the container can approach 53 feet thereby defining a substantially obstruction free volume of exceptionally high cubic volume capacity for a container a cargo container 110 is illustrated by fig6 and 7 the cargo container 110 is substantially similar to that illustrated by fig1 and previously described the cargo container 110 like the container 10 has a roof 112 sidewalls 114 and 116 a closed front end 118 and a rear end 120 the side walls 114 and 116 are supported by a provision of a number of aluminum stiffeners 161 and steel stiffeners 163 that are substantially uniformly spaced apart and distributed along the side walls of the container 110 typically positioned over abutted or overlapped joints of the adjacent plates forming the side walls steel stiffeners are utilized in those sections of the cargo container 110 expected to withstand the most tensional compressional or torque forces while lighter weight aluminum stiffeners can be used in other lighter duty sections of the container 110 a top plan view of a roof 112 partially broken away to better illustrate floor structure of the cargo container 110 is illustrated by fig7 a floor 126 of the cargo container 110 includes a plurality of floor strips 136 and a metal plate 130 providing a floor surface 128 to rest cargo upon the floor strips 136 and metal plate 130 are connected to low profile floor supports 134 the low profile floor supports 134 are substantially similar in form and function to the low profile floor supports 34 previously described transport of cargo containers having low profile floor supports in.