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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 BECXwJALC3lcJoJINzZR9wEXhMGMDtH6NCiMnmcNPdZrL/DUpDKO2/TdI42/MFnL
 dH7Le+kNu58bCHiCwTn/wg==

<SEC-DOCUMENT>0000058492-03-000336.txt : 20030922
<SEC-HEADER>0000058492-03-000336.hdr.sgml : 20030922
<ACCEPTANCE-DATETIME>20030922150646
ACCESSION NUMBER:		0000058492-03-000336
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030919
FILED AS OF DATE:		20030922

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JETT ERNES C
		CENTRAL INDEX KEY:			0001166172

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07845
		FILM NUMBER:		03904135

	BUSINESS ADDRESS:	
		STREET 1:		NO 1 LEGGETT RD
		CITY:			CARTHAGE
		STATE:			MO
		ZIP:			64836
		BUSINESS PHONE:		417 358 8131

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001166172d20030922f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-09-19</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000058492</issuerCik><issuerName>LEGGETT &amp; PLATT INC</issuerName>        <issuerTradingSymbol>LEG</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001166172</rptOwnerCik><rptOwnerName>JETT ERNES C</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>NO 1 LEGGETT ROAD</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>CARTHAGE</rptOwnerCity><rptOwnerState>MO</rptOwnerState><rptOwnerZipCode>64836</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Vice President, General Counse</officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwn
er><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-09-19</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>60</value></transactionShares><transactionPricePerShare><value>19.3</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>67570</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeH
olding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>48100</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>Held in Trust under Issuer's Retirement Plan</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable></derivativeTable><footnotes></footnotes><ownerSignature><signatureName>John A. Lyckman</signatureName><signatureDate>2003-09-22</signatureDate></ownerSignature></ownershipDocument>

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