The required clearance from the face of the header to any obstruction to the rear of the horizontal track.

Relating to garages, the backroom is NOT the room where you go to play cards with the boys. It actually refers to the amount of space required to install a garage door, and is measured from the door to the back of the horizontal track.

A storage area for excess products, kept on hand to restock the sales floor as needed.

Amount of clear unobstructed space extending back from the face of the wall.

Term used for the service bays where cars are repaired.

the meeting place of a group of leaders who make their decisions via private negotiations.