Disclaimer

Last updated: March 2026

General Disclaimer

The tools, calculators, and generators provided on builder.tools are for informational and estimation purposes only. They are designed to help UK builders and tradespeople with everyday calculations and paperwork — but they are guidance tools, not gospel. Always check with a professional before making important decisions.

Calculation Accuracy

While we make every effort to ensure our calculators produce accurate results, we cannot guarantee their accuracy for every scenario. Construction projects involve many variables — ground conditions, waste rates, regional pricing, material availability — that may not be captured by our simplified models. Always:

• Verify calculations independently before ordering materials
• Add appropriate waste/contingency margins beyond what the tool suggests
• Consult qualified professionals for structural calculations (steel beams, timber spans, lintels, foundations)
• Follow current Building Regulations and British Standards
• Check with your local Building Control office when in doubt

AI-Generated Documents

Documents generated by our AI tools (quotes, RAMS, certificates, lift plans, heritage assessments) are templates produced by artificial intelligence. In plain English: a computer wrote them, not a qualified professional. They:

• Must be reviewed and edited by a competent person before use
• Should not be submitted to clients or regulatory bodies without thorough review
• May not cover all hazards, regulations, or site-specific requirements
• Do not replace professional risk assessment or document preparation
• May contain errors or omissions that could have serious consequences if not caught

If you use an AI-generated RAMS, quote, or certificate without proper review, you do so entirely at your own risk.

Standards and Regulations

References to British Standards (e.g. BS7671, BS5534), Building Regulations (Part A, Part L, Part P, etc.), CDM 2015, LOLER, HMRC CIS guidelines, and other regulatory frameworks are based on our understanding at the time of development. Standards and regulations change — sometimes significantly. Always refer to the latest published versions and consult with qualified professionals.

Cost Estimates

Any material costs, labour rates, or pricing shown in our tools are approximate guides based on typical UK market rates. Actual prices vary by region, supplier, quantity, and market conditions. Do not use our cost estimates as the sole basis for quoting jobs or making purchasing decisions.

Affiliate Links & Product Recommendations

Some tool pages and our trade partners page contain affiliate links to retailers and suppliers. We may earn a commission if you make an eligible purchase—at no extra cost to you. Featured partners that do not pay commission are labelled separately. See our Affiliate Disclosure for full details.

No Liability

Builder Tools accepts no liability for any loss, damage, injury, or claim arising from the use of our tools or reliance on their outputs. This includes but is not limited to incorrect material quantities, inaccurate cost estimates, errors in generated documents, and any decisions made based on our tools. Use of our tools is entirely at your own risk.