OUR HARDWOOD OPEN-DECK DOLLY IS SEASONED HARDWOOD POPLAR SMOOTHLY FINISHED WITH FLUSH TOP BOLTED CONSTRUCTION. THE WOOD IS STERILIZED AND BAKED AT HIGH TEMPERATURES AND THEN A COAT OF VARNISH IS APPLIED TO IT. INSIDE OPENING IS 16.75"" X 9"". FOUR SWIVEL HARD RUBBER CASTERS. MEASURES 24"" X 16"" WITH A 1000 LB. LOAD CAPACITY.