Drywall is a construction material used to create walls and ceilings. It's also used to make many design features and architectural specialties. It's easy to install and very durable.
Drywall consists of a single layer of compressed gypsum sandwiched between two sheets of heavy paper. Gypsum is a mineral found in massive beds that look like white sand. Once it has been mined, raw gypsum is then mixed with several additives, including starch, paper pulp and a thickening agent, then mixed with water to create a thick paste. Afterward, the gypsum paste is spread onto Manila paper and another sheet of Manila paper is then laid on top. Then, the entirety passes through industrial ovens and dries the material out to prepare it for cutting. Typically, drywall comes in 4’x8′, 4’x10′, and 4’x12′ sheets.
The name “drywall” refers to the fact that a drywall panel is installed without the use of water. Before drywall became widely used, building interiors were made of plaster; walls and ceilings used to be made by placing layers of wet plaster over thousands of wooden strips.