Construction
Tile quantity
Estimate the number of tiles for a floor or wall.
Calculators / Construction / Flooring material
Flooring material calculator
Estimate flooring area including waste and packs.
On this page
Room area20m²
Area including waste22m²
Packs required10packs
Calculator controls
How to calculate
Estimate flooring area including waste and packs.
packs = ceil(room area × (1 + waste rate) ÷ pack coverage)
Worked example
Room length (m): 5; Room width (m): 4; Waste allowance (%): 10; Coverage per pack (m²): 2.2.
Room area: 20 m²; Area including waste: 22 m²; Packs required: 10 packs.
Assumptions and limits
Measure each room separately and follow the product’s layout, cutting, batch, and spare-material guidance.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Estimate flooring area including waste and packs. The result follows the displayed formula and keeps every adjustable assumption visible.
When this tool is useful
Use this tool to plan quantities or compare scenarios before making a purchase or technical decision.
Understanding your inputs
| Input | What to enter |
|---|---|
| Room length (m) | Enter a number of at least 0.000001 and no more than 1000000000000. |
| Room width (m) | Enter a number of at least 0.000001 and no more than 1000000000000. |
| Waste allowance (%) | Enter a number of at least 0 and no more than 100. |
| Coverage per pack (m²) | Enter a number of at least 0.000001 and no more than 1000000000000. |
Frequently asked questions
What can change the flooring material result?
Measure each room separately and follow the product’s layout, cutting, batch, and spare-material guidance.
Should I round the inputs first?
No. Enter the best measurements available and round only the practical final quantity, such as full packs, boards, sheets, or components.