As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

 12/3/09  Builders FirstSource, Inc.        S-3/A¶                12:1M                                     Donnelley … Solutions/FA 
 12/3/09  Builders FirstSource, Inc.        8-K:1,8,9   12/2/09    5:325K                                   Donnelley … Solutions/FA 
 12/3/09  Builders FirstSource, Inc.        DEFA14A     12/3/09    5:325K                                   Donnelley … Solutions/FA 

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¹	Filing/Form Types:
	8-K	Current Report — Form 8-K { Item 1: Business & Operations;  2: Financial Info;  3: Securities & Trading;  4: Accountants & Accounting;  5: Governance & Management;  6: Asset-Backed Securities;  7: Disclosures;  8: Events;  9: Financials }.
	DEFA14A	Definitive Additional Proxy Soliciting Material — Schedule 14A.
	S-3	Registration Statement – Securities for a Transaction — Form S-3.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
	¶	This Filing contains a delayed-release Document.