Flooring Calculator

Calculate how much laminate, vinyl or carpet you need including wastage. Get pack and cost estimates.

Last updated: April 2026 · Source: GOV.UK — Building Regulations Approved Document C

Area Needed

22.0 m²

Room Area

20.0 m²

Packs (2.2m²)

10

Est. Cost

£550.00

Disclaimer

This calculator is provided for informational purposes only and should not be considered as financial or tax advice. All calculations are performed locally in your browser — no personal data is collected or sent to our servers. Rates and thresholds are sourced from HMRC and GOV.UK and are updated for the current tax year. Always verify results with HMRC or consult a qualified professional before making financial decisions.

How It Works

Flooring quantity is calculated by measuring the room area (length × width) and adding a waste allowance. For laminate and engineered wood, 10% extra is standard for straight layouts and 15% for diagonal or herringbone patterns. Vinyl and carpet are sold by the linear metre from rolls (typically 2 m or 4 m wide), so you calculate based on roll width and room dimensions.

This calculator supports rectangular rooms, L-shaped rooms and irregular shapes. For an L-shape, split the room into two rectangles, calculate each separately and add them together. The calculator also estimates underlay if needed (most laminate and engineered wood requires underlay; carpet has its own).

Enter room dimensions and flooring type. The calculator shows total area, area including waste, number of packs (laminate and wood are sold in packs covering 1.5–2.5 m²) or linear metres (carpet, vinyl). It includes an estimated cost per m² for budget, mid-range and premium options.

Example: Living room 5 m × 4 m, laminate flooring

  1. Room area: 5 × 4 = 20 m²
  2. Add 10% waste: 22 m²
  3. Packs (2.0 m² per pack): 22 ÷ 2.0 = 11 packs
  4. Underlay: 22 m² (sold in rolls of 15 m²) — 2 rolls

Source: GOV.UK — Building Regulations Approved Document C

Frequently Asked Questions

What does the Flooring Calculator do?
Calculate how much laminate, vinyl or carpet you need including wastage. Get pack and cost estimates. All calculations are performed in your browser using official UK rates and thresholds.
Does this include waste allowance?
Yes. Most building material calculations include a standard 10% waste allowance. You can adjust this figure depending on the complexity of your project and cutting requirements.
Are prices accurate?
Material prices are indicative estimates based on average UK prices. Actual costs vary by region, supplier, brand and current market conditions. Always get quotes from local suppliers.