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Terms of Service

Effective Date: June 3, 2026

1. Acceptance of Terms

By accessing or using Quantity Estimator at https://www.quantityestimator.com (the "Site"), you agree to be bound by these Terms of Service. If you do not agree, please do not use the Site.

2. Calculator Accuracy Disclaimer

Important: The calculators on this site are for estimating purposes only and are not a substitute for professional engineering, architectural, or trade advice.

Quantity Estimator provides material estimation calculators based on industry-standard formulas (ACI 318, NRCA guidelines, NEC tables, AWC span tables, and similar published standards). These formulas are intended to help with project planning and budgeting. However:

  • Results are estimates only. Actual material requirements may vary based on site conditions, product specifications, installation methods, and local code requirements.
  • Calculator results should be verified by a licensed professional before structural work, permitted construction, or large material purchases.
  • We make no warranty, express or implied, that calculator results are accurate, complete, or suitable for any specific purpose.
  • Always add appropriate waste factor to any material order. Confirm bag or unit coverage rates with your specific product's spec sheet before ordering.

3. Not Professional Advice

Nothing on this Site constitutes engineering, architectural, structural, electrical, plumbing, HVAC, or any other licensed professional advice. Do not rely solely on calculator outputs for structural decisions, code compliance, permitting, or safety determinations. Consult a licensed professional for your specific project.

4. Affiliate Link Disclosure

This Site contains affiliate links to Home Depot, Lowe's, Amazon, and other retailers. When you click an affiliate link and make a qualifying purchase, we may receive a small commission at no additional cost to you. This commission helps support the Site and allows us to keep all calculators free.

We only link to products that are directly relevant to each calculator's results. Affiliate relationships do not influence calculator outputs, formula selection, or editorial content. The presence of an affiliate link is not an endorsement of a specific product.

5. Use of the Site

You agree to use the Site only for lawful purposes. You may not:

  • Scrape or systematically extract calculator data or content for commercial use
  • Attempt to reverse-engineer, modify, or reproduce our calculator formulas for redistribution without permission
  • Use automated tools to submit form data at scale
  • Interfere with the Site's infrastructure or availability

Personal and professional use of calculators is fully permitted and encouraged.

6. Intellectual Property

All content on this Site — including calculator designs, formulas, text, graphics, and code — is the property of Quantity Estimator or its content suppliers and is protected by copyright. You may share links to calculator pages and quote brief excerpts with attribution, but may not reproduce whole pages or calculator systems without written permission.

7. Limitation of Liability

To the maximum extent permitted by law, Quantity Estimator and its operators shall not be liable for any direct, indirect, incidental, consequential, or punitive damages arising from your use of this Site or reliance on calculator results, including but not limited to material over-ordering or under-ordering, project delays, structural failures, code violations, or any other damages.

Your use of this Site is at your own risk. The Site is provided "as is" without warranty of any kind.

8. Third-Party Links

This Site links to third-party websites (Home Depot, Lowe's, Amazon, and others). We are not responsible for the content, privacy practices, or accuracy of any third-party site. Linking to a third-party site does not constitute an endorsement.

9. Changes to Terms

We reserve the right to update these Terms at any time. The effective date at the top of this page reflects the most recent revision. Continued use of the Site after changes are posted constitutes acceptance of the revised Terms.

10. Governing Law

These Terms are governed by the laws of the United States and the state in which Quantity Estimator operates. Any disputes shall be resolved in the applicable courts of that jurisdiction.

11. Contact

Questions about these Terms? Contact us at hello@quantityestimator.com.