Background information
The hinged doors, as widely used until the 1950s, had the disadvantage that they required floor space to open. Furthermore, properly hanging a hinged door is a specialized job that needs to be adjusted occasionally if the wood in the door moves, for example, due to weather influences. Furthermore, a large wooden door could become heavy and still be susceptible to wood rot. The roller door alleviates many of the above-mentioned issues. Using aluminum—and later even insulated sandwich—elements, a lightweight door was created that is resistant to wood rot and, above all, can be opened and closed, even if goods are stored directly around it. Roller doors have therefore become increasingly popular since the 1960s and are now indispensable in many commercial buildings. Although those doors are often custom-made, standardized dimensions are also available, for example, for loading and unloading areas.
Notes:
"2x3" in the title indicates the window arrangement in the doors.
The height measurement below indicates the thickness of the doors in this case. The other measurements indicate the surface area.
The doors can be created in semi-relief or full-relief. More information can be found in the manual.