UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

Commission File Number 0-51357

BUILDERS FIRSTSOURCE, INC.

(Exact name of registrant as specified in its charter)

(214) 880-3500

(Registrant’s telephone number, including area code)

     Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes þ          No o

      Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer or a non-accelerated filer. See definition of accelerated filer and large accelerated filer in Rule 12b-2 of the Exchange Act.

Large accelerated filer o          Accelerated filer o          Non-accelerated filer þ

      Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Exchange Act).     Yes o          No þ

      The number of shares of the issuer’s common stock, par value $0.01, outstanding as of April 28, 2006 was 34,150,377.

BUILDERS FIRSTSOURCE, INC.

Index to Form 10-Q

PART I — FINANCIAL INFORMATION

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

The accompanying notes are an integral part of these condensed consolidated financial statements.

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

The accompanying notes are an integral part of these condensed consolidated financial statements.

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

The accompanying notes are an integral part of these condensed consolidated financial statements.

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

      Builders FirstSource, Inc. and subsidiaries (the “Company”) is a leading provider of manufactured components, building materials and construction services to professional homebuilders and contractors in the United States.

      In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all recurring adjustments and normal accruals necessary for a fair statement of the Company’s financial position, results of operations and cash flows for the dates and periods presented. Results for interim periods are not necessarily indicative of the results to be expected during the remainder of the current year or for any future period. All significant intercompany accounts and transactions have been eliminated in consolidation.

      The condensed consolidated balance sheet as of December 31, 2005 is derived from the audited consolidated financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America. This condensed consolidated balance sheet as of December 31, 2005 and the unaudited condensed consolidated financial statements included herein should be read in conjunction with the more detailed audited consolidated financial statements for the years ended December 31, 2005 included in the Company’s most recent annual report on Form 10-K. Accounting policies used in the preparation of these unaudited condensed consolidated financial statements are consistent with the accounting policies described in the Notes to Consolidated Financial Statements included in the Company’s Form 10-K.

      The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates.

      Estimates are used when accounting for items such as revenue, vendor rebates, allowances for returns, discounts and doubtful accounts, employee compensation programs, depreciation and amortization periods, taxes, inventory values, insurance programs, and when evaluating potential impairment of goodwill, other intangible assets and long-lived assets.

      Net income (loss) per common share (“EPS”) is calculated in accordance with Statement of Financial Accounting Standards (“SFAS”) No. 128, Earnings per Share, which requires the presentation of basic and diluted EPS. Basic EPS is computed using the weighted average number of common shares outstanding during the period. Diluted EPS is computed using the weighted average number of common shares outstanding during the period, plus the dilutive effect of potential common stock. For the purpose of computing diluted EPS, weighted average shares outstanding have been adjusted for common shares underlying options of 4.2 million for the three months ended March 31, 2006. Weighted average shares outstanding for the three months ended March 31, 2006 have also been adjusted for 0.4 million shares of restricted stock. There was no restricted stock outstanding at March 31, 2005. Options to purchase 0.5 million and 4.5 million shares of common stock were not included in the computations of diluted EPS for the three months ended March 31, 2006 and 2005, respectively, because their effect was anti-dilutive.

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(unaudited)

      The table below presents a reconciliation of weighted average common shares used in the calculation of basic and diluted EPS (in thousands):

      Comprehensive income is defined as the change in equity (net assets) of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. It consists of net income and other gains and losses affecting stockholders’ equity that, under accounting principles generally accepted in the United States, are excluded from net income.

      The Company entered into two interest rate swap agreements during 2005 in order to obtain a fixed rate with respect to $200.0 million of its outstanding floating rate debt and thereby reduce its exposure to interest rate volatility. The interest rate swaps qualify as fully effective, cash-flow hedging instruments. Therefore, the gain or loss of the qualifying cash flow hedges are reported in other comprehensive income and reclassified into earnings in the same period in which the hedge transactions affect earnings. At March 31, 2006, the fair value of the interest rate swaps was a receivable of $4.6 million.

      The following table presents the components of comprehensive income for the three months ended March 31, 2006 and 2005 (in thousands):

      At March 31, 2006, the Company has two stock-based employee compensation plans, which are described more fully in Note 3. The Company issues new common stock shares upon exercises of stock options and grants of restricted stock. Prior to January 1, 2006, the Company accounted for these plans under the recognition and measurement provisions of Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to Employees, (“APB 25”) and related Interpretations, as permitted by SFAS No. 123, Accounting for Stock-Based Compensation (“SFAS 123”). No stock-based compensation was recognized under the fair value recognition provisions for stock options in the statements of operations for the years ended December 31, 2005, 2004 and 2003, as all grants under the plans had an exercise price equal to the market value or minimum value of the underlying common stock on the date of grant. Effective January 1, 2006, the Company adopted the fair value recognition provisions of SFAS No. 123 (Revised 2004), Share-Based Payment, (“SFAS 123(R)”) using the modified prospective transition method. Accordingly, the Company will record expense for (i) the unvested portion of grants issued during 2005 and (ii) new grant issuances, both of which will be expensed over the requisite service (i.e., vesting) periods. The Company utilized the

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(unaudited)

minimum value method for option grants issued prior to 2005, and these options will continue to be accounted for under APB 25 in accordance with SFAS 123(R). Results for prior periods have not been restated.

