Bathroom floor tiling??

[0james0]

Even though the ceramic tiles arnt going to be seen?

Don't be lazy!

For the sake of a few tiles, it's worth doing, it will probably take just as long to measure where they should be as it will to actually tile it.

If the bathroom is upstairs, use flexi grout and decent interlocking boards underneath. If not, the floor will move and your tiles will crack.