<SEC-DOCUMENT>0001209191-16-123166.txt : 20160525
<SEC-HEADER>0001209191-16-123166.hdr.sgml : 20160525
<ACCEPTANCE-DATETIME>20160525151305
ACCESSION NUMBER:		0001209191-16-123166
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160524
FILED AS OF DATE:		20160525
DATE AS OF CHANGE:		20160525

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Builders FirstSource, Inc.
		CENTRAL INDEX KEY:			0001316835
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-LUMBER & OTHER BUILDING MATERIALS DEALERS [5211]
		IRS NUMBER:				522084569
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2001 BRYAN STREET, SUITE 1600
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201
		BUSINESS PHONE:		(214) 880-3500

	MAIL ADDRESS:	
		STREET 1:		2001 BRYAN STREET, SUITE 1600
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BARR DAVID
		CENTRAL INDEX KEY:			0001239309

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51357
		FILM NUMBER:		161674461

	MAIL ADDRESS:	
		STREET 1:		C/O WARBURG PINCUS LLC
		STREET 2:		450 LEXINGTON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-05-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001316835</issuerCik>
        <issuerName>Builders FirstSource, Inc.</issuerName>
        <issuerTradingSymbol>BLDR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001239309</rptOwnerCik>
            <rptOwnerName>BARR DAVID</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O WARBURG PINCUS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>450 LEXINGTON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2016-05-24</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>13263266</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.40</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The shares of common stock, par value $0.01 per share (the &quot;Common Stock&quot;), of the Company that are reported herein are held by Warburg Pincus Private Equity IX, L.P., a Delaware limited partnership (&quot;WP IX&quot;). On May 24, 2016, WP IX sold its remaining shares of Common Stock in the Company to the Underwriters at a price per share of $10.40 pursuant to an Underwriting Agreement dated as of May 18, 2016, and attached as Exhibit B to the Schedule 13D filed with the SEC on May 19, 2016. As of the date hereof, WP IX is not the direct record holder of any shares of Common Stock of the Company. Warburg Pincus IX GP L.P., a Delaware limited partnership (&quot;WP IX GP&quot;), is the general partner of WP IX. WPP GP LLC, a Delaware limited liability company (&quot;WPP GP&quot;), is the general partner of WP IX GP. Warburg Pincus Partners, L.P., a Delaware limited partnership (&quot;WP Partners&quot;), is the managing member of WPP GP. (Continued in Footnote 2)</footnote>
        <footnote id="F2">(Continued from Footnote 1) Warburg Pincus Partners GP LLC, a Delaware limited liability company (&quot;WP Partners GP&quot;), is the general partner of WP Partners. Warburg Pincus &amp; Co., a New York general partnership (&quot;WP&quot;), is the managing member of WP Partners GP. Warburg Pincus LLC, a New York limited liability company (&quot;WP LLC&quot;), manages WP IX. Charles R. Kaye and Joseph P. Landy are each Managing General Partners of WP and Managing Members and Co-Chief Executive Officers of WP LLC and may be deemed to control WP IX, WP IX GP, WPP GP, WP Partners, WP Partners GP, WP and WP LLC. By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the &quot;Exchange Act&quot;), WP IX GP, WPP GP, WP Partners, WP Partners GP, WP, WP LLC, Mr. Kaye and Mr. Landy may be deemed to be the beneficial owners of any securities that may be beneficially owned by WP IX. (Continued in Footnote 3)</footnote>
        <footnote id="F3">(Continued from Footnote 2) Each of WP IX GP, WPP GP, WP Partners, WP Partners GP, WP, WP LLC, Mr. Kaye and Mr. Landy disclaim beneficial ownership of all shares of Common Stock that may be deemed to be beneficially owned by WP IX, except to the extent of any indirect pecuniary interest therein.</footnote>
        <footnote id="F4">David Barr, the reporting person, who became a director of the Company on February 27, 2006, is a Partner of WP and a Managing Director and Member of WP LLC. As such, Mr. Barr may be deemed to have an indirect pecuniary interest (within the meaning of Rule 16a-1 of the Exchange Act) in an indeterminate portion of the securities reported as beneficially owned by WP IX, WP IX GP, WPP GP, WP Partners, WP Partners GP, WP and WP LLC. Mr. Barr disclaims beneficial ownership of such securities except to the extent of any indirect pecuniary interest therein. This Form 4 shall not be deemed an admission that any reporting person or any other person referred to herein is a beneficial owner of any securities of the Company for purposes of Section 16 of the Exchange Act, or for any other purpose or that any reporting person or other person has an obligation to file this Form 4.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ David Barr, Director</signatureName>
        <signatureDate>2016-05-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
