Terms of Use

1. About this website

Material Calculator (materialcalculator.co.uk) provides free online calculation tools to help users estimate material quantities and costs for construction, DIY and landscaping projects in the United Kingdom. The website is operated as a free service and is not affiliated with any material supplier, manufacturer or professional body.

2. Nature of the service — guidance only

All results produced by our calculators are indicative estimates for guidance purposes only. They are not professional advice, structural calculations, or a substitute for the advice of a qualified person.

Material quantities can vary significantly depending on site conditions, ground bearing capacity, substrate type, material supplier specifications, application methods, skill level, and environmental factors. Our tools apply standard UK industry assumptions and published data which may not reflect the specific requirements of your project.

You must not rely solely on the results of any calculator on this website when making purchasing decisions, preparing formal quotes, or commencing any construction or civil engineering work. Always verify quantities with a qualified professional, structural engineer, or your material supplier before ordering or committing to any works.

3. Limitation of liability

To the fullest extent permitted by applicable law, Material Calculator and its operators accept no liability whatsoever for:

• Any financial loss, over-ordering, under-ordering, or wasted expenditure arising from reliance on our calculation results;
• Any loss, damage, injury or cost arising from construction or installation work carried out in reliance on our tools;
• Any inaccuracy, error or omission in the data, algorithms, pricing or output produced by any calculator;
• Any indirect, consequential, special or incidental loss of any kind;
• Interruptions to the service, including downtime, errors or unavailability.

Nothing in these terms limits or excludes liability for death or personal injury caused by negligence, fraud, or any other liability that cannot be lawfully excluded under English law.

4. Accuracy of data and pricing

We aim to keep all pricing, coverage rates, densities, compaction factors and technical standards up to date. However, material prices fluctuate regularly and vary by region, supplier and trade relationship. All prices shown are indicative mid-market estimates for guidance only — they do not represent quotes from any supplier.

Technical data (such as BS/EN standards, waste factors, and coverage rates) is compiled from industry publications and manufacturer guidance. We cannot guarantee that this data is current at any given time. You should always verify technical specifications against the manufacturer's documentation for the specific product you intend to use.

5. Not a substitute for professional advice

Some calculators on this site touch on areas that are subject to building regulations, planning law, structural requirements or electrical safety standards. In particular:

• The cable size calculator provides guidance under BS 7671 only. All electrical installation work in a dwelling must be designed, installed and certified by a competent person registered under Part P of the Building Regulations;
• Structural calculations (for example, rafter span tables or foundation depths) are indicative only. Any structure that requires structural integrity should be designed by a qualified structural engineer;
• Planning and permitted development guidance is for general information only and does not constitute legal advice. Requirements vary by property, location and local authority.

Material Calculator is not a regulated professional service. Nothing on this website constitutes legal, structural, electrical, financial, or planning advice.

6. Intellectual property

All content on this website — including but not limited to text, code, calculation algorithms, SVG diagrams, design elements, and written guides — is the intellectual property of Material Calculator and is protected by copyright.

You may use the output of our calculators for personal or commercial project planning. You may not copy, reproduce, republish, distribute or create derivative works from the website's code, design or written content without our prior written permission.

7. Acceptable use

You agree not to use this website to:

• Attempt to access, copy, reverse-engineer or scrape our code, data or algorithms by automated means;
• Overload, disrupt, or interfere with the operation of the website or its hosting infrastructure;
• Use the site in any way that is unlawful, harmful or fraudulent.

We reserve the right to block access from any IP address or user agent that appears to be abusing the service.

8. External links

This website may contain links to third-party websites for reference purposes. We have no control over the content of those websites and accept no responsibility for them or for any loss or damage that may arise from your use of them. Inclusion of a link does not constitute endorsement.

9. Privacy

We do not require users to create an account, and we do not store the inputs or results of any calculation. Our use of cookies and any data we collect is governed by our Privacy Policy.

10. Changes to these terms

We may update these Terms of Use at any time. The current version will always be available at this URL. Continued use of the website following any change constitutes acceptance of the revised terms. We recommend checking this page periodically.

11. Governing law

These terms are governed by and construed in accordance with the laws of England and Wales. Any disputes arising in connection with these terms or your use of the website shall be subject to the exclusive jurisdiction of the courts of England and Wales.

12. Contact

If you have any questions about these terms, please contact us via our contact page.