<?xml version="1.0" encoding="UTF-8" standalone="no"?><?Xpress productLine="ncc-clause" ?><clause id="_6a2df6b3-3e83-4485-9dcd-521f8f635f9b" outputclass="ncc-clause"><sptc>S2C12</sptc><title id="_4f084fcb-b3c5-4994-8f2a-894309355cf3">Equivalent thickness</title><archive-num>2019: Sch. 5 (Annex): 3.3</archive-num><subclause id="_30062a4d-12c3-4b7c-b726-1a2e96cc75bd" outputclass="subclause"><title id="_65f865d1-2c3d-4940-8bef-1773cac3fb03">SubClause</title><num>1</num><p>The equivalent thickness of a masonry unit is calculated by dividing the net volume by the area of one vertical face.</p></subclause></clause>