Steel door panels consist of 24 or 22 gauge steel on both the inner and outer faces. The steel is crimped and glued into an a finger jointed pine perimeter frame. A solid pine lock block supports the steel in the lock area. The rigid polyurethane core is formed by injecting polyurethane foam into the cavity bewteen the steel skins. The steel skins are hot dipped galvanized and then primed.
Doors are available flush or embossed to simulate a panel door.
IM fibreglass door panels are similar to the steel door panels, except the skins can be stained to simulate the appearance of a oak panel door. The glass fibers are made by spinning melted silica sand. The thermoset polyester resin is based on a petroleum derived alkide. The frame is insulated with expanded polystyrene. Frame corners are assembled with polyester corner blocks and sealed with silicone caulk.