Just picked it up today. Its 16ft x 7ft inside diameter. The back gate either lets down as ramp gate or swings to the side for dumping.The floor is split at 9ft in the front and 7 in the back . The back 7 ft is a dump floor raised by a 1 ton winch located over the rear gate. clearence is 6ft from floor to winch. 4ft sides all around and 5 ft side gate in the front. What ya'll think?