      The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions for the three months ended March 31, 2006: expected life — 5.0 years, expected volatility — 40.9%, expected dividend yield — 0.00%, and risk-free rate — 4.05%. There were no options granted during the three months ended March 31, 2005. The expected life represents the period of time the options are expected to be outstanding. We consider the contractual term, the vesting period and the expected lives used by a peer group with similar option terms in determining the expected life assumption. As a newly public company, we utilize the volatility of a peer group over a recent historical period equal to the expected life of the option. The expected dividend yield is based on the Company’s history of not paying regular dividends in the past and its current intention to not pay regular dividends in the foreseeable future. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant and has a term equal to the expected life of the options.

      As a result of adopting SFAS 123(R), the Company’s results of operations for the three months ended March 31, 2006 included compensation expense of $0.6 million ($0.4 million net of taxes), representing a $0.01 impact to both basic and diluted earnings per share.

      Prior to the adoption of SFAS 123(R), the Company presented all tax benefits of deductions resulting from the exercise of stock options as operating cash flows in the statement of cash flows. SFAS 123(R) requires the cash flows resulting from the tax benefits of deductions in excess of the compensation cost recognized for those options (excess tax benefits) to be classified as financing cash flows. Financing cash inflows of $3.9 million for the first quarter 2006 represent $1.7 million of cash received from the exercise of stock options and $2.2 million related to the tax benefits of deductions in excess of the compensation cost recognized for the exercise of stock options. The excess tax benefits classified as financing cash inflows would have been classified as operating cash inflows prior to the adoption of SFAS 123(R).

      No pro forma disclosure is included for the three months ended March 31, 2005 as the Company used the minimum value method for pro forma disclosure purposes for all options outstanding during the period. No expense would be recorded for these options as a result of adopting SFAS 123(R).

      Certain prior year amounts have been reclassified to conform to the current year presentation.

      Long-term debt consisted of the following (in thousands):

      On February 11, 2005, the Company entered into a $350.0 million senior secured credit agreement (the “2005 Agreement”) with a syndicate of banks. The 2005 Agreement was initially comprised of a

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(unaudited)

$110.0 million long-term revolver due February 11, 2010; a $225.0 million term loan; and a $15.0 million pre-funded letter of credit facility due August 11, 2011. During the year ended December 31, 2005, the Company repaid $185.0 million of the term loan with proceeds from its initial public offering and cash generated from operations. These repayments permanently reduced the borrowing capacity under the term loan; eliminated the required installment payments through December 2006; reduced the quarterly installment payments to $0.1 million; and reduced the final payment to $38.1 million. At March 31, 2006, the available borrowing capacity of the revolver totaled $108.8 million after being reduced by outstanding letters of credit under the revolver of approximately $1.2 million. The Company also has $15.0 million of outstanding letters of credit under the pre-funded letter of credit facility. The weighted-average interest rate at March 31, 2006 for borrowings under the 2005 Agreement was 7.49%.

      On February 11, 2005, the Company issued $275.0 million in aggregate principal amount of second priority senior secured floating rate notes. The floating rate notes mature on February 15, 2012. During 2005, the Company entered into two three-year interest rate swap agreements in order to obtain a fixed rate with respect to $200.0 million of its outstanding floating rate debt and thereby reduce its exposure to interest rate volatility. The weighted-average interest rate at March 31, 2006 for the floating rate notes was 8.51% including the effect of interest rate swap agreements.

      The Company completed construction on a new multi-purpose facility during the first quarter of 2006. Based on the evaluation of the construction project in accordance with Emerging Issues Task Force No. 97-10, The Effect of Lessee Involvement in Asset Construction, the Company was deemed the owner of the facility during the construction period. Effectively, a sale and leaseback of the facility occurred when construction was completed and the lease term began. Based on criteria outlined in SFAS No. 98, Accounting for Leases, this transaction did not qualify for sale-leaseback accounting. As a result, the building and the offsetting long-term lease obligation are included on the consolidated balance sheet as a component of fixed assets and other debt, respectively. The building is being depreciated over its useful life, and the lease obligation is being amortized such that there will be no gain or loss recorded if the lease is not extended at the end of the term.

