The steel property doors from Hörmann fulfilmultifunctional requirementsand can be used both indoors and outdoors. They provide the requiredfire and smoke protectionand are alsoburglar-resistantandsound-insulating designavailable. Our steel project doors are specially designed for use in data centres in oversizes designed for use in data centres. In areas where none of these functions are required, Hörmann steel property doors are also available as multi-purpose doors.