That is why, there should be special caution here. Measurement accuracy should not deviate by more than five millimeters. After that, it is necessary to take on the installation of the fastener profile. They are attached around the entire perimeter of the ceiling. The length of each profile should be less than two centimeters than the length of the ceiling. After that, it is necessary to install special racks under the lamps, and then to the installation of the stretch ceiling itself.