Gretsch-Unitas has developed the G-U HS Lift and Slide Door System that allows users of large full-height glazing to switch between use as a window or door.

The handle rotation gently lifts the door, allowing it to slide open or hinge out from the base as a window.

The system is capable of carrying loadings of up to 250kg and can be designed into PVCu, timber or aluminium systems.