In the interior, the folding sliding equipment with the upper carriage rail can be used as an alternative with a guide at level with the floor, without a protruding threshold, and is therefore particularly suitable for people with walking disabilities and wheelchair users.

In the open position all the folding flaps are pushed aside and form a narrow package there.

Transition wing can be easily opened as single opening or double opening independently from other folding wings. When this wing is double-opened, it provides an additional ventilation opportunity in the ventilation position.