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

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-09-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000885307</issuerCik>
        <issuerName>JEWETT CAMERON TRADING CO LTD</issuerName>
        <issuerTradingSymbol>JCTC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002148810</rptOwnerCik>
            <rptOwnerName>Kotarba Scott</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>1827 BROKEN BEND DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WESTLAKE</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>76262</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-09-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>176006</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.85</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>176006</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Kotarba Partners Fund I, LP</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Obligation to Buy (Initial Purchase)</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.85</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-09-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F4"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>176006</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2026-08-06</value>
            </exerciseDate>
            <expirationDate>
                <value>2026-09-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>176006</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Kotarba Partners Fund I, LP</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents 176,006 shares of common stock acquired by Kotarba Partners Fund I, LP from The Oregon Community Foundation at the Initial Closing on September 28, 2026, at a price of $1.85 per share, pursuant to the Purchase and Sale Agreement dated August 6, 2026 (the &quot;Purchase Agreement&quot;). The shares are held of record by Kotarba Partners Fund I, LP.</footnote>
        <footnote id="F2">The securities reported herein are held of record by Kotarba Partners Fund I, LP. Kotarba Partners &amp; Co, LLC is the general partner of Kotarba Partners Fund I, LP, and Scott Kotarba is the Managing Member of Kotarba Partners &amp; Co, LLC. Mr. Kotarba disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the filing of this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F3">Represents the previously reported obligation of Kotarba Partners Fund I, LP to purchase 176,006 shares of common stock at $1.85 per share at the Initial Closing under the Purchase Agreement, as reported on the Form 4 filed August 10, 2026.</footnote>
        <footnote id="F4">The Initial Purchase obligation was settled on September 28, 2026 upon the consummation of the Initial Closing under the Purchase Agreement, at which time Kotarba Partners Fund I, LP acquired the underlying 176,006 shares of common stock as reflected in Table I above.</footnote>
        <footnote id="F5">Following the Initial Closing reported on this Form, Kotarba Partners Fund I, LP retains options under the Purchase Agreement to purchase up to an additional 562,528 shares from The Oregon Community Foundation, exercisable through March 31, 2028. These consist of (i) an option to purchase 176,006 shares at $1.85 per share, and (ii) an option to purchase up to 386,522 shares at a price equal to 85% of the volume weighted average price of the Issuer's common stock as reported on Nasdaq for the thirty consecutive trading days ending on the last business day immediately prior to the applicable closing date, subject to a minimum price of $1.85 per share and a maximum price of $4.00 per share. These options were previously reported on the Form 4 filed August 10, 2026 and the Schedule 13D filed August 17, 2026.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Steven Taylor, Attorney-in-Fact for Scott S. Kotarba</signatureName>
        <signatureDate>2026-10-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
