How to calculate your tile quantity requirements.
If you measure your room in feet and inches the simple and safe method to convert to square metres is:-
Example (measurement in feet & inches).
- 7 feet 6 inches X 5 feet 8 inches CONVERT TO INCHES – 90” x 68” = 6120 square inches.
- 6120 divide by 1296 = 4.72 square yards (dividing by 1296 converts square inches to square yards)
- 4.72 divided by 1.2 = 3.9 square metres (dividing by 1.2 converts to square metres)
- At this point ADD an extra 10% for cuts & waste – 3.9 plus 10% = 4.29 square metres • ROUNDED UP = 5 square metres of tiles will be needed
- Example 2 (measurement in yards
- 4 yards x 3 yards = 12 square yard
- 12 divided by 1.2 = 10 square metres
- Add 10% for cuts and waste – 10 plus 10% = 11 square metres.
Some tips to help you arrive at the correct tile quantity calculation:
Calculate each wall individually. Give each wall a number, when you’ve finished making the calculation for each wall check you have the calculation for each wall and add them all up to give the total coverage.
- If you have included the extra 10% in your calculation for each wall, MAKE THE FOLLOWING REDUCTIONS;
- Deduct 1.5 square metres for a door
- Deduct 1.2 square metres for a bath
- Do not make adjustments for windows once you added 10% for cuts and waste.
Border Calculations
- Add together the width of the walls (e.g. 6+7+6+7 = 26 feet)
- Convert to linear metres by DIVIDING by 3.25 (26 divided by 3.25 = 8 linear metres)
- Divide 8 by the width of the border (some may call this the length) e.g. 8 divided by .2 (20cm) = 40 borders.
- When calculating borders DO NOT take out the door as this will allow for the cuts.