These doors are mostly used in doorways and loading docks for the passage of larger vehicles, forklifts and the transfer of equipment, pallets, and product into trucks. The lifting apparatus is attached to an inside wall next to the door opening. The door is led by guides to roll the door up into a coil.

These doors are mostly used in doorways and loading docks for the passage of larger vehicles, forklifts and the transfer of equipment, pallets, and product into trucks. The lifting apparatus is attached to an inside wall next to the door opening. The door is led by guides to roll the door up into a coil.