Durham's Three-Sided Trucks series comes in four models: without shelves, one adjustable shelf, two adjustable shelves or three adjustable shelves. Welded with 14-gauge steel, these heavy-duty construction trucks include a punched diamond pattern to mount shelves at any level desired. With 6" by 2" phenolic bolt-on casters -- two swivel, two rigid -- the trucks holds 2,000 lbs. for moving parts and equipment. A sturdy tubular push handle is provided for easy maneuverability.