Last updated: 2026-10-01
Estimates only
The calculators and guides in the UK edition of WeekendCalc produce estimates for planning purposes. Real jobs vary with materials, site conditions, workmanship and local rules. Results are not a substitute for a builder's quote, an engineer's design or the instructions on a product label.
Not professional advice
Nothing here is engineering, architectural, electrical, structural, legal or safety advice. For anything structural or safety-related (decks, stairs, framing, roofing, concrete foundations, anything load-bearing, gas or electrical work) check the Building Regulations that apply where you live with your local authority building control, and use a suitably qualified and registered tradesperson where the rules require one.
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The site is provided “as is” without warranties of any kind. We make reasonable efforts to keep results accurate but do not guarantee them. Nothing in these terms limits any liability that cannot be limited by law, including your statutory consumer rights. Subject to that, WeekendCalc is not liable for any loss, damage or cost arising from use of, or reliance on, the site, including ordering too much or too little material.
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Governing law
These terms are governed by the law of England and Wales, and the courts of England and Wales have jurisdiction, without affecting any mandatory rights you have where you live elsewhere in the UK.
Changes
We may update these terms; the date above shows the latest revision.