A pivot door, instead of hinges, is supported on a bearing some distance away from the edge, so that there is more or less of a gap on the pivot side as well as the opening side. In some cases the pivot is central, creating two equal openings

Fixed window,Casement windows,Aluminium door,Sliding door.

Awning windows open out like a casement, but are hinged at the top. Their placement includes above or below other windows and over doors. This allows more ventilation and light.