-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 AaqYV1PC7UtyJVpw7LhnC1M0iKRBDRSLu6n/7c6lPEAgmHCRtsa4Hj5Ny3jr86w+
 60dpBCyPKh8rdUoOjT2Obg==

<SEC-DOCUMENT>0001209191-05-002571.txt : 20050110
<SEC-HEADER>0001209191-05-002571.hdr.sgml : 20050110
<ACCEPTANCE-DATETIME>20050110183708
ACCESSION NUMBER:		0001209191-05-002571
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050110
FILED AS OF DATE:		20050110
DATE AS OF CHANGE:		20050110

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HOWELL LEO A
		CENTRAL INDEX KEY:			0001186708

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04304
		FILM NUMBER:		05521904

	MAIL ADDRESS:	
		STREET 1:		P O BOX 37
		STREET 2:		140 HARRISON ROAD
		CITY:			MADISONVILLE
		STATE:			TN
		ZIP:			37354

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMMERCIAL METALS CO
		CENTRAL INDEX KEY:			0000022444
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		IRS NUMBER:				750725338
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0831

	BUSINESS ADDRESS:	
		STREET 1:		6565 N. MACARTHUR BLVD., SUITE 800
		STREET 2:		P O BOX 1046
		CITY:			IRVING
		STATE:			TX
		ZIP:			75039
		BUSINESS PHONE:		2146894300

	MAIL ADDRESS:	
		STREET 1:		6565 N. MACARTHUR BLVD., SUITE 800
		STREET 2:		PO BOX 1046
		CITY:			IRVING
		STATE:			TX
		ZIP:			75039
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bod21630_bod1alh.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-01-10</periodOfReport>

    <issuer>
        <issuerCik>0000022444</issuerCik>
        <issuerName>COMMERCIAL METALS CO</issuerName>
        <issuerTradingSymbol>CMC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001186708</rptOwnerCik>
            <rptOwnerName>HOWELL LEO A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>BOX 99</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>QUICKSBURG</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22847</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP &amp; Howell Metal Co. Pres.</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-01-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>15200</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.675</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>13040</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>186116</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Includes the additional shares to be delivered to the buyer pursuant to due bills attributable to the 2 for 1 stock split in the form of a stock dividend to holders of record December 13, 2004 to be distributed January 10, 2005.</footnote>
        <footnote id="F2">The per share price has been adjusted to reflect the per share price for all shares, including those represented by due bills resulting from the 2 for 1 stock split in the form of a stock dividend to holders of record December 13, 2004 to be distributed January 10, 2005.</footnote>
        <footnote id="F3">Includes the additional shares resulting from the 2 for 1 stock split in the form of a stock dividend to holders of record December 13, 2004 to be distributed January 10, 2005.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: DAVID M. SUDBURY For: A. LEO HOWELL</signatureName>
        <signatureDate>2005-01-10</signatureDate>
    </ownerSignature>
</ownershipDocument>

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