Commercial vehicle

The commercial vehicle comprises a chassis (2) of a commercial vehicle supported platform. A loading area is limited on two opposite sides by boundary strips (10,11), where a locking device (7) secures a load. The locking unit comprises columns (4a,4b) and separating elements (27,28). The columns are releasably coupled to the chassis of the commercial vehicle supported platform. Rail elements (13,14) are formed on a free upper side of the boundary strip. A connecting element cooperates with rail element for holding coupling units (15,16) at the boundary strip.