Abstract: A forklift truck has a chassis structure with at least two sections 11, 12 hinged together for pivotting between an open working configuration and a closed stowage configuration.

Abstract: A profiled sheet material is formed into side panels and floor or deck panels for use of example in the manufacture of high-sided lorries, trailers and containers. The profiled sheet material (10) has a plurality of parallel deformations (11) which in cross section are substantially triangular with the base (12) of each deformation spaced from the body of the sheet. The apex of each deformation is formed by closely abutting curved faces of the sheet material (1) where the body of the sheet material is bent into the deformation. Floor or deck plates incorporates strips of timber (50) whose longitudinal faces are tapered. These are located between adjacent pairs of deformations (11) with a tapered faces abutting the respective sides (42,43) of the deformations. A series of indents (41) are also formed along the length of the web (12) of the U-formation. The U-formation is then deformed by pressing the tops of both limbs (42,43) inwardly towards each other to form a triangular formation.