Extras available for order for the outward opening windows:
- ventilation slot – a regulated (closed/open) ventilation slot in the frame
- a fixative of the handle – locks the handle in a way that the window can no longer be opened with one hand (the so-called child lock)
- insect screen in a wooden frame, installed with hinges inside the window
- interior window sills – of laminated timber or MDF
- jamb extensions – extends the frame to match the precise thickness of a wall
- exterior window sills – of zinc or aluminium
- claddings