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2. Garage door - Wikipedia

   en.wikipedia.org/wiki/Garage_door

   Garage doors can be made of many materials, but steel, aluminum, wood, copper, glass, and vinyl (polyethylene) are the most popular materials. Some manufacturers incorporate foamed-in-place polyurethane insulation within the monolithic panel and sectional garage doors. The side sliding sectional door [5] A lot of space under the garage ceiling.

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. Hörmann - Wikipedia

   en.wikipedia.org/wiki/Hörmann

   Hörmann is a German manufacturer of doors, garages, door frames, and gates for commercial and private real estate. [1] Operating globally, the family-owned business is Germany's largest door producer and the fourth biggest door manufacturer in the world.

6. Swing-door operator - Wikipedia

   en.wikipedia.org/wiki/Swing-door_operator

   Approach side, door mounted sensor—mounted on the approach side of the door itself, used as the door is closing to detect a user in the way of the closing door. Some safety sensor also safeguard the hinge area to protect hands and fingers during the closing process. In that case, the operator either stops the door or reopens it. Swing side ...

7. Revolving door - Wikipedia

   en.wikipedia.org/wiki/Revolving_door

   Diagram of a revolving door, viewed from above. Around the central shaft of the revolving door, there are usually three or four panels called wings or leaves.Large diameter revolving doors can accommodate pushchairs and wheeled luggage racks - such large capacity doors are sometimes H-shaped to split the circle into only two (hence larger) parts.