One brand new Pylex 13901 steel step riser. Building your staircase was never so simple and fast. Designed in one piece, this stair stringer does not need to be cut. Simply install the step. No maintenance required. The steel tube provides stability and durability. It adds a finishing touch to your house and highlights your staircase. Coated with a baked-on powder coat and a protective PVC tape glued to the step offer excellent rust resistance. Can be used with steel, wooden, fiberglass, etc. steps and guard rails. Ideal height for the deck : 15″. Use 2 (2″ x 6″) or 1 (2″ x 12″).