How to calculate the square meterage you need.
- Split the area you need to cover into easy to work with rectangle areas.
- Enter each length and width of your areas into a table like below. (One area per row).
- In the last column of each row work out each area: “area = length x width”.
- Add all the areas together in the total row.
- Add an extra 10% to the square meterage. This is for cutting waste and mistakes, can be kept as replacements.