      Future maturities of long-term debt as of March 31, 2006 were as follows (in thousands):

      Under its 2005 Equity Incentive Plan (“2005 Plan”), the Company is authorized to grant stock-based awards in the form of incentive stock options, non-qualified stock options, restricted stock and other common stock-based awards. The maximum number of common shares reserved for the grant of awards under the 2005 Plan is 2,200,000, subject to adjustment as provided by the 2005 Plan. No more than 2,200,000 shares may be made subject to options or stock appreciation rights (“SARs”) granted under the 2005 Plan and no more than

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(unaudited)

1,100,000 shares may be made subject to stock-based awards other than options or SARs. Stock options and SARs granted under the 2005 Plan may not have a term exceeding 10 years from the date of grant. The 2005 Plan also provides that all awards will become fully vested and/or exercisable upon a change in control (as defined in the 2005 Plan). Other specific terms for awards granted under the 2005 Plan shall be determined by the Company’s board of directors (or a committee of its members.) Historically, awards granted under the 2005 Plan generally vest over a three-year period. As of March 31, 2006, 1.2 million shares were available for issuance under the 2005 Plan, 0.7 million of which may be made subject to stock-based awards other than options or SARs.

      Under the Builders FirstSource, Inc. 1998 Stock Incentive Plan (“1998 Plan”), the Company is authorized to issue shares of common stock pursuant to awards granted in various forms, including incentive stock options, non-qualified stock options and other stock-based awards. The 1998 Plan also authorizes the sale of common stock on terms determined by the Company’s board of directors.

      Stock options granted under the 1998 generally cliff vest after a period of seven to nine years. A portion of certain option grants are subject to acceleration if certain financial targets are met. These financial targets include return on net assets and earnings before interest, taxes, depreciation and amortization. These targets are based on the performance of the operating group in which the employee performs their responsibilities and the performance of the Company as a whole for employees whose job responsibilities cover all of the company. The expiration date is generally 10 years subsequent to date of issuance. To date, these targets have generally been met. As of January 1, 2005, no further grants will be made under the 1998 Plan.

      The following table summarizes the Company’s stock option activity for the three months ended March 31, 2006 (shares in thousands):

      The outstanding options at March 31, 2006, include 0.6 million options granted under the 2005 Plan. None of the 2005 Plan awards were exercisable at March 31, 2006. The weighted average grant date fair value of options granted during the three months ended March 31, 2006 was $9.99 per share. The total intrinsic value of options exercised during the three months ended March 31, 2006 was $11.6 million.

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(unaudited)

      The following table summarizes the Company’s restricted stock activity for the three months ended March 31, 2006 (shares in thousands):

      As of March 31, 2006, there was $12.1 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Plans. That cost is expected to be recognized over a weighted-average period of 2.8 years. No shares of restricted stock vested during the three months ended March 31, 2006.

      The Company is a party to various legal proceedings in the ordinary course of business. Although the ultimate disposition of these proceedings cannot be predicted with certainty, management believes the outcome of any claim that is pending or threatened, either individually or on a combined basis, will not have a material adverse effect on the consolidated financial position, cash flows or results of operations of the Company. However, there can be no assurances that future costs would not be material to the results of operations or liquidity of the Company for a particular period.

BUILDERS FIRSTSOURCE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(unaudited)

      Sales by product category for the three month periods ended March 31, 2006 and 2005 were as follows (in thousands):

      On April 28, 2006, the Company acquired the common stock of Freeport Truss Company and certain assets and assumed liabilities of Freeport Lumber Company (collectively “Freeport”) for cash consideration of approximately $27 million (subject to certain adjustments). Freeport is a market-leading truss manufacturer and building material distributor in the Florida panhandle area. Its products include manufactured roof and floor trusses, as well as other residential building products such as lumber and lumber sheet goods, hardware, millwork, doors and windows.

      The acquisition will be accounted for by the purchase method, and accordingly the results of operations will be included in the Company’s consolidated financial statements from the acquisition date. The purchase price will be allocated to the assets acquired and liabilities assumed based on the estimated fair values at the acquisition date. The excess of the purchase price over the estimated fair value of the net assets acquired and liabilities assumed will be recorded as goodwill. Pro forma results of operations will not be presented as this acquisition is not material.

      The following discussion of our financial condition and results of operations should be read in conjunction with the Management’s Discussion and Analysis of Financial Condition and Results of Operations and the consolidated financial statements and notes thereto for the year ended December 31, 2005 included in our most recent annual report on Form 10-K. The following discussion and analysis should also be read in conjunction with the unaudited condensed consolidated financial statements appearing elsewhere in this report. In this quarterly report on Form 10-Q, references to the “Company,” “we,” “our,” “ours” or “us” refer to Builders FirstSource, Inc. and its consolidated subsidiaries, unless otherwise stated or the context otherwise requires.

