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

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-02-16</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000821407</issuerCik>
        <issuerName>WOLVERINE TUBE INC</issuerName>
        <issuerTradingSymbol>WLVT.PK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000004164</rptOwnerCik>
            <rptOwnerName>ALPINE GROUP INC /DE/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE MEADOWLANDS PLAZA, SUITE 801</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>EAST RUTHERFORD</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07073</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series A Convertible Preferred Stock, par value $1.00</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.10</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>9090909</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Series A Convertible Stock (the &quot;Preferred Stock&quot;) is convertible at any time, in whole or in part, on or after February 16, 2007 with no expiration date, at the holder's election, at a conversion price which shall initially be $1.10 per share and which is subject to customary anti-dilution adjustments (the &quot;Conversion Price&quot;), and each share of Preferred Stock shall be convertible into a number of shares of common stock (the &quot;Common Stock&quot; ) of Wolverine Tube, Inc. (the &quot;Issuer&quot;) equal to $1,000 divided by the Conversion Price.  The Preferred Stock is redeemable at par plus any accrued and unpaid dividends on January 31, 2017, and upon the occurrence of certain change of control transactions that are not approved by at least five of the members of the Issuer's board of directors.  The Issuer may redeem all, but not less than all, of the Preferred Stock at its option, at par plus any accrued and unpaid dividends, at any time on or after January 31, 2014, subject to certain conditions.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Stewart H. Wahrsager, Senior Vice President, General Counsel and Corporate Secretary</signatureName>
        <signatureDate>2007-02-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
