<?xml version="1.0" encoding="US-ASCII"?>
<!-- This schema was created by staff of the U.S. Securities and Exchange Commission. -->
<!-- Data and content created by government employees within the scope of their employment -->
<!-- are not subject to domestic copyright protection. 17 U.S.C. 105. -->
<xs:schema
xmlns:fnd-uit="http://xbrl.sec.gov/fnd-uit/2025"
xmlns:link="http://www.xbrl.org/2003/linkbase"
xmlns:ref="http://www.xbrl.org/2006/ref"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
targetNamespace="http://xbrl.sec.gov/fnd-uit/2025"
elementFormDefault="qualified"
xsi:schemaLocation="http://www.xbrl.org/2006/ref http://www.xbrl.org/2006/ref-2006-02-27.xsd">
<xs:import namespace="http://xbrl.sec.gov/fnd-lab/2025" schemaLocation="fnd-2025_lab.xsd"/>
<xs:annotation>
<xs:appinfo>
<link:linkbase id="lnk">
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
<link:roleRef roleURI="http://xbrl.sec.gov/uit/role/Item11.2" xlink:type="simple" xlink:href="fnd-2025.xsd#Item11.2"/>
<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/uit/role/Item11.2">
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1DsclsrLineItems" xlink:label="NmRule35d1DsclsrLineItems"/>
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1TermDfnTextBlock" xlink:label="NmRule35d1TermDfnTextBlock"/>
<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NmRule35d1DsclsrLineItems" xlink:to="NmRule35d1TermDfnTextBlock" order="2.0" priority="10"/>
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1TermSlctnCritTextBlock" xlink:label="NmRule35d1TermSlctnCritTextBlock"/>
<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NmRule35d1DsclsrLineItems" xlink:to="NmRule35d1TermSlctnCritTextBlock" order="3.0" priority="10"/>
</link:definitionLink>
<link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/uit/role/Item11.2">
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1DsclsrLineItems" xlink:label="NmRule35d1DsclsrLineItems"/>
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1TermDfnTextBlock" xlink:label="NmRule35d1TermDfnTextBlock"/>
<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NmRule35d1DsclsrLineItems" xlink:to="NmRule35d1TermDfnTextBlock" order="1.0" priority="10"/>
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1TermSlctnCritTextBlock" xlink:label="NmRule35d1TermSlctnCritTextBlock"/>
<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NmRule35d1DsclsrLineItems" xlink:to="NmRule35d1TermSlctnCritTextBlock" order="2.0" priority="10"/>
</link:presentationLink>
<link:referenceLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1DsclsrLineItems" xlink:label="NmRule35d1DsclsrLineItems"/>
<link:reference xlink:type="resource" xlink:label="reference_NmRule35d1DsclsrLineItems_2" xlink:role="http://www.xbrl.org/2003/role/presentationRef">
<ref:Publisher>SEC</ref:Publisher>
<ref:Name>Form N-8B-2</ref:Name>
<ref:Section>Item</ref:Section>
<ref:Subsection>11</ref:Subsection>
<ref:Paragraph>Instruction</ref:Paragraph>
<ref:Subparagraph>2</ref:Subparagraph>
</link:reference>
<link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NmRule35d1DsclsrLineItems" xlink:to="reference_NmRule35d1DsclsrLineItems_2" priority="10"/>
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1TermDfnTextBlock" xlink:label="NmRule35d1TermDfnTextBlock"/>
<link:reference xlink:type="resource" xlink:label="reference_NmRule35d1TermDfnTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/presentationRef">
<ref:Publisher>SEC</ref:Publisher>
<ref:Name>Form N-8B-2</ref:Name>
<ref:Section>Item</ref:Section>
<ref:Subsection>11</ref:Subsection>
<ref:Paragraph>Instruction</ref:Paragraph>
<ref:Subparagraph>2</ref:Subparagraph>
</link:reference>
<link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NmRule35d1TermDfnTextBlock" xlink:to="reference_NmRule35d1TermDfnTextBlock_2" priority="10"/>
<link:loc xlink:type="locator" xlink:href="fnd-2025.xsd#fnd_NmRule35d1TermSlctnCritTextBlock" xlink:label="NmRule35d1TermSlctnCritTextBlock"/>
<link:reference xlink:type="resource" xlink:label="reference_NmRule35d1TermSlctnCritTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/presentationRef">
<ref:Publisher>SEC</ref:Publisher>
<ref:Name>Form N-8B-2</ref:Name>
<ref:Section>Item</ref:Section>
<ref:Subsection>11</ref:Subsection>
<ref:Paragraph>Instruction</ref:Paragraph>
<ref:Subparagraph>2</ref:Subparagraph>
</link:reference>
<link:referenceArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-reference" xlink:from="NmRule35d1TermSlctnCritTextBlock" xlink:to="reference_NmRule35d1TermSlctnCritTextBlock_2" priority="10"/>
</link:referenceLink>
</link:linkbase>
</xs:appinfo>
</xs:annotation>
</xs:schema>
