About FlooringCalculator.co.uk
Updated February 2026Our Mission
FlooringCalculator.co.uk provides free, accurate online calculators for UK homeowners, DIY enthusiasts, and professional flooring fitters. Our tools help you work out exactly how much flooring material you need, avoiding the common problem of over-ordering (wasting money) or under-ordering (delaying your project).
Every calculator on this site is designed specifically for the UK market, using British measurements, UK standard product sizes, and pricing from major UK retailers. We do not convert American measurements or use generic international data — all figures are based on products available at retailers such as B&Q, Wickes, Carpetright, Tapi Carpets, and Flooring Superstore.
Our Methodology
Our calculators use straightforward geometric formulas combined with industry-standard wastage allowances:
- Area calculation: Length × Width = floor area in square metres (m²). For irregular rooms, we recommend splitting into rectangles and using the calculator for each section.
- Wastage allowances: Based on industry standards — 10% for straight-lay patterns, 12–15% for irregular rooms, and 15–20% for herringbone and chevron patterns. These figures come from manufacturer installation guides and professional fitter experience.
- Pack calculations: Total area (including wastage) divided by pack coverage, rounded up to the nearest whole pack. You cannot buy partial packs.
- Cost estimates: Based on average UK retail prices, updated quarterly. We monitor prices at major UK retailers and use the median price for each quality tier. Prices are indicative — always verify with your chosen retailer.
- Fitting costs: Based on data from Checkatrade, MyBuilder, and direct surveys of flooring professionals across UK regions. Regional multipliers reflect the genuine variation in trade rates between London, the South East, and the rest of the UK.
Data Sources
Our pricing and product data comes from the following sources:
- Product specifications and pack sizes from manufacturer websites (Quick-Step, Egger, Amtico, Karndean, Cormar, Adam Carpets, and others)
- Retail pricing from B&Q, Wickes, Carpetright, Tapi Carpets, Flooring Superstore, and United Carpets
- Fitting cost data from Checkatrade, MyBuilder, and the National Institute of Carpet and Floorlayers (NICF)
- Building Regulations references from the UK Government’s Approved Documents (Part E, Part B)
- Industry guidance from the Contract Flooring Association (CFA) and the British Standards Institution (BSI)
Accuracy and Limitations
Our calculators provide estimates based on standard rectangular rooms. They are designed to give you a reliable starting point for budgeting and ordering. However, please note:
- Actual material requirements may vary for rooms with unusual shapes, alcoves, bay windows, or fitted furniture
- Prices change over time and vary between retailers — always check current prices before purchasing
- Professional fitters should always conduct their own site survey and measurements
- Building Regulations requirements may vary depending on your specific property and local authority
Editorial Independence
FlooringCalculator.co.uk is an independent resource. We are not owned by, affiliated with, or sponsored by any flooring manufacturer or retailer. When we mention brands such as B&Q, Wickes, or Carpetright, it is purely for the reader’s reference — we do not receive any compensation for these mentions. Our revenue comes solely from display advertising, which allows us to keep all calculators completely free to use.
Contact Us
If you have questions, suggestions, or spot an error in our calculators, please get in touch. We welcome feedback from both homeowners and flooring professionals to help us improve our tools.