEMENTS (CONTINUED)
 
5.  INCOME TAXES (CONTINUED)
    The components of deferred income  taxes included in the Company's  year-end
Balance Sheets were as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                                       1994       1995
                                                                                     ---------  ---------
<S>                                                                                  <C>        <C>
Deferred tax assets
  Tax basis in excess of book basis of acquired assets.............................  $     877  $     877
  Inventories, tax in excess of book basis.........................................      1,169      1,392
  Reserves not yet deductible for tax..............................................        938      1,099
  Other............................................................................        270        716
                                                                                     ---------  ---------
    Total deferred tax assets......................................................      3,254      4,084
    Less valuation allowance.......................................................       (877)      (877)
                                                                                     ---------  ---------
    Net deferred tax assets........................................................      2,377      3,207
                                                                                     ---------  ---------
Deferred tax liabilities
  Tax in excess of book depreciation...............................................      3,910      4,105
  Deferred costs deducted for taxes................................................        520        595
                                                                                     ---------  ---------
    Total deferred tax liabilities.................................................      4,430      4,700
                                                                                     ---------  ---------
                                                                                     $  (2,053) $  (1,493)
                                                                                     ---------  ---------
                                                                                     ---------  ---------
Classified as
  Deferred income tax benefit (current assets).....................................  $   1,307  $   1,668
  Deferred income taxes (long-term liabilities)....................................     (3,360)    (3,161)
                                                                                     ---------  ---------
                                                                                     $  (2,053) $  (1,493)
                                                                                     ---------  ---------
                                                                                     ---------  ---------
</TABLE>
 
    The  valuation allowance relates to the difference  in tax and book basis of
the land acquired in conjunction with the initial acquisition of the Company.
 
6.  STOCKHOLDERS' EQUITY
    Under the shareholder rights  plan adopted in July  1993, holders of  common
stock  received a distribution  of one right  to purchase common  stock for each
common share held. The rights will generally become exercisable ten days after a
person or group acquires 15% of  the Company's outstanding voting securities  or
ten business days after a person or group commences or announces an intention to
commence  a tender or exchange offer that could result in the acquisition of 15%
of these  securities. Ten  days  after a  person acquires  15%  or more  of  the
Company's  outstanding voting securities (unless this time period is extended by
the board of  directors) each right  would, subject to  certain adjustments  and
alternatives, entitle the rightholder to purchase common stock of the Company or
the  acquiring company having a market value  of twice the $33.33 exercise price
of the  right (except  that the  acquiring  person or  group and  other  related
holders  would not  be able  to purchase  common stock  of the  company on these
terms). The rights  are nonvoting, expire  in 2003  and may be  redeemed by  the
Company  at a price of two-thirds  of a cent per right  at any time prior to the
tenth day after  an individual  or group acquired  15% of  the Company's  voting
stock,  unless extended.  Additional details  are set  forth in  the Rights Plan
filed with the Securities and Exchange Commission on August 3, 1993.
 
                                      F-11
<PAGE>
                              BMC WEST CORPORATION
                 NOTES TO THE FINANCIAL STATEMENTS (CONTINUED)
 
6.  STOCKHOLDERS' EQUITY (CONTINUED)
    The Company has various plans, all approved by the shareholders, under which
the Compensation  Committee of  the  Board of  Directors  may grant  options  to
purchase  common stock  to employees, officers  and directors.  The options vest
over various periods up to ten years. Information relating to all common  shares
under option follows:
 
<TABLE>
<CAPTION>
                                                          1993             1994             1995
                                                     ---------------  ---------------  ---------------
<S>                                                  <C>              <C>              <C>
Activity for year--
  Outstanding at beginning of year.................          343,533          427,241          472,482
  Granted..........................................          101,414           88,415           79,385
  Exercised........................................           (8,601)         (21,410)          (5,837)
  Forfeited........................................           (9,105)         (21,764)          (3,744)
                                                     ---------------  ---------------  ---------------
    Outstanding at end of year.....................          427,241          472,482          542,286
                                                     ---------------  ---------------  ---------------
                                                     ---------------  ---------------  ---------------
At year-end--
  Exercisable......................................          209,304          377,204          443,818
  Shares reserved..................................          981,399          959,989          954,152
                                                     ---------------  ---------------  ---------------
                                                     ---------------  ---------------  ---------------
Exercise price per share
  Options granted..................................   $8.67 - 16.17   $17.00 - 29.75   $13.50 - 14.25
  Options exercised................................   1.21 -  5.67     1.21 - 16.17     1.21 - 16.17
  Options outstanding..............................   1.21 -  5.67     1.21 - 29.75     1.21 - 29.75
</TABLE>
 
