<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">rough sills</topic></authority><related type="broader"><topic>balloon and platform frame components</topic></related><variant type="other"><topic>rough sill</topic></variant><variant type="other"><topic>sills, rough</topic></variant> <note xml:lang="en"><![CDATA[ Horizontal members laid across the bottom of an unfinished opening to act as a base during construction of window frames or door frames. For the horizontal members that rest on the foundation at the bottom of a wood structure, use "sill plates." ]]></note></mads>