Use this page as an estimating workflow rather than a specification. Build the quantities in the order shown, use the linked calculators for the arithmetic, then verify every product-specific value against the material you intend to buy.
Separate each tiled surface
Floors, shower walls and splashbacks may use different tiles or layouts. Measure them separately rather than using one total area.
Convert tile dimensions correctly
Tile length and width in millimetres must be converted to metres before calculating tile area.
Choose waste from layout complexity
Straight layouts in simple rooms often create less cutting than diagonal patterns, niches and multiple corners. Keep the allowance visible and adjustable.
Use the adhesive and grout product data
Coverage varies with substrate, trowel, tile size and joint geometry. Product-specific coverage is more useful than a generic bag count.
Calculators for this job
- Tile Calculator
- Tile Adhesive Calculator
- Grout Coverage Calculator
- Floor Area Calculator
- Wall Area Calculator
Common mistakes
- Mixing wall and floor areas when products differ
- Ignoring pattern or cut complexity
- Using a generic adhesive coverage figure
- Forgetting that tiles are purchased as whole boxes
Pre-order checklist
- Re-measure the main dimensions or compare them with a current drawing.
- Replace generic coverage, density, spacing or pack figures with the actual product data.
- Keep the base quantity, waste allowance and pack rounding as separate steps.
- Check whether any part of the job requires professional design, approval or a manufacturer-specific installation method.
- Save the raw measurements so the estimate can be reproduced if the supplier queries it.
The project planners deliberately stop at quantity planning. They do not certify structural adequacy, regulatory compliance or installation suitability.