All welded construction (except handle & casters/wheels). Durable 12 gauge steel platform & underframe. 1-1/4" tubular handle (16" above deck). Casters/wheels - front: 3/4" solid rod axle with 16" full pneumatic wheels rear: 12" full pneumatic swivel casters, bolted on. 1-1/2" platform lips down (flush). Platform height - 20". Steel