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Flooring Calculator

Estimate flooring area and cost, including a waste allowance.

Inputs

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Saved Scenarios

— select 2+ to compare

Flooring Needed (m²)

22.00

Estimated Cost

$550

Spark says

How it's calculated

Formula

Flooring=Room Area×(1+Waste%100)Flooring = Room\ Area \times \left(1 + \dfrac{Waste\%}{100}\right)
Waste\%
— Extra material for cuts and mistakes

What is the Flooring Calculator?

This calculator finds the room's floor area and adds a waste allowance for cuts, offcuts and mistakes, giving a realistic purchase quantity.

How to use it

  1. 1 Enter the room's length and width.
  2. 2 Set a waste allowance percentage.
  3. 3 Enter the price per square meter.

Worked examples

5m × 4m room, 10% waste

Buy 22 m² of flooring.

Try it

Tips

  • 💡 10% waste is typical for straight-laid flooring; diagonal patterns or complex rooms may need 15% or more.

Frequently asked questions

Why do I need extra material beyond the exact room area?

Cutting flooring to fit around edges, doorways and obstacles always wastes some material — a waste allowance ensures you don't run short mid-installation.