<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:bb29a2b2-bc37-4995-9ec2-d42a8bdf7b83,g:5f7a75a4-8828-42e7-9e14-b96ccfb3346c-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nx="http://www.quanexbuildingproducts.com/20211031" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.quanexbuildingproducts.com/20211031">
  <xs:import namespace="http://fasb.org/srt/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2021" schemaLocation="https://xbrl.sec.gov/country/2021/country-2021.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2021" schemaLocation="https://xbrl.sec.gov/dei/2021/dei-2021.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="nx-20211031_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="nx-20211031_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="nx-20211031_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="nx-20211031_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.quanexbuildingproducts.com/role/Cover">
        <link:definition>0001001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedBalanceSheets">
        <link:definition>1001002 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsParenthetical" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedBalanceSheetsParenthetical">
        <link:definition>1002003 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofIncomeLoss" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedStatementsofIncomeLoss">
        <link:definition>1003004 - Statement - Consolidated Statements of Income (Loss)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofIncomeLossParenthetical" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedStatementsofIncomeLossParenthetical">
        <link:definition>1004005 - Statement - Consolidated Statements of Income (Loss) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofComprehensiveIncomeLoss" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedStatementsofComprehensiveIncomeLoss">
        <link:definition>1005006 - Statement - Consolidated Statements of Comprehensive Income (Loss)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofStockholdersEquity" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedStatementofStockholdersEquity">
        <link:definition>1006007 - Statement - Consolidated Statement of Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementofStockholdersEquityParenthetical" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedStatementofStockholdersEquityParenthetical">
        <link:definition>1007008 - Statement - Consolidated Statement of Stockholders' Equity (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsofCashFlow" roleURI="http://www.quanexbuildingproducts.com/role/ConsolidatedStatementsofCashFlow">
        <link:definition>1008009 - Statement - Consolidated Statements of Cash Flow</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPolicies" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPolicies">
        <link:definition>2101101 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesPolicies" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesPolicies">
        <link:definition>2202201 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesTables" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesTables">
        <link:definition>2303301 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesRevenuefromContractswithCustomersDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesRevenuefromContractswithCustomersDetails">
        <link:definition>2404401 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Revenue from Contracts with Customers (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesConcentrationDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesConcentrationDetails">
        <link:definition>2405402 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Concentration (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesLongLivedAssetsDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesLongLivedAssetsDetails">
        <link:definition>2406403 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Long Lived Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesGoodwillDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesGoodwillDetails">
        <link:definition>2407404 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesIncomeTaxesDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesIncomeTaxesDetails">
        <link:definition>2408405 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesStockBasedCompensationDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesStockBasedCompensationDetails">
        <link:definition>2409406 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Stock-Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesCashFlowDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesCashFlowDetails">
        <link:definition>2410407 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Cash Flow (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesRelatedPartyTransactionsDetails" roleURI="http://www.quanexbuildingproducts.com/role/NatureofOperationsBasisofPresentationandSignificantAccountingPoliciesRelatedPartyTransactionsDetails">
        <link:definition>2411408 - Disclosure - Nature of Operations, Basis of Presentation and Significant Accounting Policies, Related Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReceivablesAllowance" roleURI="http://www.quanexbuildingproducts.com/role/ReceivablesAllowance">
        <link:definition>2112102 - Disclosure - Receivables &amp; Allowance</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReceivablesAllowanceTables" roleURI="http://www.quanexbuildingproducts.com/role/ReceivablesAllowanceTables">
