Hi-frame stockpicker trucks with step ladder have 3 shelves, these oversized units are perfect for large jobs. Ideal for oversized cartons, boxes, parts and supplies. A spring loaded ladder for sure, safe climbing and loading. Steps have non-skid footing with self-cleaning surface. Standard 4-inches diameter by 2-inches width mold-on-rubber casters, 2 rigid, 2 swivel. Built of durable steel construction. Steel units are powder coated blue. Shelf clearance 27 inches. 63-inches top shelf height. 500 lbs capacity per shelf.