Therma-Tru Fiber-Classic® Sliding Patio Door System captures the essence of natural oak graining with the lasting performance of fiberglass. It features a factory-finish exterior in your choice of White, Almond, Stone or Bronze and the interior can be stained or painted to match your décor. A fully pultruded fiberglass frame and sill add superior strength and durability. Other features include flush-glazed tempered Low-E insulated glass, stainless steel hardware, a multi-point locking system, and a spring-loaded footbolt. It also carries a lifetime limited warranty.