A unique folding sliding door that effortlessly meets the current thermal insulation standard and also impresses with its narrow face widths and wide choice of options. All folding constructions are impressively smooth and easy to handle. Schueco folding sliding systems offer the benefits of a wide choice of styles, quiet operation, perfect weathertightness, and high transparency. Different requirements can be met with the options of thermally insulated or non-insulated folding sliding systems. This makes them ideal for universal use in the residential and commercial sector.