<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31439540</termId><termName>heading joints</termName><termType>PT</termType><termNote><![CDATA[ Joints formed by joining the ends of boards together, end-to-end. In construction, given that heading joints must be supported by joists or bearers, the joints often appear in a straight line. ]]></termNote><termCreatedDate>2026-03-30 20:58:29</termCreatedDate><relation><relationType>UF</relationType><termId>31439541</termId><termName>heading joint</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439542</termId><termName>joints, heading</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31414178</termId><termName>simple joints</termName><termType>PT</termType></relation></term>  </Zthes>