Sep 21, 2016 · Masterformat: 09 21 16.23 - Gypsum Board Shaft Wall Assemblies - CAD Drawings. DOWNLOAD SAMPLE CAD COLLECTION. Search for Drawings Browse 1000's of 2D CAD Drawings, .... Download USG Shaftwall Catalog. “CH” studs are fabricated in web depths of 2-1/2″, 4″, and 6″ each with a short-flange width of 1-3/8″ and long-flange width of 1-1/2″. All C-H studs manufactured by CEMCO are produced from hot-dipped galvanized steel in standard G40 coating. G60 is available upon special request.. "/>Shaft wall cad details