Guide to Buying Extra Tile for Your Project:5-10% is enough
When updating areas like kitchens or bathrooms, knowing how much tile to purchase is critical. It’s common to miscalculate the amount needed by not considering waste from cuts and breakage. To avoid such pitfalls, aim to buy an additional 5-10% of tile beyond your area’s measurements. This simple guide walks you through the steps to calculate the right amount of tile, ensuring your project runs smoothly without unnecessary delays.

Step-by-Step Guide to Calculating Tile Requirements
1. Measure the Area
Start by measuring the area where the tiles will be installed. Convert all measurements from feet to inches for accuracy (1 foot = 12 inches). For instance, a room measuring 8 feet 7 inches by 5 feet 2 inches converts to 103 inches by 62 inches.
2. Calculate the Base Tile Area
Multiply these dimensions to find the total area in square inches, then convert to square feet by dividing by 144. For example:
103″ x 62″ = 6386 square inches
6386 ÷ 144 ≈ 44.35 square feet of tile needed.
3. Add the Waste Factor
To account for potential waste, add an additional 10% (for standard installation) or 15% (for complex layouts such as diagonal installations) to the total square footage:
- Standard installation: 44.35 sf × 1.10 = 48.79 sf
- Complex layout: 44.35 sf × 1.15 ≈ 51.00 sf
4. Calculate Trim Pieces
If your project includes exposed edges where the tile ends or meets other surfaces, calculate the number of trim pieces needed:
For a 10-foot length needing 6-inch bullnose pieces: 120 inches / 6 inches = 20 pieces of bullnose.
5. Professional Verification
It’s advisable to have a professional tile installer verify your measurements and calculations. This ensures accuracy, especially in complex or unique layouts.
Conclusion
Purchasing the right amount of tile, including a suitable allowance for waste, is essential for the success of any tiling project. By following these guidelines, you’ll avoid common pitfalls and manage your project’s budget more effectively, ensuring you don’t run out of materials before the project is completed.