How this calculator works
Measure a rectangular room and use the coverage printed on the flooring pack. The waste allowance covers spare material and cuts according to your chosen percentage. Pack quantities round upward; irregular rooms should be measured in separate sections.
The formula
Adjusted area = length × width × (1 + waste % / 100)
Packs = ceiling(adjusted area / coverage)A quick example
A 20 m² room with 10% waste needs 22 m²; at 2.2 m² per pack this is 10 packs.
How to use this calculator
- Enter the labeled values, using a decimal point for fractions.
- Check the units and assumptions.
- Calculate, review the result and copy it if needed.
A few common questions
How is this result calculated?
Adjusted area = length × width × (1 + waste % / 100)
Packs = ceiling(adjusted area / coverage)
What assumptions should I check?
Measure a rectangular room and use the coverage printed on the flooring pack. The waste allowance covers spare material and cuts according to your chosen percentage. Pack quantities round upward; irregular rooms should be measured in separate sections.
Can I see a worked example?
A 20 m² room with 10% waste needs 22 m²; at 2.2 m² per pack this is 10 packs.