You go to the toilet, a malodorous closet built of gypsum board.

Your goal is to get down to the underlying ceiling, which is likely gypsum board.

Your best bet is to put up a ceiling of gypsum board (dry wall).

If not, you may have to put up a new layer of gypsum board.

It is actually a kind of gypsum board, but reinforced with fibers.

But painting in a complicated way on gypsum board is more difficult for us.

These anchors have a special point that can be hammered through the gypsum board.

It is approximately twice that of gypsum board, making handling by one person difficult.

But some of these new buildings, all they have is studs with gypsum board on them.

Then patch with a few pieces of water-resistant gypsum board.