They are

Before fixing the crate, it is necessary to decide how the plastic panels for walls will be oriented. It must be taken into account that the vertical arrangement of the panels visually eliminates the room upward, and horizontal will make it wider and below it. The elements of the crate are installed perpendicular to the arrangement of the panels. They are mounted with an interval of 0.4 — 0.5 meters, using conventional screws or screws for fixing.