It's easy to make mistakes when measuring up your area to be tiled, but this handy step by step calculator will ensure you get the calculation correct 1st time.
Enter the dimensions of any areas that won’t need to be tiled, such as doors, windows, a bath, sink, or toilet etc.
To calculate the border required, we assume the following:
If you would like a larger border, you will have to take the height and/or width dimensions into consideration.
We suggest that you add an extra 10% onto the amount required, to allow for tile cuts or mistakes. (But don’t worry you can order more and bring back what you don’t use!)
Based upon the information you added in the above, you will need the following: