-----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,
 BYj5AtNloAgrKXdSwer3LckSVTH4keDR4Us3isemOSgpvsXefnN8SwUUJCCiX890
 9sMQ80GxKy+0TGn+Mud68Q==

<SEC-DOCUMENT>0001185260-03-000006.txt : 20030515
<SEC-HEADER>0001185260-03-000006.hdr.sgml : 20030515
<ACCEPTANCE-DATETIME>20030515113641
ACCESSION NUMBER:		0001185260-03-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030513
FILED AS OF DATE:		20030515

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LOWE ROBERT F
		CENTRAL INDEX KEY:			0001185260

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11448
		FILM NUMBER:		03702090

	BUSINESS ADDRESS:	
		STREET 1:		C/O LEXINGTON STATE BANK
		STREET 2:		867
		CITY:			LEXINGTON
		STATE:			NC
		ZIP:			27293
		BUSINESS PHONE:		3362486500

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LSB BANCSHARES INC /NC/
		CENTRAL INDEX KEY:			0000714530
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				561348147
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 867
		STREET 2:		ONE LSB PLZ
		CITY:			LEXINGTON
		STATE:			NC
		ZIP:			27293-0867
		BUSINESS PHONE:		9102486500

	MAIL ADDRESS:	
		STREET 1:		P O BOX 867
		CITY:			LEXINGTON
		STATE:			NC
		ZIP:			27293-0867
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-05-13</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000714530</issuerCik>
        <issuerName>LSB BANCSHARES INC /NC/</issuerName>
        <issuerTradingSymbol>lxbk</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001185260</rptOwnerCik>
            <rptOwnerName>LOWE ROBERT F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>LSB Bancshares</value>
        </securityTitle>
        <transactionDate>
            <value>2003-05-13</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>D</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>2400</value>
                <footnoteId id="F1"/>
            </transactionShares>
            <transactionValue>
                <value>16.2087</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>D</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>51973</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>LSB Bancshares</value>
        </securityTitle>
        <transactionDate>
            <value>2003-05-14</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>4</transactionFormType>
            <transactionCode>D</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value></value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>5300</value>
                <footnoteId id="F1"/>
            </transactionShares>
            <transactionValue>
                <value>15.85</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>D</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>46673</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <footnotes>
        <footnote id="F1">SALE OF OPTIONED SHARES TO COVER THE EXPENSE OF EXERCISING OTHER INCENTIVE STOCK OPTIONS.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Robert F. Lowe</signatureName>
        <signatureDate>2003-05-15</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----