The most inexpensive — ordinary flat ceilings. Then the cost grows exponentially: two -level, domed, dunes, waves, etc. D.
We conclude: a relatively affordable ceiling with backlighting is best done from drywall boxes with stretching between the stretch ceiling. The boxes and backlight can be arranged personally, and the suspended ceiling will come out at a low cost, because the corners, first of all, turn out to be straight, the area of the pulled ceiling is reduced, it is not necessary to go around the heating risers (they go into the box), the electric lights on the ceiling are also not very necessary.
