Like wallpaper, tiles are produced in batches (shade & calibration). It is important to make sure you have enough of the same batch. For your project your professional tiler can work this out, they should allow an extra ten percent more tiles for cuts, wastage and site conditions when laid square and an extra fifteen percent for diamond fix. It is also wise to keep an extra^ box or two over at the end of the project for any later remedial work. When you do want to calculate the number of tiles you need, divide the area into square/rectangle areas, now measure the length and width of the floor/wall area that is to be tiled, and then multiply the two measurements to get the square meterage - i.e. 10mx6m = 60m2 / approximately 33'x19'5" = say 644ft2

Now, determine the tile area by adding your figures together and then calculate how may tiles you need. (chart below may help)

i.e. floor measures 10mx6m, 10x6 = 60m2 Tile size 60x60cm, 0.60x0.60 = 2.78

Therefore 60(m2)x2.78 = tiles needed plus/add your extras

## Tile size (mm) |
## Tiles per square metre |
## Tile size (mm) |
## Tiles per square metre |

100 x 100 | 100 | 300 x 600 | 5.55 |

140 x 565 | 12.64 | 316 x 452 | 7 |

150 x 75 | 88.65 | 330 x 470 | 6.45 |

150 x 150 | 44.44 | 333 x 333 | 9.02 |

200 x 100 | 50 | 400 x 400 | 6.25 |

200 x 200 | 25 | 450 x 450 | 4.94 |

200 x 250 | 20 | 500 x 500 | 4 |

200 x 500 | 10 | 500 x 1000 | 2 |

250 x 380 | 10.53 | 600 x 600 | 2.78 |

300 x 100 | 33.33 | 800 x 800 | 1.56 |

300 x 200 | 16.67 | 900 x 450 | 2.47 |

300 x 300 | 11.11 | 1000 x 1000 | 1 |