Drywall is a flat panel made of gypsum plaster sandwiched between two sheets of thick paper. It’s used to construct interior walls and ceilings.
Drywall is also known as Plasterboard, Wallboard, Gypsum board, Gyprock, and Sheetrock.
Drywall is more fire-resistant than plywood. It doesn’t burn as fast or catch on fire as easily.
Drywall was invented in 1916 by the U.S. Gypsum Company. Earlier forms of the product, plasterboard, were manufactured as early as 1888 in Kent, England.
Drywall is adhered to metal or wood studs using nails or screws. It’s harder around the beams and softer in the middle.