    Some of the options were granted at exercise prices below fair market value.
The   difference  is  being  recognized  ratably  over  the  vesting  period  as
compensation expense and was $79,000 in  1993, $216,000 in 1994 and $213,000  in
1995.  At December 31, 1995, options  to purchase 42,887 remain outstanding that
were granted at less than fair market  value. All other options were granted  at
the fair market value of the underlying common stock on the date of grant.
 
7.  RETIREMENT PLANS
    The  Company has a Savings and Retirement  Plan for its salaried and certain
of its  hourly  employees  whereby  the  eligible  employees  may  contribute  a
percentage  of their salaries to  a trust, i.e. a  401(k) plan. The Company also
makes contributions to the trust based on a percentage of the contributions made
by the participating employees. The Company's contributions are charged  against
operations and were $343,000 in 1993, $544,000 in 1994 and $703,000 in 1995.
 
    In 1993, the Company established a supplemental retirement plan for selected
key  management  employees  and directors.  The  cost  is based  on  the Company
achieving certain operating earnings levels. The Company charged operations  for
$377,000  in 1993, $597,000 in 1994 and  $414,000 in 1995 pursuant to this plan.
In 1994, the Company purchased company-owned life insurance on the  participants
in  order to have a funding mechanism for this plan. Retirement payments will be
paid to the participants or their  beneficiary over a 15-year period  subsequent
to retirement or death.
 
    The  Company  does not  provide any  other  postretirement benefits  for its
employees.
 
8.  RELATED PARTY TRANSACTIONS
    The Company pays a management fee to MDC Management Company (MDC), of  which
the  Chairman of the Company  is a managing partner.  These management fees were
$195,000 in 1993 and 1994 and $155,000 in 1995.
 
                                      F-12
<PAGE>
                              BMC WEST CORPORATION
                 NOTES TO THE FINANCIAL STATEMENTS (Continued)
 
9.  COMMITMENTS AND CONTINGENCIES
 
    OPERATING  LEASES.   The Company leases  real property,  vehicles and office
equipment under  operating  leases.  Rental  expense  was  $1,806,000  in  1993,
$2,496,000   in  1994  and  $3,871,000  in  1995.  Certain  of  the  leases  are
noncancellable and  have minimum  lease payment  requirements of  $3,067,000  in
1996, $2,718,000 in 1997, $1,725,000 in 1998, $1,143,000 in 1999 and $729,000 in
2000.
 
    LEGAL  PROCEEDINGS.  The  Company is involved in  litigation and other legal
matters arising in the normal course of business. In the opinion of  management,
the Company's recovery or liability, if any, under any of these matters will not
have a material effect on the Company's financial position, liquidity or results
of operations.
 
    CONCENTRATIONS  OF  CREDIT  RISK.   The  Company  sells  building materials,
primarily to professional contractors, as well as to advanced, service  oriented
consumers  through  its 52  building materials  centers  located in  ten western
states. No  one customer  exceeds 2%  of net  sales. Because  the customers  are
dispersed throughout the Company's various markets, the Company's credit risk to
any  one customer  or state economy  is not considered  significant. The Company
performs on-going credit evaluations of its customers and provides reserves  for
potential losses.
 
