How much flooring do I need... a guide to measurement
by Becky Kleanthous for TheCalculatorSite.com
Number crunching for new flooring
Getting new flooring can really transform a room, so it's often an exciting prospect to go shopping for floorboards or tiles.
But if the thought of measuring and calculating floorspace has you anything less than thrilled, then rest assured that you will find this guide indispensable.
Just read on to ensure your DIY dream doesn't become a DI-WHYYY disaster!
Calculate your floor's square feet
Whichever choice you've opted for... tiles or floorboards, you first need to calculate the area of your room in square feet.
When you work out the area of the floor you're updating, do remember that this has got to include nooks, cupboards and window bays, so measure carefully!
To calculate the square feet measurement, multiply the length of the room by the width. The total is the area of the floor.
20' width X 16' length = 320 square feet (ft²)
To have absolute confidence with this step, use the square footage calculator available here.
If you've got an awkwardly shaped room, or you're measuring for several rooms all needing the same new surface, sketch out the floor-plan and divide it into regular shapes. Just calculate the square footage of each component, then add them together to get the total.
For laminate and hardwood floorboards or any "strip" flooring
Buy a surplus of 5-10% (a percentage calculator is here, if needed) based on your calculations in Step 1. There will be waste since
Buying the precise area of floorboards is guaranteed to leave you with a sad patch of naked floorspace, so make sure to get extra!
Just multiply the square footage by 1.05 to see what a 5% increase looks like, or by 1.1 to get the figure with a 10% increase.
For example: 320ft² x 1.1 = 352ft²
Wood, Ceramic, Vinyl, Linoleum and Stone floor tiles
Once you know the square footage of the room, it's time to calculate how many tiles you need to fill the space. Of course, this will depend on the size of tile you are using, so consult the list below to find the magic number you need. Then, just divide the area of the room by the magic number.
If your tile size is… your magic number is…
4" x 4" … 0.1089
For example, a 320ft² room is going to be updated with 18" flagstone floor tiles,