Commercial Vehicle Folding Rack. Instead of piling your heavy tires on top of each other, place them side by side for easier and faster moving. You can load between 8 -10, and stack 4 racks high or 20 high when folded. Fit perfectly in a semi trailer for quick shipping. Made of very strong steel, its construction gives it superior durability. Racks are stackable when open or folded. Specs: overall size 96"L x 44"W x 52"H; tire quantity 8 to 10; max size 44" O.D.; capacity 2500 lbs.; stackable open 4 max.; stackable folded 20 max.