Choose either three tub shelves or flat top shelf and middle, bottom tub shelves utility cart with 4" casters, two with locking brake. STC11124"W x 18"D x 38.5"H. 2 3/4" deep tubs. STC21124"W x 18"D x 36.5"H.- Tub Cart, Three Shelves (2.75" Deep each), Black, 32"W x 24"D x 37.25"H, with (4) 4" Heavy Duty Casters (2 with Locking Brakes), Maximum Weight Capacity 400lbs, Assembly Required