<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-02-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000106535</issuerCik>
        <issuerName>WEYERHAEUSER CO</issuerName>
        <issuerTradingSymbol>WY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001224763</rptOwnerCik>
            <rptOwnerName>TAGGART RICHARD J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P. O. BOX 9777</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FEDERAL WAY</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>980639777</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Vice President &amp; CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Share Equivalents</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-02-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>I</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>113</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>67.3500</value>
                    <footnoteId id="F5"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>113</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15313</value>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">1 for 1</footnote>
        <footnote id="F2">Dispositon of common share equivalents for cash in accordance with an election made by the reporting person on January 1, 1996.</footnote>
        <footnote id="F3">Immediate</footnote>
        <footnote id="F4">The common share equivalents were acquired pursuant to the Weyerhaeuser Company Comprehensive Incentive Compensation Plan and are to be settled 100% in cash upon the reporting persons termination; retirement or on a specified payout date.</footnote>
        <footnote id="F5">Price is based upon on 11-day Median price in accordance with the Plan and range from $66.32 - $70.38.</footnote>
        <footnote id="F6">Reported holdings include shares acquired in dividend reinvestment transactions.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: /s/ Vicki A. Merrick, Attorney-in-fact</signatureName>
        <signatureDate>2006-02-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2006-02-01
0
0000106535
WEYERHAEUSER CO
WY
0001224763
TAGGART RICHARD J
P. O. BOX 9777
FEDERAL WAY
WA
980639777
0
1
0
0
Executive Vice President & CFO
Share Equivalents
2006-02-01
4
I
0
113
67.3500
D
Common
113
15313
D
1 for 1
Dispositon of common share equivalents for cash in accordance with an election made by the reporting person on January 1, 1996.
Immediate
The common share equivalents were acquired pursuant to the Weyerhaeuser Company Comprehensive Incentive Compensation Plan and are to be settled 100% in cash upon the reporting persons termination; retirement or on a specified payout date.
Price is based upon on 11-day Median price in accordance with the Plan and range from $66.32 - $70.38.
Reported holdings include shares acquired in dividend reinvestment transactions.
By: /s/ Vicki A. Merrick, Attorney-in-fact
2006-02-01