An overhead door is one designed to open from a mechanism at the top, allowing the door to be pulled up and into a horizontal position. Overhead doors are commonly used as garage doors.
Found on
http://www.designbuild-network.com/glossary/overhead-door.html
This is a door made of a number of wide steel panels joined together horizontally. They are fitted into vertical guides at either end which allow them to slide up and down. The panels enable the door to bend in a curved track above the opening. The door can be pulled up this track, or allowed to slide down it, using hand chains, or a motor, or both...
Found on
https://www.reidsteel.com/steel-buildings/glossary/
No exact match found.
