How is Drywall Made?
What drywall does now, cover interior structures like beams and joists and provide a flat surface for papering or painting, plaster used to do. Plaster, however, took many days to apply and required long drying times. In 1916, The United States Gypsum Company (USGC) invented Sheetrock, plaster dried into the form of boards, as an alternative to labor-intensive plastering. The need to quickly build many homes after World War II created a demand for Sheetrock, also called plasterboard or drywall. Drywall made construction much faster and more efficient.
