Roller shutter door is a type of door or window consisting of many horizontal strips (or sometimes bars or web systems) hinged together. The door is raised to be opened and lowered to be closed . As to the large doors, the action may be motorized. It provides protection against wind and rain. In shutter form, it is used in front of a window and protects the window from vandalism and burglary attempts.

Roller shutter door is with many applications, including doors for vans, garages, kitchens, schools, prisons and warehouses. At some places of the world, roller shutters door are subsidized by local governments due to the inherent security benefits. In areas that are frequently exposed to inclement weather, roller shutters are used as a method of insulation and can protect windows against hail damage.