        <link:definition>2313302 - Disclosure - Receivables &amp; Allowance (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReceivablesAllowanceDetails" roleURI="http://www.quanexbuildingproducts.com/role/ReceivablesAllowanceDetails">
        <link:definition>2414409 - Disclosure - Receivables &amp; Allowance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Inventories" roleURI="http://www.quanexbuildingproducts.com/role/Inventories">
        <link:definition>2115103 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoriesTables" roleURI="http://www.quanexbuildingproducts.com/role/InventoriesTables">
        <link:definition>2316303 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoriesDetail" roleURI="http://www.quanexbuildingproducts.com/role/InventoriesDetail">
        <link:definition>2417410 - Disclosure - Inventories (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantEquipment" roleURI="http://www.quanexbuildingproducts.com/role/PropertyPlantEquipment">
        <link:definition>2118104 - Disclosure - Property, Plant &amp; Equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentTables" roleURI="http://www.quanexbuildingproducts.com/role/PropertyPlantandEquipmentTables">
        <link:definition>2319304 - Disclosure - Property, Plant &amp; and Equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentDetails" roleURI="http://www.quanexbuildingproducts.com/role/PropertyPlantandEquipmentDetails">
        <link:definition>2420411 - Disclosure - Property, Plant &amp; and Equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Leases" roleURI="http://www.quanexbuildingproducts.com/role/Leases">
        <link:definition>2121105 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesTables" roleURI="http://www.quanexbuildingproducts.com/role/LeasesTables">
        <link:definition>2322305 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesDetails" roleURI="http://www.quanexbuildingproducts.com/role/LeasesDetails">
        <link:definition>2423412 - Disclosure - Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LeasesDetails_1" roleURI="http://www.quanexbuildingproducts.com/role/LeasesDetails_1">
        <link:definition>2423412 - Disclosure - Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssets" roleURI="http://www.quanexbuildingproducts.com/role/GoodwillandIntangibleAssets">
        <link:definition>2124106 - Disclosure - Goodwill and Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsTables" roleURI="http://www.quanexbuildingproducts.com/role/GoodwillandIntangibleAssetsTables">
        <link:definition>2325306 - Disclosure - Goodwill and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsDetail" roleURI="http://www.quanexbuildingproducts.com/role/GoodwillandIntangibleAssetsDetail">
        <link:definition>2426413 - Disclosure - Goodwill and Intangible Assets (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilities" roleURI="http://www.quanexbuildingproducts.com/role/AccruedLiabilities">
        <link:definition>2127107 - Disclosure - Accrued Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilitiesTables" roleURI="http://www.quanexbuildingproducts.com/role/AccruedLiabilitiesTables">
        <link:definition>2328307 - Disclosure - Accrued Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedLiabilitiesDetails" roleURI="http://www.quanexbuildingproducts.com/role/AccruedLiabilitiesDetails">
        <link:definition>2429414 - Disclosure - Accrued Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCapitalLeaseObligations" roleURI="http://www.quanexbuildingproducts.com/role/DebtandCapitalLeaseObligations">
        <link:definition>2130108 - Disclosure - Debt and Capital Lease Obligations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCapitalLeaseObligationsTables" roleURI="http://www.quanexbuildingproducts.com/role/DebtandCapitalLeaseObligationsTables">
        <link:definition>2331308 - Disclosure - Debt and Capital Lease Obligations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCapitalLeaseObligationsScheduleofDebtObligationsDetails" roleURI="http://www.quanexbuildingproducts.com/role/DebtandCapitalLeaseObligationsScheduleofDebtObligationsDetails">
        <link:definition>2432415 - Disclosure - Debt and Capital Lease Obligations - Schedule of Debt Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCapitalLeaseObligationsNarrativeDetails" roleURI="http://www.quanexbuildingproducts.com/role/DebtandCapitalLeaseObligationsNarrativeDetails">
        <link:definition>2433416 - Disclosure - Debt and Capital Lease Obligations - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCapitalLeaseObligationsScheduleofApplicableMarginsandCommitmentFeesDetails" roleURI="http://www.quanexbuildingproducts.com/role/DebtandCapitalLeaseObligationsScheduleofApplicableMarginsandCommitmentFeesDetails">
        <link:definition>2434417 - Disclosure - Debt and Capital Lease Obligations - Schedule of Applicable Margins and Commitment Fees (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCapitalLeaseObligationsScheduleofDebtMaturitiesDetails" roleURI="http://www.quanexbuildingproducts.com/role/DebtandCapitalLeaseObligationsScheduleofDebtMaturitiesDetails">
        <link:definition>2435418 - Disclosure - Debt and Capital Lease Obligations - Schedule of Debt Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtandCapitalLeaseObligationsScheduleofDebtMaturitiesDetails_1" roleURI="http://www.quanexbuildingproducts.com/role/DebtandCapitalLeaseObligationsScheduleofDebtMaturitiesDetails_1">
        <link:definition>2435418 - Disclosure - Debt and Capital Lease Obligations - Schedule of Debt Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementPlans" roleURI="http://www.quanexbuildingproducts.com/role/RetirementPlans">
