U.S. Door & Building Components introduced its Model 502 self-storage roll-up door, specifically designed for maintenance-free operation and an installation time of less than five minutes. This line of doors has a wind-load rating of up to 120 mph without the need to incorporate additional wind locks. For applications requiring a wind-load rating of 140 mph, the doors use ultra-high-molecular nylon wind locks for ease of use and quiet operation. Additional features of the Model 502 include a 20-year warranty against chalking and fading on the paint finish and a 9.5-inch, fully enclosed barrel assembly. Doors are available in a variety of sizes and 22 colors. Info: www.usdoor.com