The folding Libro, besides reducing the door space to the bare minimum without any intervention on the wall, suggests a new pleasant aesthetic proposal, instead of the compact full wing door, a light and more dynamic door with vertical panels. Libro door occupies a small space when it is opened and has a unique structural and functional design that makes it perfect to save space. The Libro Double version (four panels) allows to profit from the folding door characteristics (minimum assembly space, no impact on the wall, original aesthetic) even when big openings must be closed or wide passages must be created.