        <link:definition>2136109 - Disclosure - Retirement Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementPlansTables" roleURI="http://www.quanexbuildingproducts.com/role/RetirementPlansTables">
        <link:definition>2337309 - Disclosure - Retirement Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RetirementPlansDetail" roleURI="http://www.quanexbuildingproducts.com/role/RetirementPlansDetail">
        <link:definition>2438419 - Disclosure - Retirement Plans (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.quanexbuildingproducts.com/role/IncomeTaxes">
        <link:definition>2139110 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxTables" roleURI="http://www.quanexbuildingproducts.com/role/IncomeTaxTables">
        <link:definition>2340310 - Disclosure - Income Tax (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails" roleURI="http://www.quanexbuildingproducts.com/role/IncomeTaxesDetails">
        <link:definition>2441420 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://www.quanexbuildingproducts.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>2442421 - Disclosure - Income Taxes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://www.quanexbuildingproducts.com/role/CommitmentsandContingencies">
        <link:definition>2143111 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesDetails" roleURI="http://www.quanexbuildingproducts.com/role/CommitmentsandContingenciesDetails">
        <link:definition>2444422 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementofAssetsandLiabilities" roleURI="http://www.quanexbuildingproducts.com/role/FairValueMeasurementofAssetsandLiabilities">
        <link:definition>2145112 - Disclosure - Fair Value Measurement of Assets and Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementofAssetsandLiabilitiesDetails" roleURI="http://www.quanexbuildingproducts.com/role/FairValueMeasurementofAssetsandLiabilitiesDetails">
        <link:definition>2446423 - Disclosure - Fair Value Measurement of Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensation" roleURI="http://www.quanexbuildingproducts.com/role/StockBasedCompensation">
        <link:definition>2147113 - Disclosure - Stock-Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationTables" roleURI="http://www.quanexbuildingproducts.com/role/StockBasedCompensationTables">
        <link:definition>2348311 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockBasedCompensationDetail" roleURI="http://www.quanexbuildingproducts.com/role/StockBasedCompensationDetail">
        <link:definition>2449424 - Disclosure - Stock Based Compensation (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity" roleURI="http://www.quanexbuildingproducts.com/role/StockholdersEquity">
        <link:definition>2150114 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityDetails" roleURI="http://www.quanexbuildingproducts.com/role/StockholdersEquityDetails">
        <link:definition>2451425 - Disclosure - Stockholders' Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherIncomeExpense" roleURI="http://www.quanexbuildingproducts.com/role/OtherIncomeExpense">
        <link:definition>2152115 - Disclosure - Other Income (Expense)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherIncomeExpenseTables" roleURI="http://www.quanexbuildingproducts.com/role/OtherIncomeExpenseTables">
        <link:definition>2353312 - Disclosure - Other Income (Expense) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherIncomeExpenseDetail" roleURI="http://www.quanexbuildingproducts.com/role/OtherIncomeExpenseDetail">
        <link:definition>2454426 - Disclosure - Other Income (Expense) (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://www.quanexbuildingproducts.com/role/SegmentInformation">
        <link:definition>2155116 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://www.quanexbuildingproducts.com/role/SegmentInformationTables">
        <link:definition>2356313 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationDetail" roleURI="http://www.quanexbuildingproducts.com/role/SegmentInformationDetail">
        <link:definition>2457427 - Disclosure - Segment Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShare" roleURI="http://www.quanexbuildingproducts.com/role/EarningsPerShare">
        <link:definition>2158117 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareTables" roleURI="http://www.quanexbuildingproducts.com/role/EarningsPerShareTables">
        <link:definition>2359314 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareDetail" roleURI="http://www.quanexbuildingproducts.com/role/EarningsPerShareDetail">
        <link:definition>2460428 - Disclosure - Earnings Per Share (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedQuarterlyData" roleURI="http://www.quanexbuildingproducts.com/role/UnauditedQuarterlyData">
        <link:definition>2161118 - Disclosure - Unaudited Quarterly Data</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedQuarterlyDataTables" roleURI="http://www.quanexbuildingproducts.com/role/UnauditedQuarterlyDataTables">
        <link:definition>2362315 - Disclosure - Unaudited Quarterly Data (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedQuarterlyDataDetails" roleURI="http://www.quanexbuildingproducts.com/role/UnauditedQuarterlyDataDetails">
        <link:definition>2463429 - Disclosure - Unaudited Quarterly Data (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NewAccountingGuidance" roleURI="http://www.quanexbuildingproducts.com/role/NewAccountingGuidance">
        <link:definition>2164119 - Disclosure - New Accounting Guidance</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingChangesandErrorCorrectionsDetails" roleURI="http://www.quanexbuildingproducts.com/role/AccountingChangesandErrorCorrectionsDetails">
