What additional items might I need for installation?

Depending on your garage setup, you may need: (2) 2X4 pieces of wood for fastening brackets, a support bracket for finished ceilings, extension brackets or wood blocks for sensor installation, fastening hardware for alternate floor mounting, an outside quick release if you have no access door, door reinforcement for lightweight doors, or a rail extension kit if your door is more than 7 feet high (Page 4).