10. OTHER DATA
    Other income consisted of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                        1993       1994        1995
                                                                      ---------  ---------  ----------
<S>                                                                   <C>        <C>        <C>
Interest income, primarily from delinquent accounts receivable......  $     863  $   1,159  $    1,251
Gain (loss) on sale of assets.......................................        (79)       133          40
Other...............................................................        164        237         310
                                                                      ---------  ---------  ----------
                                                                      $     948  $   1,529  $    1,601
                                                                      ---------  ---------  ----------
                                                                      ---------  ---------  ----------
</TABLE>
 
    Receivables consisted of the following at December 31 (in thousands):
 
<TABLE>
<CAPTION>
                                                                                     1994       1995
                                                                                  ----------  ---------
<S>                                                                               <C>         <C>
Trade receivables...............................................................  $   50,843  $  64,613
Allowance for doubtful accounts.................................................        (932)    (1,426)
                                                                                  ----------  ---------
                                                                                      49,911     63,187
Other...........................................................................       3,914      2,633
                                                                                  ----------  ---------
                                                                                  $   53,825  $  65,820
                                                                                  ----------  ---------
                                                                                  ----------  ---------
</TABLE>
 
    Property  and  equipment  consisted  of the  following  at  December  31 (in
thousands):
 
<TABLE>
<CAPTION>
                                                                                    1994        1995
                                                                                  ---------  ----------
<S>                                                                               <C>        <C>
Land............................................................................  $  15,922  $   23,898
Buildings and improvements......................................................     34,556      53,908
Machinery and fixtures..........................................................     11,689      18,226
Handling and delivery equipment.................................................     13,813      18,981
Construction in progress........................................................      6,243       1,936
                                                                                  ---------  ----------
                                                                                     82,223     116,949
Less accumulated depreciation...................................................    (14,539)    (20,546)
                                                                                  ---------  ----------
                                                                                  $  67,684  $   96,403
                                                                                  ---------  ----------
                                                                                  ---------  ----------
</TABLE>
 
    Property and equipment at December 31, 1995 includes $309,000 of assets  and
$242,000 of accumulated depreciation arising from capital leases.
 
                                      F-13
<PAGE>
                              BMC WEST CORPORATION
                 NOTES TO THE FINANCIAL STATEMENTS (CONTINUED)
 
10. OTHER DATA (CONTINUED)
    Changes  in working capital items, net  of acquisitions and divestitures, in
the statement of cash flows is as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                        1993       1994        1995
                                                                      ---------  ---------  ----------
<S>                                                                   <C>        <C>        <C>
(Increase) decrease in receivables..................................  $ (12,438) $   4,544  $   (4,316)
(Increase) decrease in inventories..................................     (6,413)    (3,868)      9,994
(Increase) decrease in prepaid expenses and deferred income tax
 benefit............................................................        (85)      (555)        229
Increase (decrease) in accounts payable and accrued expenses........     11,031       (887)       (808)
                                                                      ---------  ---------  ----------
                                                                      $  (7,905) $    (766) $    5,099
                                                                      ---------  ---------  ----------
                                                                      ---------  ---------  ----------
</TABLE>
 
11. FINANCIAL INSTRUMENTS
    The book value  compared with  the fair  value of  financial instruments  at
December 31 follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                    1994                   1995
                                                            --------------------  ----------------------
                                                              BOOK       FAIR        BOOK        FAIR
                                                              VALUE      VALUE      VALUE       VALUE
                                                            ---------  ---------  ----------  ----------
<S>                                                         <C>        <C>        <C>         <C>
Cash and cash equivalents.................................  $   5,173  $   5,173  $    6,004  $    6,004
                                                            ---------  ---------  ----------  ----------
                                                            ---------  ---------  ----------  ----------
Long-term debt:
  Variable rate debt......................................  $  31,230  $  31,230  $   26,120  $   26,120
  Fixed rate debt.........................................     45,181     43,324      95,000      95,037
                                                            ---------  ---------  ----------  ----------
                                                            $  76,411  $  74,554  $  121,120  $  121,157
                                                            ---------  ---------  ----------  ----------
                                                            ---------  ---------  ----------  ----------
</TABLE>
 
    The  fair  value  of variable  interest  rate  long-term debt  is  deemed to
approximate book value.
 
    The fair value  of fixed rate  debt has been  estimated based upon  relative
changes  in the Company's variable borrowing rates since the date interest rates
were fixed.  At December  31,  1995, the  Company  had no  derivative  financial
instruments.
 
