Freight container

A freight container having a rectangular box shape including supporting posts, each having an outer surface, the outer surfaces of adjacent supporting posts being coplanar with one another and defining a plane therebetween, top and bottom rails joined to said supporting posts and positioned within the planes defined by said supporting posts, a pair of opposed side walls extending longitudinally between adjacent supporting posts and vertically between said top and bottom rails, each side wall having a plurality of longitudinally spaced apart elongate members extending in a vertical direction between said top and bottom rails, said elongate members projecting outwardly beyond said plane defined by said adjacent supporting posts, said elongate members of one wall being provided with spaces between the outwardly extending elongate members of the opposite wall such that the elongate members on one side wall of one container can be interengaged in the spaces of a side wall of an aligned adjoining container, said elongate members having opposing ends projecting outwards beyond respective said top and bottom rails, at least some of said opposing ends having wedge shaped capping means, said wedge shaped capping means extending substantially from said plane adjacent said top and bottom rails to an outer extremity of said elongate member.