What tips should I keep in mind?

A professional installer wastes 5-7% on average; a first-timer wastes 12-20%. Keep 2-3% of tiles as repair spares — matching tiles years later is often impossible. Rent a wet saw instead of using a snap cutter to reduce breakage waste.

Tile Waste Calculator

Calculate the exact number of extra tiles to buy based on room shape, pattern, and installer experience level.

Results

Visualization

How It Works

Tile waste comes from three sources: pattern cuts, room shape complexity, and installer skill level. Always add a repair reserve too.

The Formula

Total Waste % = Pattern Waste + Shape Waste + Experience Waste + 2% Repair Reserve

Variables

Pattern Waste — 5% straight, 8% offset, 12% diagonal, 15% herringbone
Shape Waste — 2% rectangle, 5% L-shape, 8% irregular
Experience — 2% professional, 5% DIY, 8% beginner

Example

DIY herringbone in an L-shaped room: 15% + 5% + 5% + 2% = 27% waste. On 120 tiles = 33 extra = 153 total.

Tips

A professional installer wastes 5-7% on average; a first-timer wastes 12-20%.
Keep 2-3% of tiles as repair spares — matching tiles years later is often impossible.
Rent a wet saw instead of using a snap cutter to reduce breakage waste.
Complex cuts around toilets and doorframes generate the most waste.