Patent ID: 7066529

Claim:
A cargo container comprising: a floor; a front wall; and spaced side walls, the floor, front wall and side walls cooperatively bound a cargo storage space, the front and spaced side walls each having an exposed inside surface bounding the cargo storage space and an exposed outside surface with an area, the front and spaced side walls cooperatively defining a peripheral wall structure having a top and bottom, at least part of the peripheral wall structure comprising at least one corrugated sheet having a plurality of alternating ridges and grooves, the ridges and grooves having lengths extending in a direction between the top and bottom of the peripheral wall structure, the at least part of the peripheral wall structure comprising at least one external panel that is connected to the at least one corrugated sheet so as to define a substantial area of the exposed outside surface, wherein the alternating ridges and grooves comprise alternating internal ridges and grooves and alternating external ridges and grooves, and the at least one external panel bridges a plurality of external ridges and is connected to a plurality of the external ridges, wherein the at least one external panel extends over a majority of the area of at least one of the spaced side walls, the at least one external panel having a substantially flat shape defining the exposed outside surface over the majority of the area of the at least one of the spaced side walls.