Structures of this type are built using standard window profiles. The sliding of the sashes is possible thanks to a special hardware mechanism. After turning the handle from the closed position, the leaf slides into the room, perpendicular to the plane of the window, and then moves to the side. The door also has a leaf tilt function. PSK sliding doors are available in three basic opening variants:|2-quarter - where the leaf slides to the left or right; fixed 3-quarter - where the middle movable sash slides to the left or right; fixed 4-quarter - where the two middle sashes slide to the left and right fixed quarters, respectively.
The maximum dimensions of PSK door leaves are about 1600x2100mm or 1400x2300mm. The advantages of such a solution are moderate price and high tightness. Disadvantages include a high threshold in the form of a window frame and problems with opening and closing the leaves, which can occur when not used properly. The main benefit accompanying such a solution is the creation of a large glazed area while maintaining the functionality of the rooms. PSK windows do not take up space inside the room when opened, this allows for free space planning.
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