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2. Garage door - Wikipedia

   en.wikipedia.org/wiki/Garage_door

   Sectional garage door Up-and-over garage door Garage Door Hardware. A garage door is a large door to allow egress for a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. The operating mechanism is usually spring-loaded or ...

3. Roller shutter - Wikipedia

   en.wikipedia.org/wiki/Roller_shutter

   Roll shutters on windows. Security roller shutters in a dead mall. A roller shutter, security shutter, coiling door, roller door or sectional overhead door is a specialized type of door or window shutter consisting of multiple horizontal slats, bars, or web systems interconnected through hinges. The mechanism involves lifting the door to open ...

4. Garage door opener - Wikipedia

   en.wikipedia.org/wiki/Garage_door_opener

   The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.

5. Door lock - Wikipedia

   en.wikipedia.org/wiki/Door_Lock

   a deadbolt lock; a door chain; a locking door handle; an electromagnetic lock, which holds a door shut when electricity is supplied to it; a keycard lock, commonly used on hotel doors; a mortise lock, a lock installed in a hollowed-out pocket within a door; a rim lock, a lock fixed to the exterior of the door

6. High-speed door - Wikipedia

   en.wikipedia.org/wiki/High-speed_door

   High Speed Doors are an evolution of the traditional roller shutter door (hence the alternative name they are often given of Rapid Roll Doors). They are primarily designed to give higher operating speeds, improved sealing and sustain a higher number of opening & closing cycles than traditional roller shutters, without compromising reliability ...

7. Door chain - Wikipedia

   en.wikipedia.org/wiki/Door_chain

   Door chain. A door chain, security chain, or security door chain or chain door interviewer [1] consists of a small chain attached to the door frame, which attaches to a track on the door for security purposes. It is a type of lock that is often used along with other types of locks to secure a door. [2] They are commonly used on hotel and motel ...