A superstructure designed for three-axle vehicles in both rigid and interchangeable versions. The superstructure can be tipped to one, two or three sides. Side panels may be single-piece, transversely split with a central pillar, or split longitudinally. Side panels can be fixed, swing-type or drop-down, with load-assist springs, and operated either manually or hydraulically. The rear tailgate opens automatically via a lever mechanism. Preparations for a tarpaulin cover and support legs are available. Individual modifications are possible.