Steel Platform Trucks  Solid, smooth steel deck is all welded and features structural reinforcement underneath for extra strength. Includes one removable high-polished steel handle and rolls smoothly on two rigid and two swivel casters. Series SPT comes standard with a floor lock and a durable blue powder coat finish.  Specs: Deck Size 15", Uniform Capacity 3,600 lbs, Caster Size/Type 8" x 2" GFN, And Deck Size 24" x 48", 30" x 60", 36" x 72".