        <link:definition>2465430 - Disclosure - Accounting Changes and Error Corrections (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="nx_PerformanceRestrictedStockUnitsMember" abstract="true" name="PerformanceRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nx_CurrentMaturitiesOfLongTermDebtMember" abstract="true" name="CurrentMaturitiesOfLongTermDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_DefinedBenefitPlanEmployerContributionPercentageMatchOfCompensation" abstract="false" name="DefinedBenefitPlanEmployerContributionPercentageMatchOfCompensation" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_HighqualitycorebondMember" abstract="true" name="HighqualitycorebondMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageExercisePriceAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageExercisePriceAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nx_MinimumIncrementalBorrowing" abstract="false" name="MinimumIncrementalBorrowing" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_Postretirementdefinedbenefitplansnoncurrentliabilities" abstract="false" name="Postretirementdefinedbenefitplansnoncurrentliabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_EUEngineeredComponentsMember" abstract="true" name="EUEngineeredComponentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_RealEstateRelatedLeasesMember" abstract="true" name="RealEstateRelatedLeasesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_NumberofReportableUnitswithGoodwillBalances" abstract="false" name="NumberofReportableUnitswithGoodwillBalances" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nx_OtherForeignCountriesMember" abstract="true" name="OtherForeignCountriesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_LargeCapitalizationMember" abstract="true" name="LargeCapitalizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearOne" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_Accruedotherbusinesstaxes" abstract="false" name="Accruedotherbusinesstaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_EUEngineeredComponentsUnitOneMember" abstract="true" name="EUEngineeredComponentsUnitOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_EarningsPerShareDisclosureTable" abstract="true" name="EarningsPerShareDisclosureTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="nx_PropertyAssetsUsefulLifeTableTextBlock" abstract="false" name="PropertyAssetsUsefulLifeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="nx_EffectiveIncomeTaxRateReconciliationUKPatentBoxBenefitPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationUKPatentBoxBenefitPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_TermLoanFacilityMember" abstract="true" name="TermLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_FenestrationMember" abstract="true" name="FenestrationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesLessThan50PercentAndGreaterThanOrEqualTo20PercentMember" abstract="true" name="ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesLessThan50PercentAndGreaterThanOrEqualTo20PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_EquipmentAndVehiclesMember" abstract="true" name="EquipmentAndVehiclesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_MaximumIncrementalBorrowing" abstract="false" name="MaximumIncrementalBorrowing" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesLessThanNegative20PercentMember" abstract="true" name="ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesLessThanNegative20PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_GreaterThanThreeLeverageRatioMember" abstract="true" name="GreaterThanThreeLeverageRatioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_LeaseTermandDiscountRateLesseeTableTextBlock" abstract="false" name="LeaseTermandDiscountRateLesseeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="nx_InterestRateScenarioDomain" abstract="true" name="InterestRateScenarioDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_NumberOfDefinedContributionPlans" abstract="false" name="NumberOfDefinedContributionPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nx_DebtInstrumentDebtDefaultInterestAccrualRate" abstract="false" name="DebtInstrumentDebtDefaultInterestAccrualRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_NAEngineeredComponentsUnitTwoMember" abstract="true" name="NAEngineeredComponentsUnitTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaid" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaid" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_NumberOfReportingUnitsPerformedQuantitativeAssessment" abstract="false" name="NumberOfReportingUnitsPerformedQuantitativeAssessment" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nx_ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesLessThan20PercentAndGreaterThanOrEqualToNegative20PercentMember" abstract="true" name="ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesLessThan20PercentAndGreaterThanOrEqualToNegative20PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_RelativeTotalShareReturn" abstract="false" name="RelativeTotalShareReturn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="nx_DebtInstrumentRequiredCoverageRatio" abstract="false" name="DebtInstrumentRequiredCoverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="nx_OtherAssetCategoryMember" abstract="true" name="OtherAssetCategoryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_DefinedBenefitPlanFundedUnfundedStatusofPlan" abstract="false" name="DefinedBenefitPlanFundedUnfundedStatusofPlan" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_DefinedBenefitPlanEmployerContributionPercentage" abstract="false" name="DefinedBenefitPlanEmployerContributionPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