Continuous corrugated Windlock Sheet Door is produced with the highest quality and durability in the industry. The 203 Series is available in sizes up to 20' x 18' in a variety of colors. Excellent price and efficient installation makes the 203 series the perfect choice for loading docks, warehouse buildings, distribution centers, freight terminals, or any commercial applications with high windload requirements. The 203 Series is windload certified and tested to approved standards as specified in the Florida and Texas Building Codes. Impact Doors are also available.