<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-05-21</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000037651</issuerCik>
        <issuerName>FLORIDA ROCK INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>FRI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001190087</rptOwnerCik>
            <rptOwnerName>BAKER EDWARD L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Common Stock</value>
        </securityTitle>
        <transactionDate>
            <value>2003-05-21</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>5</transactionFormType>
            <transactionCode>G</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value>E</value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>50000</value>
                <footnoteId id="F1"/>
            </transactionShares>
            <transactionValue>
                <value>0</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>D</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>7747</value>
                <footnoteId id="F2"/>
                <footnoteId id="F3"/>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <footnotes>
        <footnote id="F1">The reporting person gave 50,000 shares to his wife, Ann McDonald Baker.  She now holds 56,046 shares.</footnote>
        <footnote id="F2">The amount of securities beneficially owned by the reporting person following reported transaction:

(a) The reporting person owns 7,747 shares directly.
(b) The reporting person gave 50,000 shares to his wife, Ann McDonald Baker.  She now holds 56,046 shares.
(c) 228,350 shares are held in the Edward L'Engle Baker Living Trust, for which the reporting person serves as trustee.
(d) 5,622,258 shares are held by Baker Holdings, L.P., formerly known as Baker Investments, Ltd.  The reporting person shares voting and dispositive power and has a pecuniary interest in 1,904,085 shares.  The reporting person disclaims beneficial interest in these shares except to the extent of his pecuniary interest therein.
(e) 171,495 shares are held by trusts for benefit of the children of John D. Baker II.  The reporting person serves as trustee of these trusts but disclaims beneficial ownership of these shares.</footnote>
        <footnote id="F3">Continuation of amount of securities beneficially owned by the reporting person following reported transaction:

(f) 2,592 shares are held by STABANCO, nominee of SunTrust Bank, in a fiduciary account (in a trust in which SunTrust Bank and the reporting person are trustees) but to which the reporting person has potential income rights.
(g) 67,255 shares are held as beneficiary of the issuer's Employee Benefit Plan (401(k) Profit Sharing Plan) as of the most recent available valuation date, including TRAESOP plan balances which were combined with 401(k) plan amounts beginning October 1, 2002.
(h) 1,422 shares directly held that have been acquired under the issuer's Employee Stock Purchase Plan that are exempt from Section 16(b) pursuant to Rule 16(b)(3a).</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Daniel B. Nunn, Jr., Attorney-in-Fact for Edward L. Baker</signatureName>
        <signatureDate>2003-05-21</signatureDate>
    </ownerSignature>

</ownershipDocument>

