Terms of Use

Estimates only

The calculators provide estimates based on the inputs supplied by the visitor. Results can differ from actual quantities, supplier yields, measured energy use, site conditions or project requirements.

No professional advice

Nothing on this site is a substitute for qualified engineering, construction, electrical, roofing, building or financial advice where such advice is required.

Use of the site

You may use the calculators for ordinary personal and commercial estimating. Do not rely on an estimate as the sole basis for safety-critical or regulated work.

Third-party services

The site may later contain links, affiliate relationships, analytics or advertising services. Update these terms when specific services are added.