Things You'll Need:
- Tape measure
- Pencil
- Paper
- Calculator
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Step 1
Use the tape measure to measure the length and width of the room to tile.
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Step 2
Multiply the length by the width to find the room's square footage.
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Step 3
Multiply the square footage by 10 percent, or 0.10, to determine the additional amount for mistakes and waste.
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Step 4
Add this number to the square footage measurement for the total area to be covered by tile.
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Step 5
Divide this number by the square footage found on a carton of floor tiles to determine how many cartons of tile are required.












