Who sells non-slip floor tiles for a wetroom?

I am installing a wet room and would like to find a limestone-effect or ceramic tiled flooring with an official barefoot C rating to ensure it isn't slippery. Do you have any suggestions? AM, Guildford, Surrey. Wet barefoot C rating is the highest grade of slip resistance. The gritted tiles in the Sediments floor tiles range from the Elements collection by H & R Johnson, 01782 575575, johnson-tiles.com, imitate natural sedimentary rocks. They are wet barefoot C-rated, and the White, Beige and Sand colourways are most appropriate if you want a limestone effect. The tiles are 300mm sq and cost from around £42 for 12. The Kerastar Rocktop range, also by Johnson, is wet barefoot C-rated and has a more heavily textured stone-like surface. The off-white Athena colourway is a good shade. These tiles are 300mm sq and cost from around £26 for 12. Pilkington Tiles, 0161 727 1111, pilkingtons.com, produce a swimming pool tile called Pinhead, which is wet barefoot C-rated. Its textured surface ...  more