The stacked garage door is a type of flexible curtain door, commonly known as a flexible door. The inner and outer layers of polyester fiber door fabric are connected by wind resistant crossbeams, and can be vertically raised and lowered. According to the needs of the entrance, it can be equipped with movable guide rails, suitable for aircraft hangars, heavy-duty structural factories, large shipyards, etc. where the height of the entrance is not at the same elevation. According to the structural design, it can be installed inside or outside the opening.
Through the combination system of multiple door leaves in the activity track, it can theoretically be applied to infinite width door openings, and almost no side space is required. Multi door fans have been fully proven in aviation and marine equipment, designed to withstand high wind pressure loads with minimal maintenance.