Depends on the hardiness of the tile, not the size. Offhand if the tile
is advertised as a wall tile, I would not use it on the floor.

wrote:
I have heard various answers to this question: Should 6"x6" 8.0 mm
ceramic wall tiles be used on a bathroom floor?
Can anyone answer this with quantifiable results to back it up? The
tiles I'm looking at have a "rough" texture (not slick).

Thanks,
Greg