Air Capital Conversions LC Looking for a quality Cargo trailer? This is the one. 7x12 Galvaneal Steel w/ Rear Ramp door, side door, tandem 3,500# axles w/ electric brakes. 6'6 tall. CM Trailers are known for pulling great. Come and see the many cargo trailers we have to offer. Other sizes available. This trailer weighs 2445#.