examples of doors [4]
Doors: composed of a movable part, the wing, and a frame; their function is to close up a bay.
strip door 
Door comprised of strips of flexible plastic; it allows easy movement between two rooms.
strip 
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.
fire door 
Fireproof door that delays the spread of flames and smoke during a fire.