I live in Spain,
Since building materials have different brand names here and in the US i´d like to know exactly what you guys call ceiling tile, there are two products i find here easily, one is dry wall material 13mm thick (1/2 inch) this comes in the standard wall size and a smaller one that is like 2x3 feet. The other material is harder and thicker with no paper backing it´s just formed clay, on one side it has a pattern and the back side is smooth. This one is rigid and from what i´ve seen not totally straight.

thanks,

Diego

In North America, a "Ceiling Tile" is a soft, medium density paper board about 3/4" thick and measures 2 feet by 4 feet.

There is a painted side to present to the room that usually has a mottled pattern to help absorb sound. The back is unpainted and smooth, the back is often used for building as it is large, smooth, takes pins nicely and is inexpensive.

Our 'Drywall' comes in 4' x 8' sheets has a 1/2" centre made of plaster and is covered on all sides with heavy paper. Some fellows use this to build on because it is large, smooth, takes pins nicely and is inexpensive but it is heavy.

I hope this helps.

There is also a ceiling tile that is the same 4ft by 2 ft in size, however it is found in kitchens and is made with dry wall. They are much heavier than the standard ceiling tile and I prefer them as they are alot tougher and not as easy to tear up. Good Luck, Dave

what an odd topic for the forum

my guess is it's for a building board.