In this case, the

After the guide profile is repaired to the wall, an intermediate profile is put up. It is required to measure its length so that when inserting it into the guide, he does not burst him and feel free. The distance is measured between them starting from the middle of the profile itself in the middle there is a strip that determines the edge of the drywall sheet when lining. In this case, the profiles on the edges cling to the metal screws (bug) and the structure itself clings to the ceiling with suspensions (one suspension of eighty square centimeters). It is at this stage that there is a difficulty that cannot be found when decorating any other surface.