Original metal trade vintage catalog for UNITED STATES GYPSUM CORPORATION. USG Light Steel Framing systems, SJ stud-joists, CS channel studs, light steel runners, steel joists. Manufacturers of lightweight, load-bearing framing for light commercial, single and multi-family residential buildings. Physical and sectional properties, maximum allowable clear spans, allowable loads, illustrated details, specs and more. Unbound from a large 1982 architectural catalog, this unique old twenty page technical brochure would display beautifully matted and framed. Nice cover graphics. A fantastic addition to your retro metal library. Pages are detached and contain a small amount of residual glue on edge. System Folder SA-510.