This document summarizes the specifications of a Mega Cube Curtainside Tri-Axle trailer manufactured by Don Bur. It is 13.7 meters long, 2.55 meters wide, and 4.635 meters tall with a kingpin position of 1.6 meters and axle spreads of 1.2 meters. It has a maximum gross weight of 32 tons, maximum weight on the tractor of 11 tons, and maximum bogie and axle loads of 21 tons. It has a tri-axle air suspension and independent braking systems with a roll stability system. The floor is made of 22mm phenolic-faced plywood and has 3 fixed central roof supports. XL rated curtains are fitted with stainless steel locks