To clarify it is worth saying that plasterboard sheets are supplied with a standard width, which is 120 cm, and their length can lie in the range from 200 to 400 cm. The second attribute, the acquisition of which is also required — these are metal profiles. They serve as a frame. These profiles are divided into rack, the dimensions of which are 60×27 mm, and guides — with dimensions of 27×28 mm. In the wallpaper, their length is 3 m.