How to Calculate Tiles Needed
Calculating the number of tiles for a floor or wall project requires knowing the area of the room and the area of a single tile. It is industry standard to add 10-15% extra for "waste" (cuts, breakage, and mistakes).
The Formula
1. Calculate Room Area: Length × Width (e.g., 10ft × 12ft = 120 sq ft).
2. Calculate Tile Area: Convert dimensions to feet. (e.g., 12in × 12in = 1 sq ft).
3. Divide & Add Waste: (Room Area ÷ Tile Area) × 1.10.
Why Add 10% Waste?
If you buy exactly the amount you need, you will likely run out because you cannot use every scrap piece cut from the edges. 10% is safe for simple rooms; use 15% for rooms with diagonal layouts.