<SEC-DOCUMENT>0001104659-14-016439.txt : 20140305
<SEC-HEADER>0001104659-14-016439.hdr.sgml : 20140305
<ACCEPTANCE-DATETIME>20140305164001
ACCESSION NUMBER:		0001104659-14-016439
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20140303
FILED AS OF DATE:		20140305
DATE AS OF CHANGE:		20140305

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BOISE CASCADE Co
		CENTRAL INDEX KEY:			0001328581
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-LUMBER & OTHER CONSTRUCTION MATERIALS [5030]
		IRS NUMBER:				201496201
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1111 WEST JEFFERSON STREET, SUITE 300
		STREET 2:		P. O. BOX 50
		CITY:			BOISE
		STATE:			ID
		ZIP:			83702
		BUSINESS PHONE:		(208) 384-6161

	MAIL ADDRESS:	
		STREET 1:		1111 WEST JEFFERSON STREET, SUITE 300
		STREET 2:		P. O. BOX 50
		CITY:			BOISE
		STATE:			ID
		ZIP:			83702

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BOISE CASCADE, L.L.C.
		DATE OF NAME CHANGE:	20050527

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MADISON DEARBORN PARTNERS LLC
		CENTRAL INDEX KEY:			0001181100
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35805
		FILM NUMBER:		14669798

	BUSINESS ADDRESS:	
		STREET 1:		THREE FIRST NATIONAL PLAZA
		STREET 2:		70 WEST MADISON STREET, SUITE 4600
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60602
		BUSINESS PHONE:		3128951000

	MAIL ADDRESS:	
		STREET 1:		THREE FIRST NATIONAL PLAZA
		STREET 2:		70 WEST MADISON STREET, SUITE 4600
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MADISON DEARBORN PARTNERS IV LP
		CENTRAL INDEX KEY:			0001249306
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35805
		FILM NUMBER:		14669799

	BUSINESS ADDRESS:	
		STREET 1:		THREE FIRST NATIONAL PLAZA STE 3800
		CITY:			CHICGO
		STATE:			IL
		ZIP:			60602
		BUSINESS PHONE:		3128951000

	MAIL ADDRESS:	
		STREET 1:		THREE FIRST NATIONAL PLAZA STE 3800
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MADISON DEARBORN CAPITAL PARTNERS IV LP
		CENTRAL INDEX KEY:			0001122443
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35805
		FILM NUMBER:		14669800

	BUSINESS ADDRESS:	
		STREET 1:		THREE FIRST NATIONAL PLAZA
		STREET 2:		STE 3800
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FOREST PRODUCTS HOLDINGS, L.L.C.
		CENTRAL INDEX KEY:			0001326831
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35805
		FILM NUMBER:		14669801

	BUSINESS ADDRESS:	
		STREET 1:		1111 WEST JEFFERSON STREET
		STREET 2:		P. O. BOX 50
		CITY:			BOISE
		STATE:			ID
		ZIP:			83728
		BUSINESS PHONE:		(208) 384-6161

	MAIL ADDRESS:	
		STREET 1:		1111 WEST JEFFERSON STREET
		STREET 2:		P. O. BOX 50
		CITY:			BOISE
		STATE:			ID
		ZIP:			83728
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>4
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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2014-03-03</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001328581</issuerCik>
        <issuerName>BOISE CASCADE Co</issuerName>
        <issuerTradingSymbol>BCC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001326831</rptOwnerCik>
            <rptOwnerName>FOREST PRODUCTS HOLDINGS, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MADISON DEARBORN PARTNERS, L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>70 W. MADISON STREET, SUITE 4600</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60602</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001122443</rptOwnerCik>
            <rptOwnerName>MADISON DEARBORN CAPITAL PARTNERS IV LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MADISON DEARBORN PARTNERS, L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>70 W. MADISON STREET, SUITE 4600</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60602</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001249306</rptOwnerCik>
            <rptOwnerName>MADISON DEARBORN PARTNERS IV LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MADISON DEARBORN PARTNERS, L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>70 W. MADISON STREET, SUITE 4600</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60602</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001181100</rptOwnerCik>
            <rptOwnerName>MADISON DEARBORN PARTNERS LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MADISON DEARBORN PARTNERS, L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>70 W. MADISON STREET, SUITE 4600</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60602</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock, par value $0.01</value>
            </securityTitle>
            <transactionDate>
                <value>2014-03-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7785938</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock, par value $0.01</value>
            </securityTitle>
            <transactionDate>
                <value>2014-03-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
                <footnoteId id="F3"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>E</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5468</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5468</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Madison Dearborn Partners, L.L.C. See Footnotes</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On March 3, 2014, Boise Cascade Holdings, L.L.C. (&quot;BC Holdings&quot;) made a pro rata distribution of 7,785,938 shares of Boise Cascade Company's common stock, par value $0.01 per share (collectively, the &quot;Shares&quot;), to its members for no consideration.  Forest Products Holdings, L.L.C. (&quot;FPH&quot;), BC Holdings' controlling equityholder, then made a pro rata distribution for no consideration of 6,228,265 Shares to its members, including its controlling equity holder Madison Dearborn Capital Partners IV, L.P. (&quot;MDCP IV&quot;).  MDCP IV then made a pro rata distribution for no consideration of the Shares it received from FPH to Madison Dearborn Partners IV, L.P., its general partner (&quot;MDP IV&quot;), and to its limited partners.  Finally, MDP IV made a pro rata distribution for no consideration of the Shares it received from MDCP IV to its partners on the same date (the &quot;MDP IV Distribution&quot;).</footnote>
        <footnote id="F2">Prior to giving effect to the distributions described in Note 1 above, BC Holdings was the record holder of the Shares. The reporting persons previously reported the Shares as indirectly owned through BC Holdings.</footnote>
        <footnote id="F3">In the MDP IV Distribution, Madison Dearborn Partners, L.L.C., MDP IV's general partner (&quot;MDP LLC&quot;), received 5,468 Shares.  The acquisition of such Shares by MDP LLC was exempt under Rule 16a-9 and Rule 16a-13.</footnote>
        <footnote id="F4">Each of the reporting persons (other than MDP LLC) hereby disclaims beneficial ownership of any shares of the issuer's common stock held by MDP LLC, except to the extent of its pecuniary interest therein, and the inclusion of such shares in this report should not be deemed an admission that it is the beneficial owner of such shares for purposes of Section 16 or for any other purpose.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Forest Products Holdings, L.L.C., by /s/ Mark B. Tresnowski, Attorney-in-Fact</signatureName>
        <signatureDate>2014-03-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Madison Dearborn Capital Partners IV, L.P., by Madison Dearborn Partners IV, L.P., its General Partner, by Madison Dearborn Partners, LLC, its General Partner, by /s/ Mark B. Tresnowski, Managing Director</signatureName>
        <signatureDate>2014-03-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Madison Dearborn Partners IV, L.P., by Madison Dearborn Partners, LLC, its General Partner, by /s/ Mark B. Tresnowski, Managing Director</signatureName>
        <signatureDate>2014-03-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Madison Dearborn Partners, LLC, by /s/ Mark B. Tresnowski, Managing Director</signatureName>
        <signatureDate>2014-03-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
