<SEC-DOCUMENT>0001209191-21-034028.txt : 20210519
<SEC-HEADER>0001209191-21-034028.hdr.sgml : 20210519
<ACCEPTANCE-DATETIME>20210519165544
ACCESSION NUMBER:		0001209191-21-034028
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210517
FILED AS OF DATE:		20210519
DATE AS OF CHANGE:		20210519

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Haack Michael
		CENTRAL INDEX KEY:			0001626900

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12984
		FILM NUMBER:		21940968

	MAIL ADDRESS:	
		STREET 1:		3811 TURTLE CREEK BLVD., SUITE 1100
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75219

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EAGLE MATERIALS INC
		CENTRAL INDEX KEY:			0000918646
		STANDARD INDUSTRIAL CLASSIFICATION:	CEMENT, HYDRAULIC [3241]
		IRS NUMBER:				752520779
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		5960 BERKSHIRE LANE
		STREET 2:		SUITE 900
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225
		BUSINESS PHONE:		214-432-2000

	MAIL ADDRESS:	
		STREET 1:		5960 BERKSHIRE LANE
		STREET 2:		SUITE 900
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75225

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CENTEX CONSTRUCTION PRODUCTS INC
		DATE OF NAME CHANGE:	19940204
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-05-17</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000918646</issuerCik>
        <issuerName>EAGLE MATERIALS INC</issuerName>
        <issuerTradingSymbol>EXP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001626900</rptOwnerCik>
            <rptOwnerName>Haack Michael</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5960 BERKSHIRE LN, STE 900</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75225</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-05-17</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1716</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>151.63</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>62957</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">In accordance with the issuer's Amended and Restated Incentive Plan, this price represents the closing price per share of Common Stock on the previous trading day.</footnote>
        <footnote id="F2">1,716 shares were withheld by the issuer to satisfy income tax withholding requirements related to the lapsing of restrictions on 4,360 shares of restricted stock awarded to the reporting person on May 19, 2020 (Form 4 filed on 5/10/2021). Because the reporting person's restricted stock holdings have been included in the direct ownership of Common Stock disclosed by the reporting person, the reporting person's direct ownership of Common Stock has been reduced by 1,716 shares to reflect this tax withholding.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Scott M. Wilson as Attorney-in-Fact for Michael R. Haack</signatureName>
        <signatureDate>2021-05-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
