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  <xsd:element abstract="true" id="apog_DebtTextualAbstract" name="DebtTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_DeductiblePortionofGoodwillPercentage" name="DeductiblePortionofGoodwillPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_DeferredCompensationObligationMember" name="DeferredCompensationObligationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesCurrent" name="DeferredTaxAssetsLiabilitiesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesGoodwillAndIntangibleAssetsCurrent" name="DeferredTaxAssetsLiabilitiesGoodwillAndIntangibleAssetsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesGoodwillAndIntangibleAssetsNonCurrent" name="DeferredTaxAssetsLiabilitiesGoodwillAndIntangibleAssetsNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesNoncurrent" name="DeferredTaxAssetsLiabilitiesNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesOtherCurrent" name="DeferredTaxAssetsLiabilitiesOtherCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesOtherNonCurrent" name="DeferredTaxAssetsLiabilitiesOtherNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesPropertyPlantAndEquipmentCurrent" name="DeferredTaxAssetsLiabilitiesPropertyPlantAndEquipmentCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesPropertyPlantAndEquipmentNonCurrent" name="DeferredTaxAssetsLiabilitiesPropertyPlantAndEquipmentNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostCurrent" name="DeferredTaxAssetsLiabilitiesTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNonCurrent" name="DeferredTaxAssetsLiabilitiesTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsCurrent" name="DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsNonCurrent" name="DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsOtherCurrent" name="DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsOtherCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsOtherNonCurrent" name="DeferredTaxAssetsLiabilitiesTaxDeferredExpenseReservesAndAccrualsOtherNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsOperatingLossCarryforwardsCurrent" name="DeferredTaxAssetsOperatingLossCarryforwardsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DeferredTaxAssetsOperatingLossCarryforwardsNonCurrent" name="DeferredTaxAssetsOperatingLossCarryforwardsNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_DefinedContributionPlanEmployerContributionAmount" name="DefinedContributionPlanEmployerContributionAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_DefinedContributionPlanEmployerContributionMatchLevelBasedOnEmployeeContributionAxis" name="DefinedContributionPlanEmployerContributionMatchLevelBasedOnEmployeeContributionAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_DefinedContributionPlanEmployerContributionMatchLevelBasedOnEmployeeContributionDomain" name="DefinedContributionPlanEmployerContributionMatchLevelBasedOnEmployeeContributionDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount" name="EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="apog_FiniteLivedIdentifiableIntangibleAssetsTranslationAdjustments" name="FiniteLivedIdentifiableIntangibleAssetsTranslationAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="apog_FirstOnePercentMember" name="FirstOnePercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_FiscalTimePeriod" name="FiscalTimePeriod" nillable="true" substitutionGroup="xbrli:item" type="us-types:durationStringItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_Grossproceedsfromnewmarketstaxcredits" name="Grossproceedsfromnewmarketstaxcredits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="apog_Grossproceedsfromnewmarketstaxcredittransaction" name="Grossproceedsfromnewmarketstaxcredittransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="apog_IndefinitelivedIntangibleAssetsExcludingGoodwillNetoftranslationadjustments" name="IndefinitelivedIntangibleAssetsExcludingGoodwillNetoftranslationadjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_IntangibleAssetLifeMaximum" name="IntangibleAssetLifeMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_IntangibleAssetLifeMinimum" name="IntangibleAssetLifeMinimum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_IntangibleAssetsAccumulatedAmortization" name="IntangibleAssetsAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="apog_IntangibleAssetsForeignCurrencyTranslation" name="IntangibleAssetsForeignCurrencyTranslation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="apog_LargeScaleOpticalMember" name="LargeScaleOpticalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_LargeScaleOpticalSegmentMember" name="LargeScaleOpticalSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_MutualFundInvestments" name="MutualFundInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_NumberOfManufacturingFacilitiesThatUnionEmployeesAreCoveredWith401KPlan" name="NumberOfManufacturingFacilitiesThatUnionEmployeesAreCoveredWith401KPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="apog_NumberOfPropertiesAcquiredWithHistoricalEnvironmentalConditions" name="NumberOfPropertiesAcquiredWithHistoricalEnvironmentalConditions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_NumberOfSaleAndLeasebackAgreements" name="NumberOfSaleAndLeasebackAgreements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="apog_OtherCurrentAndOtherNoncurrentLiabilitiesMember" name="OtherCurrentAndOtherNoncurrentLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_OtherReceivablesMember" name="OtherReceivablesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_PercentageOfNetSalesRecordedOnPercentageOfCompletionBasis" name="PercentageOfNetSalesRecordedOnPercentageOfCompletionBasis" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_PerformancePeriodForPercentageOfCompletionContracts" name="PerformancePeriodForPercentageOfCompletionContracts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts" name="Proceedsfromnewmarketstaxcredittransactionnetofdeferredcosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="apog_RecoveryZoneFacilityBondsMember" name="RecoveryZoneFacilityBondsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_ReportingPeriodMonthlyLag" name="ReportingPeriodMonthlyLag" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_ScheduleOfInterestExpenseTableTextBlock" name="ScheduleOfInterestExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_ShareRepurchaseProgramMember" name="ShareRepurchaseProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_SharesWithheldForTaxesNetOfStockIssuedToEmployees" name="SharesWithheldForTaxesNetOfStockIssuedToEmployees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_SotawallMember" name="SotawallMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_StockOptionAndSarsTerm" name="StockOptionAndSarsTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_StockOptionsAndStockAppreciationRightsMember" name="StockOptionsAndStockAppreciationRightsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased" name="StockRepurchaseProgramAdditionalNumberOfSharesAuthorizedToBeRepurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_TwoThousandAndNineNonEmployeeDirectorStockIncentivePlanMember" name="TwoThousandAndNineNonEmployeeDirectorStockIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_TwoThousandAndNineStockIncentivePlanMember" name="TwoThousandAndNineStockIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="apog_TwoThroughSixPercentMember" name="TwoThroughSixPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_UnrecognizedTaxBenefitsCurrent" name="UnrecognizedTaxBenefitsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_UnrecognizedTaxBenefitsNonCurrent" name="UnrecognizedTaxBenefitsNonCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="apog_UnrecognizedTaxBenefitsReductionsResultingFromSettlementsWithTaxingAuthoritiesAndLapseOfApplicableStatuteOfLimitations" name="UnrecognizedTaxBenefitsReductionsResultingFromSettlementsWithTaxingAuthoritiesAndLapseOfApplicableStatuteOfLimitations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="apog_UnrecognizedTaxBenefitsThatWouldResultInAdjustmentsToDeferredTaxes" name="UnrecognizedTaxBenefitsThatWouldResultInAdjustmentsToDeferredTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="apog_WorkingCapitalAbstract" name="WorkingCapitalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="apog_WorkingCapitalTextBlock" name="WorkingCapitalTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
</xsd:schema>





