French doors add a touch of elegance to almost any home design. In fact, they can be works of art in and of themselves. Even modest and moderately priced homes can see a significant increase in value simply by being outfitted with artfully crafted composite doors.French doors are characterized by the incorporation of glass panels in a frame. Typical French door frames are made of some type of wood, though other materials can also be used. This is particularly true for commercial French doors, which may be made of aluminum or steel. For residential use though, the frames are most often made of wood. French doors may be made with a single solid panel of glass, or they may be constructed with multiple glass panels which are incorporated into the frame. In the case of exterior doors, the...