To avert this disaster from occurring in the first place, you need to ensure that the tiles will make a square before you lay ...

Loose-lay tile to check the size of cut pieces. Snap a chalk line across the center of the room, parallel to the most prominent wall and aligned with the edge of a tile. Use the 3-4-5 triangle ...

In Cat Vidal’s 50-square-foot bathroom, that was definitely the case, but she pulled off giving the “dark oddly-shaped space” a transformation with stunning tile and a more contemporary aesthetic.