This ADA-compliant folding tub seat has a 1/2-inch thick white poly (HDPE) deck that is 15 inches wide. The tubular components are fabricated from brushed satin finish Type 304 series stainless steel. The overall dimension of the seat is 32.1875 inches by 18 inches. The seat folds up using stainless steel pivot tubes and 7 gauge hinge brackets and is held in the upright position with a stainless steel hook. All necessary mounting hardware (except fasteners) are included.