they were ceramic tiles from bnq and they were about 300 by 200, i did it in brickwork ive got pictures of the finished job but dnt no how to upload them to this, i used my 6mm trowel and made the adhesive perfect for the tiles it just didnt harden cheap crap was the problem and im doin a bathroom tomorow onto tiles too and i only have 1 and a half tubs of my own blue star coz this guy says hes already bought the materials and guess wot, there from bnq!!!!! nightmare, im only tiling 1 metre high i think its m square metres so i hope i can do most of it with my own stuu then i can get more for the other toilet on sat!