Trellidors are custom made to protect individual doors, windows, shop fronts and passages. Made from galvanized steel and powder coated, that can suit any home, office or shop decor. Aptly called "THE CRIME BARRIER" Trellidors are made from galvanized steel and powder coated and are unobtrusive when not in use, formidable in use, and even when in the closed position they allow fresh air and virtual total visibility whilst providing maximum protection. Trellidors locking system provides a two-point dead bolt system from a single key point. Trellidors can be installed externally or internally depending on the shopfront layout. When not in