                                      F-14
<PAGE>
                              BMC WEST CORPORATION
                         CONDENSED STATEMENTS OF INCOME
                                  (UNAUDITED)
               FOR THE THREE MONTHS ENDED MARCH 31, 1995 AND 1996
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                            THREE MONTHS ENDED
                                                                                                MARCH 31,
                                                                                        --------------------------
                                                                                            1995          1996
                                                                                        ------------  ------------
<S>                                                                                     <C>           <C>
Net sales.............................................................................  $    120,519  $    147,599
Cost of sales.........................................................................        93,282       114,515
                                                                                        ------------  ------------
Gross profit..........................................................................        27,237        33,084
Selling, general and administrative expense...........................................        24,767        29,626
Other income, net.....................................................................           316           737
                                                                                        ------------  ------------
Income from operations................................................................         2,786         4,195
Interest expense......................................................................         1,959         2,956
                                                                                        ------------  ------------
Income before income taxes............................................................           827         1,239
Income taxes..........................................................................           323           489
                                                                                        ------------  ------------
Net income............................................................................  $        504  $        750
                                                                                        ------------  ------------
                                                                                        ------------  ------------
Net income per common and common equivalent share.....................................  $       0.05  $       0.08
                                                                                        ------------  ------------
                                                                                        ------------  ------------
Weighted average number of common and common equivalent shares outstanding............     9,701,779     9,755,099
                                                                                        ------------  ------------
                                                                                        ------------  ------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-15
<PAGE>
                              BMC WEST CORPORATION
                            CONDENSED BALANCE SHEETS
                    AT DECEMBER 31, 1995 AND MARCH 31, 1996
 
