examples of doors 
Doors: composed of a movable part, the wing, and a frame; their function is to close up a bay.
Door comprised of strips of flexible plastic; it allows easy movement between two rooms.
Each of the flexible plastic bands that overlap to close the bay and move apart to allow a person through.
sectional garage door
Door whose wing is composed of articulated horizontal panels that slide along rails into the roof of the garage.
up and over garage door
Door made up of a wing that slides toward the ceiling of the garage.
Fireproof door that delays the spread of flames and smoke during a fire.