Our ventilated threshold is surface varnished. They are ready for installation. The profile of the ventilated threshold is similar to the rebated threshold, having a small step on top, but this model also leaves an air gap between the door and the threshold; the rebate covers the gap from sight. This model is excellent for ventilated apartments and flats, allowing air to pass under the door. The smooth threshold also leaves a gap underneath the door but it is not covered like in this model.