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                      DECEMBER 31,    MARCH 31,
                                                                                          1995           1996
                                                                                      -------------  ------------
<S>                                                                                   <C>            <C>
                                                                                                     (UNAUDITED)
Current assets
  Cash..............................................................................   $     6,004    $    3,862
  Receivables, net..................................................................        65,820        69,817
  Inventories.......................................................................        66,506        74,519
  Deferred income tax benefit.......................................................         1,668         1,668
  Prepaid expenses..................................................................         1,275         2,438
                                                                                      -------------  ------------
    Total current assets............................................................       141,273       152,304
Property and equipment, net.........................................................        96,403        94,964
Deferred loan costs.................................................................         2,440         2,286
Goodwill, net.......................................................................        18,421        18,573
Other...............................................................................         6,433         6,875
                                                                                      -------------  ------------
    Total assets....................................................................   $   264,970    $  275,002
                                                                                      -------------  ------------
                                                                                      -------------  ------------
Current liabilities
  Current portion of long-term debt.................................................   $       129    $       96
  Current redemption requirement on Class B preferred stock.........................         1,000         1,000
  Accounts payable..................................................................        29,383        34,162
  Accrued expenses..................................................................        10,565         9,357
                                                                                      -------------  ------------
    Total current liabilities.......................................................        41,077        44,615
Long-term debt, net of current portion..............................................       121,120       127,850
Deferred income taxes...............................................................         3,161         3,161
Other long-term liabilities.........................................................         1,725         1,683
Class B preferred stock.............................................................         1,960           968
Stockholders' equity
  Common stock, $0.001 par value, 20,000,000 shares authorized; 9,483,229 and
   9,491,183 shares outstanding at December 31, 1995 and March 31, 1996,
   respectively.....................................................................             9             9
  Additional paid-in-capital........................................................        59,188        59,242
  Retained earnings.................................................................        36,730        37,474
                                                                                      -------------  ------------
    Total stockholders' equity......................................................        95,927        96,725
                                                                                      -------------  ------------
    Total liabilities, redeemable preferred stock and stockholders' equity..........   $   264,970    $  275,002
                                                                                      -------------  ------------
                                                                                      -------------  ------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-16
<PAGE>
                              BMC WEST CORPORATION
                       CONDENSED STATEMENTS OF CASH FLOWS
                                  (UNAUDITED)
               FOR THE THREE MONTHS ENDED MARCH 31, 1995 AND 1996
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                              THREE MONTHS ENDED
                                                                                                  MARCH 31,
                                                                                             --------------------
                                                                                               1995       1996
                                                                                             ---------  ---------
<S>                                                                                          <C>        <C>
Cash flows from operating activities
  Net income...............................................................................  $     504  $     750
  Adjustments to reconcile net income to cash used in operating activities:
    Depreciation and amortization..........................................................      2,012      2,498
    (Gain) loss on sale of assets..........................................................         --       (367)
  Changes in working capital items net of effects of acquisitions..........................     (4,125)    (8,094)
  Other....................................................................................        192       (813)
                                                                                             ---------  ---------
      Net cash used in operating activities................................................     (1,417)    (6,026)
                                                                                             ---------  ---------
Cash flows from investing activities
  Purchase of property and equipment.......................................................     (4,600)    (1,642)
  Payment for acquisitions.................................................................     (5,367)    (1,810)
  Sale of property and equipment...........................................................         50      1,639
  Purchase of other long-term assets.......................................................       (265)        --
                                                                                             ---------  ---------
      Net cash used in investing activities................................................    (10,182)    (1,813)
                                                                                             ---------  ---------
Cash flows from financing activities
  Repayment of notes payable...............................................................     (2,664)        --
  Borrowings under revolving credit agreement..............................................     48,489     45,830
  Repayments under revolving credit agreement..............................................    (79,720)   (39,100)
  Issuance of debt.........................................................................     50,000         --
  Redemption of Class B preferred stock....................................................     (1,000)    (1,000)
  Financing costs..........................................................................       (782)        --
  Capital lease payments...................................................................        (20)       (33)
  Other....................................................................................        (71)        --
                                                                                             ---------  ---------
      Net cash provided by financing activities............................................     14,232      5,697
                                                                                             ---------  ---------
Net increase (decrease) in cash............................................................      2,633     (2,142)
Cash, beginning of period..................................................................      5,173      6,004
                                                                                             ---------  ---------
Cash, end of period........................................................................  $   7,806  $   3,862
                                                                                             ---------  ---------
                                                                                             ---------  ---------
Supplemental cash flow information:
  Cash paid during the period for --
    Interest, net of interest capitalized..................................................  $   1,030  $   1,259
    Income taxes...........................................................................  $      --  $      --
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-17
<PAGE>
                              BMC WEST CORPORATION
                    NOTES TO CONDENSED FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
1.  SUMMARY
    The condensed financial statements included herein have been prepared by the
Company,  without audit, pursuant to the rules of the Commission. In the opinion
of management, all adjustments necessary to present fairly, the results for  the
periods  presented have  been included  herein. The  adjustments made  were of a
normal, recurring nature. Certain  information and footnote disclosure  normally
included  in the financial statements have been condensed or omitted pursuant to
the rules and regulations of the Commission, although the Company believes  that
the  disclosures are adequate to make  the information presented not misleading.
These unaudited condensed  financial statements  should be  read in  conjunction
with  the audited financial  statements and notes  thereto included elsewhere in
this Prospectus. The  results of operations  for the periods  presented are  not
necessarily  indicative of  the results  that might  be expected  for the fiscal
year.
 
2.  WORKING CAPITAL CHANGES
    Changes in working capital items, net of acquisitions, for the three  months
ended March 31, 1995 and 1996 are as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                                     1995        1996
                                                                                  ----------  ----------
<S>                                                                               <C>         <C>
(Increase) decrease in accounts receivable......................................  $    1,375  $   (2,761)
Increase in inventories.........................................................      (2,640)     (7,747)
Increase in prepaid expenses....................................................        (251)     (1,157)
Increase (decrease) in accounts payable and accrued expenses....................      (3,378)      1,874
Increase in interest payable....................................................         769       1,697
                                                                                  ----------  ----------
                                                                                  $   (4,125) $   (8,094)
                                                                                  ----------  ----------
                                                                                  ----------  ----------
</TABLE>
 
