The dock leveller length is determined by the maximum permissible working gradients for the internal transport vehicle and the goods to be loaded/unloaded.

The dock leveller width depends on the vehicle clear width and the goods to be loaded/ unloaded.

When electrically powered or hand operated pallet trucks are used or when loading and unloading the last load onto a vehicle below the warehouse level, then dock levellers with a width of 2250 mm are recommended.

The required dock leveller load capacity is based on the combined weight of the internal MHE equipment, the operator weight and the heaviest load, but should always be in accordance with EN 1398.