14- gauge stainless steel frame and "L" supports increase stability to prevent accidents and spills 11- gauge all welded stainless steel base ensures superior strength and balance 5" (127) corner stem No-Mark polyurethane casters offer flexibility to move rack from sink to storage area Removable tray rack slants in the center and has a perforated bottom for quick and efficient drainage Shelves also include perforated drain holes for fast draining Holds tray sizes 14" x 18" (356 x 457), 15" x 20" (375 x 508) and 16" x 20" (406 x 508) Maximum tray thickness is 2- 1/2" (64). Shelf clearance is 17- 3/8" (441)