Designed for openings up to 42 metres wide and 9 metres high, our 400-FTH is a top-hung, steel sliding folding door widely chosen by the Emergency Services and Military. Engineered for durability, they provide easy operation and optimal space efficiency for mission-critical environments. Where insulation matters most. Our fully insulated doors play a crucial role by helping regulate temperatures within the hangar, minimizing heat loss in cold environments and maintaining a cooler atmosphere in warm climates. With the option to include double glazed windows in each door panel, it allows for natural light to illuminate the hangar and enhances the working environment.