The outer frame aluminum "I" beam is 3.5" wide by 5.5" tall, of 0.118" thick.
The cross members are 2.75" wide by 4.5" tall and 0.118" thick.
Below:
The aluminum diamond plate seems to be about 1/8" thick. It has torsion flex axles with hydraulic disc brakes. 15" radial tires. The total length is 22' tip of tongue to tail. The Diamond Plate area is 14', the next segment in the front is 4'.
Below: The entire assembly is bolted together. Which makes it almost ideal for my use as a prototype - upon which I plan to design and build a low profile, aerodynamic custom car hauler for smaller Sports/GT's.