Drywall isn't generally recommended as a backing for tile. This is mostly because the drywall can flex somewhat and put stress on the tiled area. However, if you're planning to install ceramic tile on drywall in a relatively small area, such as a kitchen backsplash, you can probably get away with it with a few extra considerations.
Things You'll Need
- ceramic tile
- tile adhesive
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Choose a small or medium-sized tile, since larger tiles can put too much strain on drywall.
Make sure that the drywall is completely dry.
Glue tiles to the drywall using tile adhesive, and leaving about 1/4 inch of space between every two tiles. Wait for the adhesive to set completely.
Apply grout thickly in the gaps between the tiles. Don't worry about neatness at this point.
Use a dry sponge to wipe across the tiles' surface, removing as much extra grout as possible.
Dampen the sponge and wipe the surface of the tiled area repeatedly, smoothing the grout lines and removing any stray grout from the tiles. Allow to dry completely.