Gordon Cellar Door 48 in. x 0 in. Primed Steel RD3 Cellar Door Extension Header

The Gordon Cellar Door 12 in. Extension for RD-3 Doors is designed to extend the RD-3 cellar door to cover longer openings. This extension piece is primed red and can be painted. It is made of heavy-gauge steel. The 12 in. extension extends the overall length of the unit to 84 in. - 86 in.