Cautionary Statement

      Statements in this report which are not purely historical facts or which necessarily depend upon future events, including statements regarding our anticipations, beliefs, expectations, hopes, intentions or strategies for the future, may be forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. All forward-looking statements in this report are based upon information available to us on the date of this report. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Any forward-looking statements made in this report involve risks and uncertainties that could cause actual events or results to differ materially from the events or results described in the forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements. In addition, oral statements made by our directors, officers and employees to the investor and analyst communities, media representatives and others, depending upon their nature, may also constitute forward-looking statements. As with the forward-looking statements included in this report, these forward-looking statements are by nature inherently uncertain, and actual results may differ materially as a result of many factors. Further information regarding the risk factors that could affect our financial and other results are included as Item 1A of our annual report on Form 10-K.

OVERVIEW

      We are a leading supplier and a fast-growing manufacturer of structural and related building products for residential new construction in the U.S. Our manufactured products include our factory-built roof and floor trusses, wall panels and stairs, as well as engineered wood that we design and cut for each home. We also manufacture custom millwork and trim that we market under the Synboard^tm brand name, and aluminum and vinyl windows. We also assemble interior and exterior doors into pre-hung units. In addition, we supply our customers with a broad offering of professional grade building products not manufactured by us, such as dimensional lumber and lumber sheet goods, various window, door and millwork lines, as well as cabinets, roofing and gypsum wallboard. Our full range of construction-related services includes professional installation, turn-key framing and shell construction, and spans all our product categories.

      We group our building products and services into five product categories: prefabricated components, windows & doors, lumber & lumber sheet goods, millwork, and other building products & services. Prefabricated components consist of factory-built floor and roof trusses, wall panels and stairs, as well as engineered wood that we design and cut for each home. The windows & doors category is comprised of the manufacturing, assembly and distribution of windows and the assembly and distribution of interior and exterior door units. Lumber & lumber sheet goods include dimensional lumber, plywood and oriented strand board (“OSB”) products used in on-site house framing. Millwork includes interior and exterior trim, columns and posts that we distribute, as well as custom exterior features that we manufacture under the Synboard brand name. The other building products & services category is comprised of products including cabinets, gypsum, roofing and insulation, and services including turn-key framing and shell construction, design assistance and the professional installation of products, which spans all of our product categories.

      The following trends, events and uncertainties, some of which are beyond our control, represent what management believes are the most significant challenges and opportunities that are currently impacting our

business and industry. The discussion also includes management’s best assessment of what effects these trends are having on our business:

In June 2005, we completed an initial public offering of our common stock (“IPO”). As a public company, we will incur significant incremental legal, accounting and other expenses that we did not incur as a private company. These include costs associated with SEC rules and regulations (such as periodic reporting requirements and compliance with Section 404 of the Sarbanes-Oxley Act of 2002), NASDAQ rules and regulations, and director and officer liability insurance costs.

SEASONALITY AND OTHER FACTORS

      Our first and fourth quarters have historically been, and are expected to continue to be, adversely affected by weather patterns in some of our markets, causing reduced construction activity. In addition, quarterly results historically have reflected, and are expected to continue to reflect, fluctuations from period to period arising from the following:

      The composition and level of working capital typically change during periods of increasing sales as we carry more inventory and receivables. Working capital levels typically increase in the second and third quarters of the year due to higher sales during the peak residential construction season. These increases have in the past resulted in lower or negative operating cash flows during this peak season, which generally have been financed through our revolving credit facility or cash on hand. Collection of receivables and reduction in inventory levels following the peak building and construction season have more than offset this negative cash flow. More recently, we have relied less on our revolving credit facility due to our ability to generate sufficient operating cash flows. We believe our revolving credit facility and our ability to generate positive cash flows from operating activities will continue to be sufficient to cover seasonal working capital needs.

RECENT DEVELOPMENTS

      On April 28, 2006, the Company acquired the common stock of Freeport Truss Company and certain assets and assumed liabilities of Freeport Lumber Company (collectively “Freeport”) for cash consideration of approximately $27 million (subject to certain adjustments). Freeport is a market-leading truss manufacturer and building material distributor in the Florida panhandle area. Its products include manufactured roof and floor trusses, as well as other residential building products such as lumber and lumber sheet goods, hardware, millwork, doors and windows.

