Aluminum deck over a 2 x 4 Steel rectangular main frame and 2 x 12 boards. Just in from a 4 door Jaguar haul from Washington state. I have hauled a 66 Mustang and a Dodge dart on it and it handles very good on the interstate. Twin 3500 lb axles with 3 brand new tires and the 4th is 80-90% tread. has a spare, good safety chains and tongue jack. LED lights and new never used ramps. The dove tail deck makes it easier to load the lower vehicles. 2" hitch ball size. New plate with registration as an untitled Texas registration. Loads and tows good. Tool box is a plus to store equipment in.