Bilco Classic Series Primed Steel Basement Door Extension Size C In Stock Now

The Bilco Classic Series Primed Steel Basement Door Extender is designed to increase the door length of Bilco Classic Series basement doors. This basement door extender is for size C only. For longer lengths, these door extenders can be installed back-to-back. The Bilco door extensions are fitted with left and right panels and covers so that the flanges overlap the side panels and top flange of the Bilco door.