A wedge-type door stop -LRB- door wedge -RRB- functions largely because of the friction generated between the bottom of the door and the wedge , and the wedge and the floor -LRB- or other surface -RRB- .

A door stop -LRB- door wedge -RRB- is a wedge , and its main function is to generate friction between the bottom of the door and the ground .
