A certain part of the store will be erected and used as a warehouse. Generally, you use space by constructing temporary walls and ordinary doors.
However, the space utilization is not large because only the passage is possible with the movable walls and small doors.
In order to compensate for such a problem, a folding door was installed to increase the space utilization with more than 90% openness.

When moving a large object or passing through, you can freely open and close it because the area can be adjusted in detail through the frame.