The flush-to-the-wall doors in the Biliko, Next, Maxima and Planar versions are equipped with opening systems with minimal lines. The door frame is installed in the brickwork or plasterboard so as to be completely invisible. With this solution the external finishing architraves are no longer necessary. Even the door can be finished with the same finish as the surrounding walls in a modern and essential context in which the door is no longer the only protagonist: in fact, by depriving the door of visible frames and architraves, and by standardizing the colours, a result extremely clean and formal.