Accordion doors allow to maximise space and are characterised by an essential advantage of regular wooden door, i.e. heat preservation.
All door panels can be folded to the left or to the right. Therefore, wooden folding doors are a great minimal solution for maximising space, e.g. when the idea is to join the living room and the outdoor terrace.
Another advantage of the accordion doors is a lowered threshold. However, when choosing a folding door, consult a specialist regarding the available panels sizes. Also, keep in mind that it is a bit more difficult to open this type of door as opposed to other terrace type doors.