American Metal Door’s 3700 Series horizontal sliding, temperature rise-rated fire door systems are Underwriters Laboratories Listed and Factory Mutual Approved. The door systems are available with classification labels up to four hours. All LTH3700 Series horizontal sliding fire door systems are furnished complete in accordance with National Fire Protection Association (NFPA) 80 “Standard for Fire Doors and Windows”. The 3700 series is available as single slide or bi-parting.
The 3500 series by American Metal Door is perfect for a variety of industrial and commercial applications. The construction and design of the doors is meant to make installation easy due to the interlocking splice column which eliminates field welding. Appearances matter and the 3500 series will exceed your expectations. With no exposed fasteners and the wireless safety edges that eliminate draped wiring across the panel(s), the doors have a nice, clean look. They are available in both a single slide and bi-parting configuration also, giving you flexibility in design.