ContractorCalc

Terms & Estimating Disclaimer

Last updated: September 20, 2026

ContractorCalc provides general planning estimates, not engineering, architectural, accounting, tax, insurance, legal, safety, code, or manufacturer advice.

Verify before relying

You are responsible for checking dimensions, site conditions, plans, specifications, waste, production rates, coverage, supplier pricing, delivery charges, taxes, insurance rates, building codes, manufacturer instructions, contract terms, and all other project requirements. Do not order material or submit a binding bid solely from a calculator result.

No warranty

The tools are provided “as is” without a guarantee of accuracy, completeness, fitness for a particular project, or uninterrupted availability. To the extent permitted by law, ContractorCalc and ThorntonAI are not liable for losses resulting from use of the tools.

Acceptable use

You may use the calculators for legitimate personal or business estimating. You may not disrupt the site, misrepresent its outputs as certified professional advice, or reproduce the site as a competing copy.