How Many Tiles Do I Need?

When measuring for floor tile the rule is:
Length x Width + Waste = Amount Needed

Waste Factor will vary based upon tile size, layout, configuration of room, patterns, etc. Typical waste factor is about 10%. Add 15% for tile being installed diagonally or for a room with lots of jogs and corners. These installations will require more cuts and thus more waste.

Size

Tile size can range anywhere from smaller mosaics that are 3/8", to 24" × 48" slab tiles and everything in between. Square sizes (same width and length) are the most popular, accessible, and easiest to install.

While straight edge tiles (rectangular, square, parallelogram) are the most common, unique tile shapes also exist, though installation is not as easy. Large tile sizes can make smaller rooms appear bigger, as well as more open and clean because there are fewer grout lines.

However, installing larger tiles results in more wastage, while using smaller tiles can help add texture to a room.

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Follow These Steps:

Enter the length and width of the tiles. Alternatively you can input their individual square footage if you know it. Our square footage calculator can help you.
Select your gap: Positive means theres a gap, zero means no gap and a negative gap indicates overlapping tiles.
Enter the dimensions of the space you want to tile (length and width or total area)
Add your wastage, to account for broken or problematic tiles.

Now into the logistics and economics of the project:

Make sure you know how many tiles you need.
Input the number of tiles in each box that you intend to buy.
Input the cost of each box of tiles.

Calculate Area of a Tile:

You also need the measurements for a tile that you are going to use in your project. Consider the same guidelines as mentioned above to calculate the area of a wall or floor. Make sure that the length and width are in the same unit.

It is necessary to know the size of the tile before installing the tile on the required area. If we take the size of the tile in feet just multiply the length by width e.g.1ft.1ft.=1ft2
We took the size of tile for an example, you can change it according to your desire.

Gap size 0.25mm

Length of the area 14ft, width of area 10ft =140ft2.So, we need exact 140 tiles and include 5% wastage. Then, we need 147 tiles to install on the required place.

Tiles with the same length and width are the most demanding, accessible and uncomplicated to install but the tiles with other shapes like rectangular, parallelogram and unique style shapes also exist, despite that installation is not as easy.

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Estimate Thin-set or Mastic:

Choose thin-set or mastic depending on your tiling application. You will likely want to use thin-set for most flooring applications, while you’ll probably choose mastic for walls and backsplashes.
Calculating how much thin-set or mastic you need requires choosing a trowel size for your project. Larger and smaller notch trowels require more or less thin-set.
Different thin-set and mastic products will cover different amounts, and most will have a coverage chart on the bag indicating how many square feet the product covers for your trowel. If you don’t have access to the coverage chart, you can learn how to estimate thin-set material.

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Factor in Between 10 to 20 Percent Overage.

Even for a tiling expert, buying the bare minimum amount of tile needed to cover the wall or floor isn’t going to cut it. Many scenarios warrant a little extra:

You may need extra tiles to create tile fragments to fill in corners of the wall or floor where a full tile won’t fit.
Some of the tiles you buy may already be broken on arrival. (It’s not uncommon for two to three percent of tiles sold in boxes to be broken or chipped!)
You may snap a tile while cutting or laying one, or repairing one that has cracked.
You may need a fresh tile to replace one that comes loose after install.
Your tile may get discontinued down the road. If tile of the specific color or style you chose is later discontinued, you’ll be relieved to have some matching tiles on hand to use as replacements; without them, you may have to retile the whole floor or wall or replace faulty tiles with tiles that don’t match those already installed.

Get Tiling

Check out the full range of tiles available at your local Bunnings or see the D.I.Y. Advice section for more hints and tips.