Tiles are also made of various materials like ceramic and you can also get a natural tile like a slate tile, a marble tile, a metal tile or a travertine tile. You can use various types of tiles to make the design more interesting, but as tile thicknesses may vary preparing the substrate for such designs would require a lot of care. Tile patterns whether for shower tiles or a bathroom floor tile floor need to be based on the overall sizes of the surface being treated. It is essential to base a design on full tile sizes as cutting of tiles is a problematic job and would also render the design less effective. Work out the entire design before hand and calculate the different types and colors of tiles being used and ensure that you have sufficient quantity of the material before you start laying the tiles.