This Dock Board stand up to the use and abuse that is common to warehousing and distribution. Their design is for the unusual parking application. Sometimes a truck cannot park flush against a dock and must stop short. This is called a "park out". The four pin locking solution assures that the board is locked in place for safe use. These boards are not recommended for railcar application. Standard capacities of 7T and 12T carry the ISO certification. Higher capacities and different sizes available.