C404 is a three light arch top glass panel Craftsman design with two vertical panels. The upper glass area is high enough to maintain privacy while still allowing natural light into your home. Exterior units use insulated glass, upgradeable to low e and argon. Glue chip, beveled, acid etched glass, as well as other decorative options are available. Interior doors use non insulated tempered glass. Panels can be made flat with square edge stile and rails. Available as s single, double, pre-hung or slab door only.