Flooring Calculator
Calculate the net floor area and the area to order once a wastage allowance is added, for flooring sold by area (laminate, vinyl, carpet).
- Free to use
- Accurate results
- No registration required
- Works on all devices
Enter your room dimensions to find the flooring area to order, including a wastage allowance.
10% is typical for straight-lay flooring; use more for diagonal layouts or irregular rooms.
Your result
22
Area to order
Net floor area20
AI explanation
Formula
Area to order = net area × (1 + wastage%)Worked example
5m × 4m room, 10% wastage
| Field | Value |
|---|---|
| Room length (m) | 5 |
| Room width (m) | 4 |
| Wastage allowance (%) | 10 |
| Net floor area | 20 |
| Area to order | 22 |
Assumptions
- For material sold by piece (like tiles), use the Tile Calculator instead — this calculator is for material sold by area, such as laminate, vinyl, or carpet rolls.
Frequently asked questions
How much extra flooring should I order?
10% is a common default for a simple rectangular room laid straight; irregular rooms or diagonal layouts often need 15% or more.
Does this work for carpet, which is sold in rolls of fixed width?
This gives the total area needed — for roll goods, you'll still need to account for roll width and seam placement separately, which can add extra waste beyond this estimate.
What if I'm installing tiles instead?
Use the Tile Calculator instead, since tiles are sold by piece count rather than area.