The assembled shutter box is secured to the head of the window and the guide rails direct to the side jambs or packers. The whole unit is then offered up to the prepared aperture. Every shutter is made to individual size and specification. Built in shutters are ideally suited to tilt/turn or sliding sash windows but can be adapted to suit outward opening casements.
The internal fascia of the shutter box must remain accessible across its full width.
It is visually acceptable with most internal decors.