Best custom aluminium windows manufacturer: Multi-Panel Sliding Doors – Multiple panels are used in these doors, i.e. two or more moving panels, and one or more fixed panels. Commercial buildings, larger residential properties or homes with open plan areas can use multi panelling systems. With enough height, they offer a wide unobstructed view, and can make a statement in all spaces. Bi-Fold Sliding Doors – Although technically not a true sliding door, bi fold sliding doors are one of the most popular doors to be installed in big openings. As…