      The acquisition will be accounted for by the purchase method, and accordingly the results of operations will be included in the Company’s consolidated financial statements from the acquisition date. The purchase price will be allocated to the assets acquired and liabilities assumed based on the estimated fair values at the

acquisition date. The excess of the purchase price over the estimated fair value of the net assets acquired and liabilities assumed will be recorded as goodwill. Pro forma results of operations will not be presented as this acquisition is not material.

      Prior to January 1, 2006, we accounted for our stock-based compensation plans under the recognition and measurement provisions of Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to Employees, (“APB 25”) and related Interpretations, as permitted by SFAS No. 123, Accounting for Stock-Based Compensation (“SFAS 123”). No stock-based compensation was recognized for stock options in the statement of operations for the years ended December 31, 2005, 2004 and 2003, as all grants under the plans had an exercise price equal to the market value or minimum value of the underlying common stock on the date of grant. Effective January 1, 2006, we adopted the fair value recognition provisions of SFAS No. 123 (Revised 2004), Share-Based Payment,(“SFAS 123(R)”) using the modified prospective transition method. Accordingly, we will record expense for (i) the unvested portion of grants issued during 2005 and (ii) new grant issuances, both of which will be expensed over the requisite service (i.e., vesting) periods. We utilized the minimum value method for option grants issued prior to 2005, and these options will continue to be accounted for under APB 25 in accordance with SFAS 123(R). Results for prior periods have not been restated. Prior to 2005, we utilized stock options for our stock-based incentive programs. As a result of SFAS 123(R), we anticipate using a combination of both stock options and restricted stock for grants under stock-based incentive programs.

      The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions for the three months ended March 31, 2006: expected life — 5.0 years, expected volatility — 40.9%, expected dividend yield — 0.00%, and risk-free rate — 4.05%. There were no options granted during the three months ended March 31, 2005. The expected life represents the period of time the options are expected to be outstanding. We consider the contractual term, the vesting period and the expected lives used by a peer group with similar option terms in determining the expected life assumption. As a newly public company, we utilize the volatility of a peer group over a recent historical period equal to the expected life of the option. The expected dividend yield is based on our history of not paying regular dividends in the past and our current intention to not pay regular dividends in the foreseeable future. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant and has a term equal to the expected life of the options.

      As a result of adopting SFAS 123(R), our results of operations for the three months ended March 31, 2006 included compensation expense of $0.6 million ($0.4 million net of taxes), representing a $0.01 impact to both basic and diluted earnings per share. We estimate that the impact of adopting SFAS 123(R), will reduce consolidated operating income in fiscal year 2006 by approximately $3.9 million to $4.1 million. This estimate includes the impact of 0.5 million stock options and 0.3 million shares of restricted stock issued to employees in February 2006 but does not include any additional issuances in 2006. Actual share-based compensation expense in fiscal 2006 will depend, however, on a number of factors, including the amount of new awards granted in 2006, the fair value of those awards at the date of grant, and the fair value of our common stock.

      Prior to the adoption of SFAS 123(R), we presented all tax benefits of deductions resulting from the exercise of stock options as operating cash flows in the statement of cash flows. SFAS 123(R) requires the cash flows resulting from the tax benefits of deductions in excess of the compensation cost recognized for those options (excess tax benefits) to be classified as financing cash flows. Financing cash inflows of $3.9 million for the first quarter 2006 represent $1.7 million of cash received from the exercise of stock options and $2.2 million related to the tax benefits of deductions in excess of the compensation cost recognized for the exercise of stock options. The excess tax benefits classified as financing cash inflows would have been classified as operating cash inflows prior to the adoption of SFAS 123(R).

RESULTS OF OPERATIONS

      The following table sets forth, for the three months ended March 31, 2006 and 2005, the percentage relationship to sales of certain costs, expenses and income items:

     Three Months Ended March 31, 2006 Compared with the Three Months Ended March 31, 2005

      Our results for the three months ended March 31, 2006 were primarily driven by sales and gross margin growth for all product categories, as compared to the same period in 2005. We believe that market share gains were the primary contributor to our sales growth. In addition, overall favorable housing activity in our markets, and, to a lesser extent, new facilities also contributed to sales growth. In particular, strength in our Texas, Georgia, North Carolina and South Carolina markets offset areas of weakness in certain Mid-Atlantic, Midwest and Florida markets. This growth was slightly offset by lower market prices for lumber & lumber sheet goods as compared to the same period in 2005. Commodity prices decreased beyond our expectations during the quarter, but we were able to mitigate the negative impact through pricing management and diversifying into more value-added product sales. Our results for the three months ended March 31, 2005 were negatively impacted by the following charges related to our February 2005 refinancing: 1) a $36.4 million cash payment (including applicable payroll taxes of $0.6 million) made to stock option holders, which was included in selling, general and administrative expenses and 2) $11.4 million of debt issuance cost write-offs, financing costs and early termination penalties, which were included in interest expense. Excluding the payment to option holders in the prior year quarter, selling, general and administrative expenses increased as expected due to higher salaries and benefits expense, fuel costs and professional services fees.

