A feeling of vast, wide-open space, even when the windows are shut: the seamless transition between indoors and outdoors makes Sky-Frame Original a pioneer of modern design. The windows are framelessly transparent from the ceiling to the floor. This is made possible by the track system that is fully concealed in the floor – the result of 15 years of development. Sky-Frame Original ensures that heat and cold remain outside, and it can be combined with all Sky-Frame products, making it a true all-rounder.