When we draw roll-up doors for truck docks, all we show is a 2" rectangle that is on the inside face of the wall and it would extend about 6" on each side. Much like Cab's, but on the inside of the wall and wider. CAB is also showing where the door ends up when in the upright position. With a roll-up door, it will end up in a 18" circle depending on the height of the door. Unless you need to show what is happening above the door, there is no benefit. You may or may not have a reflected ceiling plan for this area and that is where you would see where the door is stored if anyplace else. But, if we did show the storage area of the door, then a dashed rectangle would be adequate.
Pieter