-----BEGIN PRIVACY-ENHANCED MESSAGE-----
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,
 GWaCp1rmTdsudupkgpvAE1oW1HN6nlPpELJ2jTGpQ+7BvRtCjQof8TfuEwvtCcXJ
 IwxfB+JCdhJ2YyzkrVFQBA==

<SEC-DOCUMENT>0000879526-10-000038.txt : 20100624
<SEC-HEADER>0000879526-10-000038.hdr.sgml : 20100624
<ACCEPTANCE-DATETIME>20100624154402
ACCESSION NUMBER:		0000879526-10-000038
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100325
FILED AS OF DATE:		20100624
DATE AS OF CHANGE:		20100624

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ehrlich Rodney P
		CENTRAL INDEX KEY:			0001291755

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10883
		FILM NUMBER:		10915032

	MAIL ADDRESS:	
		STREET 1:		1000 SAGAMORE PARKWAY SOUTH
		CITY:			LAFAYETTE
		STATE:			IN
		ZIP:			47905

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WABASH NATIONAL CORP /DE
		CENTRAL INDEX KEY:			0000879526
		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCK TRAILERS [3715]
		IRS NUMBER:				521375208
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1000 SAGAMORE PARKWAY SOUTH
		CITY:			LAFAYETTE
		STATE:			IN
		ZIP:			47905
		BUSINESS PHONE:		7657715310

	MAIL ADDRESS:	
		STREET 1:		1000 SAGAMORE PARKWAY SOUTH
		CITY:			LAFAYETTE
		STATE:			IN
		ZIP:			47905
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-03-25</periodOfReport>

    <issuer>
        <issuerCik>0000879526</issuerCik>
        <issuerName>WABASH NATIONAL CORP /DE</issuerName>
        <issuerTradingSymbol>WNC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001291755</rptOwnerCik>
            <rptOwnerName>Ehrlich Rodney P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 SAGAMORE PARKWAY SOUTH</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAFAYETTE</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>47905</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr.VP/Chief Technology Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Performance Unit</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>7.44</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-03-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>8500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2013-03-25</value>
            </exerciseDate>
            <expirationDate>
                <value>2020-03-25</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Grantee is entitled to receive units on the exercise date, the number of units of which will be determined by measurement of the Corporation's achievement of certain financial goals, to be redeemed and paid in cash at a per unit amount equal to the lesser of $7.44 or the price of the Corporation's common stock at the close of business on the exercise date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Rodney P. Ehrlich</signatureName>
        <signatureDate>2010-06-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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