One of the common problems faced while operating a loading dock is that of the bridging up of the spaces between the warehouse floor or dock and a truck. This is because of the difference of height of different trucks. In order to overcome the problem various machines or tools are used in docks, like dock plates, dock boards, dock levelers.
Dock boards and Dock Plates are generally portable in nature. They are neither fixed to truck nor to the floor. On the other, dock levelers are permanently fixed to the each door of the dock.