The Ellickson type roller shutter door is designed to provide safe and secure controlled access for industrial & commercial buildings. Our roller shutter door is constructed of galvanised steel, 75mm interlocking laths 20 SWG (.9mm). Doors can be either manually or electrically operated. Door operators are individually calibrated depending on door size. The top end door assembly will be enclosed with a steel canopy 16 SWG (1.6mm) and secured to steel plates.