      Sales. Sales for the three months ended March 31, 2006 were $588.6 million, a 15.6% increase over sales of $509.3 million for the three months ended March 31, 2005. The following table shows sales classified by product category (dollars in millions):

      Sales of prefabricated components increased $18.9 million to $122.0 million for the three months ended March 31, 2006. This was largely attributable to the increase in truss and panel sales of $12.3 million and engineered wood of $5.7 million resulting from increased usage of prefabricated components by our customers.

      Sales of windows & doors increased $18.2 million to $115.6 million for the three months ended March 31, 2006. This was attributable to a $10.0 million increase in sales of assembled and distributed window products, approximately $4.8 million of which related to windows we manufactured. In addition, sales of pre-assembled door units increased $8.2 million.

      Sales of lumber & lumber sheet goods increased $17.3 million to $205.7 million for the three months ended March 31, 2006. This increase was largely attributable to unit volume increases of $18.9 million, which were partially offset by lower prices, which had a negative effect of approximately $1.6 million.

      Sales of millwork products increased $7.7 million to $51.9 million for the three months ended March 31, 2006. Sales of exterior trim and siding increased $5.9 million, and interior trim and moldings increased $2.2 million.

      Sales of other building products & services increased $17.2 million to $93.4 million for the three months ended March 31, 2006. This increase was largely attributable to a $5.3 million increase in installation services and increases in sales for insulation, gypsum, roofing and hardware products of $3.4 million, $2.8 million, $1.8 million and $1.5 million, respectively.

      Gross Margin. Gross margin was $150.4 million for the three months ended March 31, 2006, an increase of $29.4 million. Gross margin percentage improved for all product categories and increased from 23.7% for the three months ended March 31, 2005 to 25.6% for the three months ended March 31, 2006. Gross margin for prefabricated components increased $8.4 million and was the largest contributor to margin expansion. Overall, higher sales levels, favorable product mix, lower raw material costs and efficiency gains drove the improvement in gross margin percentage.

      Selling, General and Administrative Expenses. Selling, general and administrative expenses were $112.2 million for the three months ended March 31, 2006, a decrease of $21.1 million, or 15.8%. The three months ended March 31, 2005 included a $36.4 million cash payment (including applicable payroll taxes of $0.6 million) made to stock option holders in conjunction with our February 2005 refinancing. This payment was made in lieu of adjusting the exercise price of their options. Excluding the impact of this payment, salaries and benefits expense increased $11.2 million, largely resulting from a $2.1 million increase in selling expenses and a 7.1% increase in average headcount, related to sales growth. Salaries and benefits for the three months ended March 31, 2006 also included $0.6 million of stock compensation expense related to the adoption of SFAS 123(R) on January 1, 2006 and approximately $1.5 million of severance costs as we continue to seek efficiencies in our administrative functions. In addition, handling and delivery expenses increased $2.4 million, primarily for fuel costs, and professional services fees increased $1.0 million, primarily related to services required in connection with being a public company.

      Interest Expense. Interest expense was $7.2 million for the three months ended March 31, 2006, a decrease of $12.1 million. The decrease was primarily attributable to charges associated with our February 2005 refinancing. These charges are summarized below for the three months ended March 31, 2005 (in thousands):

      In addition, lower average debt levels contributed to interest expense decreasing approximately $1.9 million. These decreases were partially offset by approximately $1.3 million of additional interest expense resulting from higher interest rates during the three months ended March 31, 2006.

      Provision (benefit) for Income Taxes. The effective combined federal and state tax rate was 37.7% and 40.2% for the three months ended March 31, 2006 and 2005, respectively. The decrease in the effective tax rate was primarily related to the negative impact of certain expenses that were not deductible for state tax purposes during the first quarter 2005.

LIQUIDITY AND CAPITAL RESOURCES

      Our primary capital requirements have been to fund working capital needs, meet required debt payments, including debt service payments on our floating rate notes and credit agreement, to fund capital expenditures and acquisitions, and to pay special dividends, if any, on our common stock. Capital resources have primarily consisted of cash flows from operations and borrowings under our credit facility. In addition, we completed our IPO in June 2005 and used the net proceeds, together with cash on hand, to repay a portion of our term loan. Based on our ability to generate cash flows from operations and our borrowing capacity under the revolver, we believe we will have sufficient capital to meet our anticipated short-term needs, including our capital expenditures and our debt obligations for the foreseeable future. We may also use our funds, as well as external sources of funds, for acquisitions of complementary businesses when such opportunities become available.

