What waste percentage should I use for tile installation?

Use 10% waste for simple grid patterns on rectangular floors, 15% for standard wall installations, 20% for diagonal patterns, and 25% for complex layouts with many cuts or irregular shapes. Natural stone typically needs 15-20% waste due to color variations.

How do I calculate tiles for a shower or bathroom walls?

Measure each wall separately by multiplying width times height, then add the areas together. Don't forget to subtract areas for shower surrounds, built-in soap dishes, or other fixtures that won't be tiled.

Do I need to calculate grout separately from tiles?

Yes, grout is calculated differently than tiles. Grout coverage depends on tile size, grout line width, and joint depth. Use a dedicated grout calculator or consult the manufacturer's coverage chart for accurate grout quantities.

What's the difference between ceramic and porcelain tile waste?

Both ceramic and porcelain tiles have similar waste requirements, but porcelain is often more expensive and may require extra waste for color matching. Natural stone tiles typically need the most waste due to veining variations and potential color differences between batches.

Should I buy extra tiles if I'm mixing different sizes?

Yes, when mixing tile sizes or patterns, order extra material for each type. Different sizes may come from different production runs, making exact color matching difficult if you need to purchase more later.

Can I use this calculator for mosaic tile projects?

Yes, the calculator works for mosaic tiles too. However, mosaic sheets may have different coverage rates than individual tiles. Check if your mosaic tiles come on mesh backing and calculate accordingly, or measure sheet coverage directly.

Tile Calculator

Find out how many tiles and boxes you need for your floor or wall project, including a percentage for breakage and cuts. Optional cost estimation helps budget your remodel.

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Common Project Sizes

Popular room and area dimensions for quick tile estimation

Project Details & Tile Specifications

Enter area dimensions, tile size, and waste allowance

Project Type

Length (ft)

Width (ft)

Tile Width (in)

Tile Height (in)

Waste Allowance (%)

Tiles per Box

Price per Box (optional)

How it works: The calculator divides your total area by the area of one tile, then adds waste for cuts and breakage during installation.

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