_RelatedPartyLeaseMember" abstract="true" name="RelatedPartyLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_InternationalMember" abstract="true" name="InternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_DebtInstrumentLiquidityThresholdforLimitationstoTakeEffect" abstract="false" name="DebtInstrumentLiquidityThresholdforLimitationstoTakeEffect" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearThree" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_PercentageOfEmployeesIncludedInPlan" abstract="false" name="PercentageOfEmployeesIncludedInPlan" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_CapitalLeaseObligationsAndOtherMember" abstract="true" name="CapitalLeaseObligationsAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_Capitalleasesinaccumulateddepreciation" abstract="false" name="Capitalleasesinaccumulateddepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_NACabinetComponentsMember" abstract="true" name="NACabinetComponentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_Cumulativeassetretirmentobligation" abstract="false" name="Cumulativeassetretirmentobligation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_LeasesRightofUseAsset" abstract="false" name="LeasesRightofUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_DefinedBenefitPlanExpectedFutureBenefitPayments" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPayments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_TaxCutsandJobsActof2017ExcessTaxBenefits" abstract="false" name="TaxCutsandJobsActof2017ExcessTaxBenefits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_AmountPurchasedUnderPurchaseObligations" abstract="false" name="AmountPurchasedUnderPurchaseObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_ShareBasedCompensationAwardPerformanceCriteriaAxis" abstract="true" name="ShareBasedCompensationAwardPerformanceCriteriaAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="nx_CapitalLeasesinPropertyPlantandEquipment" abstract="false" name="CapitalLeasesinPropertyPlantandEquipment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_SmallcapitilizationMember" abstract="true" name="SmallcapitilizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_A2018CreditFacilityMember" abstract="true" name="A2018CreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearTwo" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_ShareBasedCompensationAwardTrancheFourMember" abstract="true" name="ShareBasedCompensationAwardTrancheFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_Incometaxeffect" abstract="false" name="Incometaxeffect" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_EarningsPerShareDisclosureLineItems" abstract="true" name="EarningsPerShareDisclosureLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nx_PerformanceSharesCashSettlements" abstract="false" name="PerformanceSharesCashSettlements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nx_WoodcraftMember" abstract="true" name="WoodcraftMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_LessThanOneandOneHalfLeverageRatioMember" abstract="true" name="LessThanOneandOneHalfLeverageRatioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearFour" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_ReturnOnNetAssets" abstract="false" name="ReturnOnNetAssets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="nx_CumulativeAssetRetirementObligationDeprecationAndAccretionPeriod" abstract="false" name="CumulativeAssetRetirementObligationDeprecationAndAccretionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="nx_DefinedBenefitPlanAmortizationofGainslossesNet" abstract="false" name="DefinedBenefitPlanAmortizationofGainslossesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_AssetsAndLiabilitiesLesseeTableTextBlock" abstract="false" name="AssetsAndLiabilitiesLesseeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="nx_InventoryReserveRollforwardTableTextBlock" abstract="false" name="InventoryReserveRollforwardTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="nx_BetweenOneandOneHalfandTwoandOneQuarterLeverageRatioMember" abstract="true" name="BetweenOneandOneHalfandTwoandOneQuarterLeverageRatioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_NonfenestrationMember" abstract="true" name="NonfenestrationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nx_ConcentrationRiskNumberOfCustomers" abstract="false" name="ConcentrationRiskNumberOfCustomers" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nx_A2016PerformanceSharesVested" abstract="false" name="A2016PerformanceSharesVested" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nx_InternationalEquityMember" abstract="true" name="InternationalEquityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_DebtInstrumentLimitationonAnnualDividend" abstract="false" name="DebtInstrumentLimitationonAnnualDividend" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_PatentsAndOtherTechnologyMember" abstract="true" name="PatentsAndOtherTechnologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_Postretirementdefinedbenefitplanscurrentliabilities" abstract="false" name="Postretirementdefinedbenefitplanscurrentliabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearFive" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_NAEngineeredComponentsMember" abstract="true" name="NAEngineeredComponentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_LineofCreditFacilityMaximumBorrowingCapacityCommittedAmount" abstract="false" name="LineofCreditFacilityMaximumBorrowingCapacityCommittedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_InterestRateScenarioAxis" abstract="true" name="InterestRateScenarioAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="nx_NonCurrentMaturitiesOfLongTermDebtMember" abstract="true" name="NonCurrentMaturitiesOfLongTermDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_SwingLineMember" abstract="true" name="SwingLineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidAfterYearFive" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligationsToBePaidAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_A2015PerformanceSharesVested" abstract="false" name="A2015PerformanceSharesVested" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nx_TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarningsIncomeTaxExpenseBenefit" abstract="false" name="TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarningsIncomeTaxExpenseBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_ConcentractionCreditRiskandAllowancePolicyPolicyTextBlock" abstract="false" name="ConcentractionCreditRiskandAllowancePolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="nx_TaxCutsandJobsActof2017GILTIandFDII" abstract="false" name="TaxCutsandJobsActof2017GILTIandFDII" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_PensionServiceBenefit" abstract="false" name="PensionServiceBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_FinanceLeaseLiabilityAndOtherFinancingObligations" abstract="false" name="FinanceLeaseLiabilityAndOtherFinancingObligations" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_LongTermDebtAndCapitalLeaseObligationsGross" abstract="false" name="LongTermDebtAndCapitalLeaseObligationsGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesGreaterThanOrEqualTo50PercentMember" abstract="true" name="ShareBasedCompensationAwardPerformanceCriteriaAbsoluteTotalShareholderReturnMilestonesGreaterThanOrEqualTo50PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_EUEngineeredComponentsUnitTwoMember" abstract="true" name="EUEngineeredComponentsUnitTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_PaymentForSettlementOfShareBasedCompensation" abstract="false" name="PaymentForSettlementOfShareBasedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_PerformanceSharesExpectedtoVest" abstract="false" name="PerformanceSharesExpectedtoVest" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="nx_ShareBasedCompensationAwardPerformanceCriteriaDomain" abstract="true" name="ShareBasedCompensationAwardPerformanceCriteriaDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_NAEngineeredComponentsUnitOneMemberMember" abstract="true" name="NAEngineeredComponentsUnitOneMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_DescriptionOfNewAccountingPronouncementsRecentlyAdoptedAndNotYetAdoptedTextBlock" abstract="false" name="DescriptionOfNewAccountingPronouncementsRecentlyAdoptedAndNotYetAdoptedTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="nx_LeasesLiability" abstract="false" name="LeasesLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_EffectiveIncomeTaxRateReconciliationVestingOrExerciseOfShareBasedPaymentArrangementAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationVestingOrExerciseOfShareBasedPaymentArrangementAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_BetweenTwoandOneQuarterandThreeLeverageRatioMember" abstract="true" name="BetweenTwoandOneQuarterandThreeLeverageRatioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_EffectiveIncomeTaxRateReconciliationImpactofTaxReform" abstract="false" name="EffectiveIncomeTaxRateReconciliationImpactofTaxReform" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_HighyieldbondMember" abstract="true" name="HighyieldbondMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_Contributionstargetfundedstatus" abstract="false" name="Contributionstargetfundedstatus" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_ConcentrationRiskNumberofMajorCustomersLostWhoCouldAdverselyAffectBusiness" abstract="false" name="ConcentrationRiskNumberofMajorCustomersLostWhoCouldAdverselyAffectBusiness" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="nx_OneCustomerMember" abstract="true" name="OneCustomerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_EffectiveIncomeTaxRateReconciliationImpactofGILTIandFDII" abstract="false" name="EffectiveIncomeTaxRateReconciliationImpactofGILTIandFDII" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_DebtInstrumentRequiredLeverageRatio" abstract="false" name="DebtInstrumentRequiredLeverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="nx_LesseeLeaseTermOfContract" abstract="false" name="LesseeLeaseTermOfContract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="nx_Deficiencyofstockoptionproceedsrecordedtoretainedearnings" abstract="false" name="Deficiencyofstockoptionproceedsrecordedtoretainedearnings" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nx_CorporateSGAAllocationTableTextBlock" abstract="false" name="CorporateSGAAllocationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="nx_PerformanceSharesSettledinCash" abstract="false" name="PerformanceSharesSettledinCash" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_CustomerRelationshipsAndPatentsAndOtherTechnologyMember" abstract="true" name="CustomerRelationshipsAndPatentsAndOtherTechnologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nx_DebtInstrumentLeverageRatioThresholdforLimitationstoTakeEffect" abstract="false" name="DebtInstrumentLeverageRatioThresholdforLimitationstoTakeEffect" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="nx_PerformanceSharesSettledinStock" abstract="false" name="PerformanceSharesSettledinStock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nx_NumberOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValue" abstract="false" name="NumberOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAtFairValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
</xs:schema>