      Although we anticipate that our primary source of funds will be from operations, we have in the past and may in the future raise external funds through the sale of common stock or debt in the public capital markets or in privately negotiated transactions. In assessing our liquidity, key components include our net income and current assets and liabilities. For the longer term, our debt and long-term liabilities are also considered key to assessing our liquidity.

      In the long-term, we expect to use our existing funds and cash flows from operations to satisfy our debt and other long-term obligations. We may also use our funds, as well as external sources of funds, to retire debt as appropriate, based upon market conditions and our desired liquidity and capital structure or for acquisitions of complementary businesses when such opportunities become available.

      Cash flows provided by operating activities were $3.8 million for the three months ended March 31, 2006 compared to cash used of $8.7 million for the three months ended March 31, 2005. The increase in cash flows provided by operating activities was primarily driven by increased sales and improved profitability and was partially offset by the payment of bonuses accrued in fiscal 2005 and paid in the first quarter 2006. There was no similar bonus payment in the first quarter 2005 as fiscal 2004 bonuses were accrued and paid during 2004. Our operating cash flows continue to benefit from our focus on working capital management. We have continued to work with our vendors to extend our payment terms, which has increased our accounts payable days. In addition, our accounts receivable days have decreased, and our inventory turns have increased.

      During the three months ended March 31, 2006 and 2005, cash flows used for investing activities were $5.9 million and $4.2 million, respectively. Capital expenditures increased approximately $0.6 million from $5.5 million for the three months ended March 31, 2005 to $6.1 million for the three months ended March 31, 2006 primarily due to purchasing machinery and equipment to support increased capacity at both existing and new facilities. Proceeds from the sale of property, plant and equipment decreased primarily due to the sale of real estate related to closed facilities in the prior year quarter.

      Net cash provided by financing activities was $3.9 million for the three months ended March 31, 2006 compared to net cash used in financing activities of $25.6 million for the three months ended March 31, 2005. Financing cash inflows of $3.9 million for the first quarter 2006 represent $1.7 million of cash received from the exercise of stock options and $2.2 million related to the tax benefits of deductions in excess of the compensation cost recognized for the exercise of stock options. Prior to the adoption of SFAS 123(R), the excess tax benefits were classified as operating cash flows. In February 2005, we recapitalized the Company by entering into a senior secured credit agreement and issuing second priority senior secured floating rate notes. We received gross proceeds of $225.0 million and $275.0 million from these two transactions, respectively. We used the proceeds, together with cash on hand, to retire $313.3 million of a prior credit facility, to pay a special

cash dividend of $201.2 million to stockholders, and to pay $21.1 million of expenses related to the refinancing.

      On February 11, 2005, we entered into a $350.0 million senior secured credit agreement (the “2005 Agreement”) with a syndicate of banks. The 2005 Agreement was initially comprised of a $110.0 million long-term revolver due February 11, 2010; a $225.0 million term loan; and a $15.0 million pre-funded letter of credit facility. During the year ended December 31, 2005, we repaid $185.0 million of the term loan with proceeds from our initial public offering and cash generated from operations. These repayments permanently reduced the borrowing capacity under the term loan; eliminated the required installment payments through December 2006; reduced the quarterly installment payments to $0.1 million; and reduced the final payment to $38.1 million. At March 31, 2006, the available borrowing capacity of the revolver totaled $108.8 million after being reduced by outstanding letters of credit under the revolver of approximately $1.2 million. We also have $15.0 million of outstanding letters of credit under the pre-funded letter of credit facility. The weighted-average interest rate at March 31, 2006 for borrowings under the 2005 Agreement was 7.49%.

      On February 11, 2005, we issued $275.0 million in aggregate principal amount of second priority senior secured floating rate notes. The floating rate notes mature on February 15, 2012. During 2005, we entered into two three-year interest rate swap agreements in order to obtain a fixed rate with respect to $200.0 million of our outstanding floating rate debt and thereby reduce our exposure to interest rate volatility. The weighted-average interest rate at March 31, 2006 for the floating rate notes was 8.51% including the effect of interest rate swap agreements.

      Long-term debt consists of the following:

      Capital expenditures vary depending on prevailing business factors, including current and anticipated market conditions. With the exception of 2003, capital expenditures in recent years have remained at relatively low levels in comparison to the operating cash flows generated during the corresponding periods. We believe that this trend is likely to continue given our existing facilities, our current acquisition strategy and our product portfolio and anticipated market conditions going forward. For the three months ended March 31, 2006 and 2005, capital expenditures totaled $6.1 million and $5.5 million, respectively. The increase was primarily due to purchasing machinery and equipment to support increased capacity at both existing and new facilities. Consistent with previous spending patterns, we anticipate that future capital expenditures will focus primarily

on expanding our value-added product offerings such as prefabricated components. We expect our capital expenditures to range from $35 million to $37 million in 2006.

