?A roller shutter door is a type of door that is most commonly used by commercial properties, such as businesses or shops. The door can be made from steel or aluminium. The door itself consists of a series of horizontal panels, known as slats or shutters that fit into one another. Since there are usually quite a large number of these slats of shutters that make up the door, the door itself is highly flexible. This allows the door to be rolled up into a cylinder, much like you would roll up a carpet. Rolled up, the door fits onto a cylindrical barrel. Using either a manual crank or remote control, clients are able to roll and unroll the door in order to open and close it.  
One of the main advantages that a roller shutter door provides over a traditional door is that it is a space-saving solution. This is especially the case when roller shutter doors are used as garage doors. People who have a short driveway are able to pull their car right to the top of the driveway and then drive into their garage. Because the door rolls and unrolls, there is no need to allow space for the door to open or close.  
Another advantage is that the doors are highly customisable and come in a wide range of colours and finishes. Roller shutter doors are therefore stylish without taking away from its impeccable safety features. These doors are used by business around the world to secure their premises. These doors are therefore trusted to keep very valuable items safe. With such a reputation, it is easy to see why more and more people are choosing roller shutter doors for their homes.  
One of the main concerns regarding roller shutter doors is the fact that most of them operate with a remote control. Clients often worry about not being able to open the door in case of a power outage, for example. Rest assured, however – most automatic roller shutter doors also have a manual override. A crank is then used to open the door.