A configurable, easily assembled and disassembled cargo carrier having at least one floor member with at least one downward facing flanged edge, at least two side members where each side member has an outward facing flanged top edge and an inward facing flanged bottom edge, at least one corner brace to securedly connect one of the side members to another of the side members, thereby forming a corner of the cargo carrier, fasteners for securing the floor member to the side members and the corner braces to the side members, and a chassis attachment system for securing assembled cargo carrier to a chassis.