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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Ld0BabVG2cRgq0gs1/tqG4hucqprb5l+pFIpFQaGeeWiwPx21dGKyuB1JIQ6TVzw
 Atdnk0NRv9AGVjb+LvP56w==

<SEC-DOCUMENT>0001209191-03-018769.txt : 20030825
<SEC-HEADER>0001209191-03-018769.hdr.sgml : 20030825
<ACCEPTANCE-DATETIME>20030825145251
ACCESSION NUMBER:		0001209191-03-018769
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030822
FILED AS OF DATE:		20030825

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ELKCORP
		CENTRAL INDEX KEY:			0000032017
		STANDARD INDUSTRIAL CLASSIFICATION:	ASPHALT PAVING & ROOFING MATERIALS [2950]
		IRS NUMBER:				751217920
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		14643 DALLAS PKWY STE 1000
		STREET 2:		WELLINGTON CTR
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75254-8890
		BUSINESS PHONE:		9728510500

	MAIL ADDRESS:	
		STREET 1:		WELLINGTON CENTRE STE 1000
		STREET 2:		14643 DALLAS PKWY
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75254-8890

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ELCOR CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ELCOR CHEMICAL CORP
		DATE OF NAME CHANGE:	19761119

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WAIBEL JAMES J
		CENTRAL INDEX KEY:			0001023182

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05341
		FILM NUMBER:		03864210

	BUSINESS ADDRESS:	
		STREET 1:		14643 DALLAS PKWY
		STREET 2:		STE 1000
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-8871
		BUSINESS PHONE:		2148510500

	MAIL ADDRESS:	
		STREET 1:		14643 DALLAS PKWY
		STREET 2:		STE 1000
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240-8871
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bod08325_bod3jjw.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-22</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000032017</issuerCik><issuerName>ELKCORP</issuerName>        <issuerTradingSymbol>ELK</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001023182</rptOwnerCik><rptOwnerName>WAIBEL JAMES J</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1></rptOwnerStreet1><rptOwnerStreet2>SUITE 600</rptOwnerStreet2><rptOwnerCity>DALLAS</rptOwnerCity><rptOwnerState>TX</rptOwnerState><rptOwnerZipCode>75254</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Sr. V.P., Administration</officerTitle></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeT
ransaction><securityTitle><value>Incentive Stock Option (Right to Buy)</value><footnoteId id="F1" /></securityTitle><conversionOrExercisePrice><value>22.61</value></conversionOrExercisePrice><transactionDate><value>2003-08-22</value><footnoteId id="F2" /></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>16000</value></transactionShares><transactionPricePerShare><value>22.61</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-07-01</value><footnoteId id="F3" /></exerciseDate><expirationDate><value>2013-06-30</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>16000</value></underlyingSecurityShares></underlyingSecurity><postTr
ansactionAmounts><sharesOwnedFollowingTransaction><value>57402.75</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Granted under the 2002 ElkCorp Equity Incentive Compensation Plan.</footnote><footnote id="F2">The option was approved by the Board of Directors on July 1, 2003, subject to a contingency which lapsed on August 22, 2003.</footnote><footnote id="F3">The option vests in five (5) equal annual increments, beginning July 1, 2004.</footnote></footnotes><ownerSignature><signatureName>/s/ James J. Waibel</signatureName><signatureDate>2003-08-22</signatureDate></ownerSignature></ownershipDocument>

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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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