Such boards are also referred to as sheetrock, plasterboards, drywall, wallboards and gyprock. The Plaster City location makes Sheetrock brand gypsum panels. In Manhattan, Gira found employment as a construction worker, doing demolition, sheetrock installation, and plastering. Zanker Recycling began recycling gypsum in the form of sheetrock in 1999. Eventually, they were lined with sheetrock, and the floors filled with masonite. It was also the first federally approved high-rise to use sheetrock for internal walls. At the time, Gaskin had been working for his father hanging sheetrock. Originally called Adamant Panel Board, the product became known as Sheetrock in 1917.