The Super Heavy-Duty Z Truck is a strong 500 lb. capacity workhorse to use in your stockroom. A great rack for sales and specials the Z Truck is 66" high x 63" long x 22" wide with 4" locking industrial casters, brushed chrome uprights and adjustable hangrail bar. No need to worry about storage space because Z Trucks nest snugly into one another to maximize space.