Cut the tiles while they're attached to the sheet. Individual tiles are too small to cut safely. If you installed porous tile (such as stone) let it sit for at least 30 minutes, then apply a grout ...

It’s pretty appealing to use tiles that come in sheets that have peel-and-stick backing and can be cut to fit. You can press the pieces to the wall and — presto — have a fresh, stylish surface.

He then flipped the cut tile upside down so the cut side is on the bottom near the counter top. “The reason for that is because there may be a rough edge to a cut tile, even if using a wet saw.