An ideal solution for those who want a comfortable combination of interiors with a terrace and a panoramic view from a large window surface is the use of 85 mm HST sliding doors. An indisputable advantage of this type of patio door is the possible size of the construction. The width of the sash can be from 800 mm to 3000 mm and a height of up to 2700 mm in white, which allows you to create a glass surface of over six meters. Special carpentry mechanisms allow you to move huge sashes using a minimum force.

Despite their huge dimensions, the 85 mm lifting sliding doors remain an effective barrier to heat loss.