With the help of invisidoor, it is possible to integrate doors flush-mount into walls without any visible fixtures. For hinged doors, this is based on an aluminium frame that can be plastered. A universal profile for inward and outward opening doors, suitable for 40 and 44 mm thick door leaves, can be used to create both the lock and hinge side as well as the upper profile of the door frame. This allows users themselves to cut and mitre all the parts for interior doors measuring up to 4 m in height and 1.25 m in width to the required size.