      We experience changes in interest expense when market interest rates change. Changes in our debt could also increase these risks. We utilize interest rate swap contracts to fix interest rates on our outstanding long-term debt balances. Based on debt outstanding and interest rate swap contracts in place at March 31, 2006, a 1.0% increase in interest rates would result in approximately $1.2 million of additional interest expense annually.

      We purchase certain materials, including lumber products, which are then sold to customers as well as used as direct production inputs for our manufactured products that we deliver. Short-term changes in the cost of these materials, some of which are subject to significant fluctuations, are sometimes, but not always, passed on to our customers. Our delayed ability to pass on material price increases to our customers can adversely impact our operating income.

      Controls Evaluation and Related CEO and CFO Certifications. Our management, with the participation of our principal executive officer (“CEO”) and principal financial officer (“CFO”), conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this quarterly report. The controls evaluation was conducted by our Disclosure Committee, comprised of senior representatives from our finance, accounting, internal audit, and legal departments under the supervision of our CEO and CFO.

      Certifications of our CEO and our CFO, which are required in accordance with Rule 13a-14 of the Securities Exchange Act of 1934, as amended (“Exchange Act”), are attached as exhibits to this quarterly report. This “Controls and Procedures” section includes the information concerning the controls evaluation referred to in the certifications, and it should be read in conjunction with the certifications for a more complete understanding of the topics presented.

      Limitations on the Effectiveness of Controls. We do not expect that our disclosure controls and procedures will prevent all errors and all fraud. A system of controls and procedures, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the system are met. Because of the limitations in all such systems, no evaluation can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. Furthermore, the design of any system of controls and procedures is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions, regardless of how unlikely. Because of these inherent limitations in a cost-effective system of controls and procedures, misstatements or omissions due to error or fraud may occur and not be detected.

      Scope of the Controls Evaluation. The evaluation of our disclosure controls and procedures included a review of their objectives and design, the Company’s implementation of the controls and procedures and the effect of the controls and procedures on the information generated for use in this quarterly report. In the course of the evaluation, we sought to identify whether we had any data errors, control problems or acts of fraud and to confirm that appropriate corrective action, including process improvements, were being undertaken if needed. This type of evaluation is performed on a quarterly basis so that conclusions concerning the effectiveness of our disclosure controls and procedures can be reported in our quarterly reports on Form 10-Q. Many of the components of our disclosure controls and procedures are also evaluated by our internal audit department, our legal department and by personnel in our finance organization. The overall goals of these various evaluation activities are to monitor our disclosure controls and procedures on an ongoing basis, and to maintain them as dynamic systems that change as conditions warrant.

      Conclusions regarding Disclosure Controls. Based on the required evaluation of our disclosure controls and procedures, our CEO and CFO have concluded that, as of March 31, 2006, we maintain disclosure controls and procedures that are effective in providing reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.

      Changes in Internal Control over Financial Reporting. During the period covered by this report, there have been no changes in our internal control over financial reporting identified in connection with the evaluation described above that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II — OTHER INFORMATION

      We are involved in various claims and lawsuits incidental to the conduct of our business in the ordinary course. We carry insurance coverage in such amounts in excess of our self-insured retention as we believe to be reasonable under the circumstances and that may or may not cover any or all of our liabilities in respect of claims and lawsuits. We do not believe that the ultimate resolution of these matters will have a material adverse impact on our consolidated financial position, cash flows or results of operations.

      Although our business and facilities are subject to federal, state and local environmental regulation, environmental regulation does not have a material impact on our operations. We believe that our facilities are in material compliance with such laws and regulations. As owners and lessees of real property, we can be held liable for the investigation or remediation of contamination on such properties, in some circumstances without regard to whether we knew of or were responsible for such contamination. Our current expenditures with respect to environmental investigation and remediation at our facilities are minimal, although no assurance can be provided that more significant remediation may not be required in the future as a result of spills or releases of petroleum products or hazardous substances or the discovery of unknown environmental conditions.

      In addition to the other information set forth in this report, you should carefully consider the factors discussed in Part 1, “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2005, which could materially affect our business, financial condition or future results. The risks described in our Annual Report on Form 10-K are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

Unregistered Sales of Equity Securities

      (a) None

Use of Proceeds

      (b) Not applicable.

Company Stock Repurchases

      (c) None.

      (a) None.

      (b) None.

      None.

      (a) None.

      (b) None.

SIGNATURES

      Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

May 4, 2006

May 4, 2006

EXHIBIT INDEX