Stacking alternating layers of gypsum plaster and paper ... Plasterboard described its contents, wallboard described where it was hung, and drywall differentiated it from wet plaster walls.

Generic name Several companies Slightly less expensive May not use recaptured gypsum Made internationally Varying quality ...

Drywall, also known as plasterboard or wallboard, consists of two paperboards that sandwich gypsum, a powdery white or gray sulfate mineral. Gypsum is noncombustible, and compared to other wall ...

which was crushed and pulverized before being marketed as gypsum wallboard, cement, plaster, drywall and paste paint and other fire-proofing materials. Before it closed in July 1976 because of ...

Call it what you will — drywall, gypsum board, wallboard, plasterboard, gyp board, rock — we all (do-it-your-selfers, remodelers and builders, and their clients) waste a lot of it. For those who’ve ...