Drywall is a piece consisting of gypsum board, drywall, and sand used for wall and ceiling construction. Drywall is used in remodels or new construction as an insulation layer , and a an insulation layer between the studs, roof, or flooring. Drywall is easy to install and is relatively inexpensive, which makes it a popular choice for homeowners and remodelers. If you need additional resources about home decoration, check out this site.