BUILDERS FIRSTSOURCE, INC. AND EACH OF THE GUARANTORS PARTY HERETO SECOND PRIORITY SENIOR SECURED FLOATING RATE NOTES DUE 2016 INDENTURE Dated as of [ ], 2010 Wilmington Trust Company TrusteeBuilders FirstSource-MBS, LLC • December 31st, 2009 • Retail-lumber & other building materials dealers • New York
Company FiledDecember 31st, 2009 Industry JurisdictionINDENTURE dated as of [ ], 2010, by and among Builders FirstSource, Inc., a Delaware corporation, the Guarantors (as defined), and Wilmington Trust Company, a Delaware banking corporation, as Trustee.