Engineering Disclaimer

Estimates Only — Not a Substitute for Professional Engineering

RoofTrussCalculator.com provides preliminary estimates based on standard structural formulas and common industry assumptions (typical dead loads by material, standard live load minimums, and user-entered snow and wind values). These results are intended for planning, budgeting, and educational purposes only.

Calculator outputs are not a stamped engineering design, do not satisfy building code requirements on their own, and must not be used as the sole basis for construction, permitting, or any structural decision.

No Professional Relationship

Use of this Site, including its calculators and guides, does not create an engineer-client, architect-client, or contractor-client relationship between you and RoofTrussCalculator.com, its operators, or contributors. We are not acting as your structural engineer, architect, or contractor.

Always Verify Locally

• Snow load, wind load, and seismic requirements vary significantly by region — always confirm actual values with your local building department, not a general estimate
• Building codes (such as the IRC/IBC in the US, or your regional equivalent) set minimum requirements that may differ from the defaults used in this calculator
• Every permitted structure should have its final truss and rafter design reviewed and stamped by a licensed structural engineer
• Material availability, grading, and span tables vary by supplier and region

Limitation of Liability

RoofTrussCalculator.com, its operators, and contributors accept no liability for any loss, damage, injury, or cost arising directly or indirectly from the use of, or reliance on, any calculation, formula, or content on this Site. This includes, without limitation, structural failure, construction defects, material waste, project delays, or personal injury. Use of this Site and its calculators is entirely at your own risk.

Cost Estimates

Material, labor, and installation cost figures shown by this Site are rough planning estimates based on general pricing assumptions and are not a quote. Actual costs vary by region, supplier, material availability, and site conditions — always obtain a formal quote from a licensed contractor or supplier before budgeting a project.

Questions

If anything in this disclaimer is unclear, or if you have questions about how a specific calculation works, contact us via our Contact page before relying on the result for any real project.