Terms of Use & Engineering Estimation Disclaimer

Effective Date: October 4, 2026

1. Acceptance of Terms

By accessing and using SpanSizer ("the Website"), you accept and agree to be bound by the terms and provisions of this agreement. If you do not agree to abide by these terms, please do not use this Website.

2. No Professional Engineering or Architectural Advice

The tools and formulas provided on this site are derived from publicly accessible building codes (including IRC, NEC, ACI, and ASTM standards). However, localized building codes, municipal amendments, soil bearing capacities, seismic zones, and environmental factors vary substantially. You must always have structural framing, electrical circuits, gas piping, and concrete foundations inspected and approved by your local municipal building department and certified trade professionals.

3. Limitation of Liability

Under no circumstances shall SpanSizer, its operators, engineers, or contributors be held liable for any direct, indirect, incidental, consequential, or punitive damages arising from the use of, or inability to use, our calculation engines. This includes, without limitation, material shortages, material surpluses, structural failures, electrical overloads, contractor billing discrepancies, or project delays.

4. Material Pricing & Market Variations

Estimated project costs, retail material prices, and contractor turnkey ranges reflect broad regional market averages. SpanSizer does not guarantee that materials can be purchased or contracted at the estimated figures in your specific geographic area or at any specific date.

5. Intellectual Property

The custom client-side calculation algorithms, interactive SVG visualizers, user interfaces, and editorial documentation on SpanSizer are protected by copyright and intellectual property laws. Reproduction, scraping, or programmatic cloning of our proprietary interfaces without prior written authorization is strictly prohibited.