-----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,
 BI7B6Qokqxu2RxO2JfwMCBAmfcZYl2wVt5LY9XkLlGM9XBoCl06aEYHKWFgbahKh
 riA49MH4Qw8y8TqC2T5mGg==

<SEC-DOCUMENT>0000058492-03-000186.txt : 20030506
<SEC-HEADER>0000058492-03-000186.hdr.sgml : 20030506
<ACCEPTANCE-DATETIME>20030506094808
ACCESSION NUMBER:		0000058492-03-000186
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030502
FILED AS OF DATE:		20030506

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LEGGETT & PLATT INC
		CENTRAL INDEX KEY:			0000058492
		STANDARD INDUSTRIAL CLASSIFICATION:	HOUSEHOLD FURNITURE [2510]
		IRS NUMBER:				440324630
		STATE OF INCORPORATION:			MO
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		NO. 1 LEGGETT ROAD
		CITY:			CARTHAGE
		STATE:			MO
		ZIP:			64836
		BUSINESS PHONE:		(417) 358-8131

	MAIL ADDRESS:	
		STREET 1:		NO. 1 LEGGETT ROAD
		CITY:			CARTHAGE
		STATE:			MO
		ZIP:			64836

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FLANIGAN MATTEW C
		CENTRAL INDEX KEY:			0001229884

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07845
		FILM NUMBER:		03683255

	BUSINESS ADDRESS:	
		STREET 1:		LEGGETT & PLATT INC
		STREET 2:		NO 1 LEGGETT ROAD
		CITY:			CARTHAGE
		STATE:			MO
		ZIP:			64836
		BUSINESS PHONE:		4173588131

	MAIL ADDRESS:	
		STREET 1:		LEGGETT & PLATT INC
		STREET 2:		NO 1 LEGGETT ROAD
		CITY:			CARTHAGE
		STATE:			MO
		ZIP:			64836
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001229884d20030506f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument>    <schemaVersion>X0101</schemaVersion><documentType>4</documentType><periodOfReport>2003-05-02</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000058492</issuerCik>        <issuerName>LEGGETT &amp; PLATT INC</issuerName><issuerTradingSymbol>LEG</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001229884</rptOwnerCik>            <rptOwnerName>FLANIGAN MATTEW C</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>Vice President - CFO</officerTitle><otherText></otherText></reportingOwnerRelationshi
p></reportingOwner><nonDerivativeSecurity><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-05-02</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>60</value></transactionShares><transactionValue><value>17.54</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6645</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeSecurity><footnotes></footnotes><ownerSignature><signatureName>John A. Lyckman</signatureName
><signatureDate>2003-05-06</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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