A three chamber folding door system with thermal insulation that enables arrangement of wide open passageways. The visual thickness of profiles in use has been reduced to give the design a light look. A new design of integrated hardware: one hinge with the bottom truck, one hinge with the grip and handles at a low height (reduce the overall dimensions of the assembled structure). The new hardware improve the functionality of design.

• width: frame: 35,8mm to 57mm; leaf:73mm
• Insulation depth: frame: 75mm, leaf: 75mm
• sill height: 22mm
• available filling thickness range: 4 to 51mm
• max leaf weight: 100kg, both opened to the outside and to the inside 2,3,4,6 or 8-sectional designs, both opening to the outside and to the inside
• modern design