19 gauge type 304 stainless steel sides. Capacity of three glass racks. Two adjustable shelves. Back, backsplash and bottom are 20 gauge stainless steel. Leg channels and legs are 16 gauge stainless steel. Legs are 1 5/8″ diameter, with stainless steel adjustable bullet feet. Removable clips and pilasters included. 24″ wide models hold 20″ x 20″ racks. 18″ wide models hold 16″ x 16″ round racks. Full bottom shelf with 1 1/2″ drain. Drains are 1 1/2″ I.P.S. threaded with nut and washer.