3.  LONG-TERM DEBT
    Long-term debt consisted of the following at (in thousands):
 
<TABLE>
<CAPTION>
                                                                              DECEMBER 31,    MARCH 31,
                                                                                  1995          1996
                                                                              -------------  -----------
<S>                                                                           <C>            <C>
Revolving credit agreement borrowings.......................................   $    26,120    $  32,850
9.18% unsecured senior notes................................................        50,000       50,000
8.10% unsecured senior notes................................................        25,000       25,000
10% unsecured senior subordinated notes.....................................        20,000       20,000
Capital lease obligations...................................................           129           96
                                                                              -------------  -----------
                                                                                   121,249      127,946
Less current portion........................................................          (129)         (96)
                                                                              -------------  -----------
                                                                               $   121,120    $ 127,850
                                                                              -------------  -----------
                                                                              -------------  -----------
</TABLE>
 
4.  ACQUISITIONS
    In the first quarter of 1996, the Company purchased substantially all of the
assets  of two window distribution facilities in Texas. The total purchase price
of these facilities was $1,810,000.
 
                                      F-18
<PAGE>
             [PHOTOGRAPH SHOWS FLATBED TRUCKS LOADED WITH LUMBER.]
 
               BMC West prepares building materials packages and
                   coordinates on-time delivery to job sites.
 
  [PHOTOGRAPH SHOWS THE OUTSIDE VIEW OF A BMC WEST BUILDING MATERIALS CENTER.]
 
In its well-maintained facilities, BMC West tailors its product mix and services
              to meet the demands of its individual local markets.
 
     [PHOTOGRAPH SHOWS TWO MEN IN DISCUSSION AT HOUSING CONSTRUCTION SITE.]
 
               BMC West's trained and experienced sales personnel
                        assist contractors with project
                      design and materials specification.
 
[PHOTOGRAPH SHOWS MAN OPERATING PIECE OF MACHINERY IN DOOR SHOP.]
   
                                                              -C-DAVID X. TEJADA
    
 
               Value-added activities, such as pre-hanging doors,
                 are an important part of BMC West's strategy.
<PAGE>
- ------------------------------------------------
                                ------------------------------------------------
- ------------------------------------------------
                                ------------------------------------------------
 
    No  dealer,  salesman  or  other  person has  been  authorized  to  give any
information or to  make any representation  other than those  contained in  this
Prospectus  in connection with the offer contained herein, and if given or made,
such information  or representation  must  not be  relied  upon as  having  been
authorized  by  the  Company  or  any  Underwriter.  This  Prospectus  does  not
constitute an offer to  sell, or a  solicitation of an offer  to buy, shares  of
Common  Stock in any jurisdiction to any person to whom it is not lawful to make
any such  offer or  solicitation in  such jurisdiction  or in  which the  person
making  such  offer or  solicitation  is not  qualified  to do  so.  Neither the
delivery of  this  Prospectus nor  any  sale  made hereunder  shall,  under  any
circumstances,  create  an implication  that  there has  been  no change  in the
affairs of the Company since the date of this Prospectus or that the information
contained herein is correct as of any time subsequent to its date.
 
                            ------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                               PAGE
                                               -----
<S>                                         <C>
Prospectus Summary........................           3
Risk Factors..............................           6
Use of Proceeds...........................           8
Capitalization............................           8
Price Range of Common Stock and Dividend
 Policy...................................           9
Selected Financial and Operating Data.....           9
Management's Discussion and Analysis of
 Financial Condition and Results of
 Operations...............................          11
Business..................................          15
Management................................          24
Underwriting..............................          26
Legal Matters.............................          27
Experts...................................          27
Available Information.....................          27
Incorporation of Certain Documents by
 Reference................................          28
Index to Financial Statements.............         F-1
</TABLE>
 
                                     [LOGO]
 
                            ------------------------
 
                                2,000,000 SHARES
 
                                  COMMON STOCK
 
                                   PROSPECTUS
 
   
                                 JUNE 12, 1996
    
 
                             ---------------------
 
                            DILLON, READ & CO. INC.
                               PIPER JAFFRAY INC.
 
- ------------------------------------------------
                                ------------------------------------------------
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                                ------------------------------------------------


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