Multiply the width and length of the tile to find the area it will cover; then, divide by 144 to convert the measurement to square feet. Next, divide the area of the room by the square footage of a single tile. This will tell you how many individual tiles you need to purchase.
Divide the total area of the room/space by the total area of the tile that you have chosen for that room. For example, if the size of the tile is 1 sq. ft., you will need 120 tiles to cover a space of 120 sq. ft.
Measure the length in feet, Measure the width in feet. Multiply the length figure by the width figure. This will be your total square footage for that portion of your project. Continue to repeat this for all parts of the space that will get the same tile.
Estimate the number of tiles you need by determining the square footage of the area you're tiling plus the square footage of each tile. For example, if you're adding a tile floor to a 100-square-foot bathroom, and each tile is 12″ x 12″ (one square foot), you'll need about 100 tiles.
Step 4: Calculate the number of tiles needed:
For example, if the square footage of the space is 120 square feet and each tile is 12 inches by 12 inches, the calculation would be 120 square feet / (12 inches x 12 inches) = 120 square feet / 144 square inches = 0.83 tiles.
How many square feet is a 20x20 room? The square footage of a room 20 feet wide and 20 feet long is 400 square feet. The square footage is found by multiplying the width (20 ft) by the length (20 ft).
The manufacture specifies 3/16 of an inch for grout spacing.
The national average to install ceramic or porcelain tile ranges between $13.50 and $63 per square foot. If by chance, you're looking to install tile flooring outdoors, the national average is between $14 and $83 per square foot.
Dimensions: Each tile measures 12 x 12 inches and 1.2mm thick. There are 45 tiles per box, which will cover 45 square feet.
If you only have 100 square feet of tile to install, you may need as few as 7-8 boxes of tile. But don't forget about the other products. You will need thinset cement to install 12×12 tile. And unless you are installing on concrete you will also need a tile underlayment.
To do so, use a tape measure to determine the room's length and width. Then multiply the length by the width to get your square footage. For instance, if the room is 12 feet wide and 12 feet long, you will need enough flooring for 144 square feet (12×12=144).
How many tiles are in a box? This will vary depending on the size of the tile. But typically you get anywhere between 6 and 48 tiles in a box. But it's not how many tiles are in a box that is important but the coverage.
How many square feet is a 16x16 tile? Hence 16*16 tile = 1.78 sq. ft.
Typically, installing ceramic or porcelain tile costs $3-5.5 per square foot, depending on local labor rates and size of the project. Stone tile installation costs are $5-8 per square foot. Installing mosaic tile can cost as much as $9-20+ per square foot, depending on the complexity of design you are looking for.
Average material cost of flooring at Lowe's is about $1.95 to $6.75 per square foot, and installation will cost around $2.25 to $8.50 per sq. ft.
Finished grout lines will vary from 1/16" to 3/16". However, the actual finished grout spacing will vary from 1/8" to 1/4" if 3/16" spacers are used. If smaller spacers, like 1/8", are used it will accentuate the size difference of handmade tile.
However, with rectangular tiles, such as 12×24's, it's quite common to install them in an offset pattern. Why? I've talked before about why a 50% offset is a bad idea and why you want to install your 12×24 tiles with a 33% offset instead. It has to do with the tile warpage that a lot of these big 12×24 tiles have.
A large tile, such as 12x24”, usually requires a 3/16” grout line, so it's best to check the manufacturer's recommendations to see how small you can go. Pressed tiles with a 1/16" grout line.
An easier visual might be to imagine your standard high school classroom. That's about equal to 500 square feet. Even without all the desks crammed in, that's not a huge space. It's actually only slightly larger than a hotel room, which is typically between 400 to 450 square feet when you add in the bathroom.
The square footage of a room 20 feet wide and 20 feet long is 400 square feet.