Smooth-Star® hinged patio door systems feature a tough fiberglass surface that won’t ding or dent and will never rust or corrode like steel. The full system features a High-Heat Composite™ frame, a HP adjustable sill and Low-E insulated glass. They are available in a choice of four factory - finished exterior colors, White, Stone, Almond and Bronze and come in a variety of widths and heights. All backed by a 20-year limited warranty. Options for the Smooth-Star Patio Door System include a Multi-Point Locking System, Adjustable hinges and a Deluxe Wide Profile Screen made of heavy duty aluminum that is color-matched to the exterior of your door. Also available are internal contoured grids.