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Item 6. Exhibits

4K characters. Original on sec.gov ·

Item 6. Exhibits

Description
3.1Amended and Restated Certificate of Incorporation of Builders FirstSource, Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K, filed with the Securities and Exchange Commission on May 27, 2025, File Number 001-40620)
3.2Amended and Restated By-Laws of Builders FirstSource, Inc. (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K, filed with the Securities and Exchange Commission on May 27, 2025, File Number 001-40620)
31.1*Certification of Chief Executive Officer pursuant to 17 CFR 240.13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed by Peter M. Jackson as Chief Executive Officer
31.2*Certification of Chief Financial Officer pursuant to 17 CFR 240.13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed by Pete R. Beckmann as Chief Financial Officer
32.1**Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, signed by Peter M. Jackson as Chief Executive Officer and Pete R. Beckmann as Chief Financial Officer
101*The following financial information from Builders FirstSource, Inc.’s Form 10-Q filed on October 30, 2025 formatted in Inline eXtensible Business Reporting Language (“Inline XBRL”): (i) Condensed Consolidated Statement of Operations for the three and nine months ended September 30, 2025 and 2024, (ii) Condensed Consolidated Balance Sheet as of September 30, 2025 and December 31, 2024, (iii) Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2025 and 2024, (iv) Condensed Consolidated Statements of Changes in Stockholders’ Equity for the three and nine months ended September 30, 2025 and 2024 and (v) the Notes to Condensed Consolidated Financial Statements.
104*The cover page for the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, has been formatted in Inline XBRL.
  • Filed herewith.

** Builders FirstSource, Inc. is furnishing, but not filing, the written statement pursuant to Title 18 United States Code 1350, as added by Section 906 of the Sarbanes-Oxley Act of 2002, of Peter M. Jackson, our Chief Executive Officer, and Pete R. Beckmann, our Chief Financial Officer.

+ Indicates a management contract or compensatory plan or arrangement.

SIGNAT****URES

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.

BUILDERS FIRSTSOURCE, INC.
/s/ PETER M. JACKSON
Peter M. Jackson
President and Chief Executive Officer
(Principal Executive Officer)

October 30, 2025

/s/ PETE R. BECKMANN
Pete R. Beckmann
Executive Vice President and Chief Financial Officer (Principal Financial Officer)

October 30, 2025

/s/ MATTHEW TRESTER
Matthew Trester
Vice President and Controller
(Principal Accounting Officer)

October 30, 2025

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