Last updated: January 2026
By using ConstrCalc.com, you accept these Terms & Conditions in full. If you disagree with any part, do not use the site.
ConstrCalc® is a free tool provided for informational and estimation purposes. Every calculation is performed on values you enter; ConstrCalc does not verify accuracy of your inputs.
ConstrCalc outputs are not engineering advice, construction advice, financial advice, or legal advice. Consult a licensed professional before making project decisions.
The ConstrCalc® mark, site design, methodology, and content are the property of ConstrCalc. You may not reproduce the site design or content without written permission.
Data you enter in the calculator stays in your browser. Text you submit via the Contact form becomes our record of your enquiry.
We aim for continuous availability but do not guarantee uptime. The site may be unavailable for maintenance without notice.
ConstrCalc, its authors, and its operators are not liable for direct, indirect, or consequential loss arising from use or reliance on the calculator or content.
These terms are governed by the laws of the jurisdiction where the site operator is domiciled.
Terms may be updated at any time. Material changes are dated at the top.