Terms of Use

By using Project Measure Lab, you agree to use the site and its results for lawful informational and planning purposes. If you do not agree with these terms, do not rely on the calculators or content.

Estimates and user responsibility

Calculator outputs depend on the measurements, assumptions, selections, and other values supplied by the user. You are responsible for checking measurements, units, project requirements, product specifications, local conditions, and any code or permit requirements that apply to your work. Results can be rounded and may not match supplier packaging or contractor estimating practices.

No warranty

The site is provided on an as-available basis for general information. We do not warrant that every calculation, cost range, link, or explanation will be suitable for every project or remain current indefinitely. Where a decision could affect safety, structural performance, electrical safety, legal compliance, or significant spending, obtain appropriate professional or supplier confirmation.

Acceptable use

You may use the public calculators for personal or business planning. You may not attempt to disrupt the site, bypass security controls, falsely represent the site as your own service, or use automated activity in a way that materially interferes with normal access for other visitors.

External services and changes

Links to third-party websites are provided for reference and do not transfer responsibility for their content to this site. We may revise calculators, assumptions, pages, or these terms when methods, sources, site features, or legal requirements change.