International Tiles
197 Kingston Road
KT19 0AB
0208 394 2928

International Tiles is a trading name of Inter Tiles & Interiors Ltd

Measuring Guide

We always recommend that a qualified tiler measures for you and works out your quantities.  Ideally it should be the tradesperson who will be undertaking the job as each will have their own idea of waste, cuts involved and the exact layout. Taking measurements from a plan should be considered a guide and when the room is ready for tiling the fixer must recalculate and confirm exact requirements.

This is a rough guide in order that you can get an initial idea of costs and we would urge you to measure carefully as we are unable to accept returns for tiles left over.  If you are planning to do the job yourself we will give you lots of guidance and help but it should be remembered that we cannot be held responsible for inaccuracies in helping you to calculate your quantity.

How to Measure the Floor?

Measure the length and width of the room and multiply the answers to give the square meterage.  For example 8m x 2m = 16 square metres.

How to Measure the Walls?

Measure the height of the room and multiply it with your floor measurements, you should have four answers, or more if the room is an unusual shape, take each wall area as a separate section.  For example width of floor for one area x height.  Then add all your answers together.

To deduct radiators, doors and windows, measure each items width and height and deduct it from your total area.


Measure the length or height of the area where you want the border to run.  This is called your linear run.  Once you have this we can calculate how many borders you will need


  • use a tape measure that is longer than the length of your room
  • always use the same units – ideally centimeters!
  • Describe which areas are being tiled eg floor, wall, window sill
  • It is easier to tile without bathroom furniture in place
  • Draw a simple sketch to write down your measurements, graph paper is ideal
  • We would usually recommend an extra 10% to allow for cuts and some spares
  • It is always a good idea to store some tiles for the future because batches can vary considerably and tiles can get discontinued very quickly