A spacer is a channel or a notch in the window frame or door frame in which the glass is placed. Its main role is to ensure a stable and safe mounting of the glass in the frame and to enable its sealing. The shape and size of the spacer depend on the thickness of the glass and the specification of the frame. Usually it is a rectangular groove that runs along the edge of the frame in which the window is to be mounted. A spacer is made using joinery tools such as milling machines, sterns or saws. The precision of the spacer is crucial to ensure that the glass fits well and is securely mounted in the frame. This solution is widely used in the production of traditional wooden windows and doors, as well as in the renovation of old windows, where the preservation of original style and technique is particularly important.


