Drywall originated as a quicker and easier alternative to traditional lath and plaster wall construction. Also known as plasterboard, wallboard or gypsum board, drywall is a panel composed of gypsum plaster pressed between two thick sheets of paper. It’s used to finish interior walls and ceilings. There are a number of different types of drywall available for use; some have special core additives for increased fire resistance, while others provide a better sound barrier. Hamilton Building Supply can advise you on the best options for your particular project. In addition to the large selection of drywall products, we also carry drywall beads, trims, and accessories for a professionally finished look.