Policy
Terms of use
The calculators and guides are planning tools. Use them to frame a negotiation, then rely on written quotes and qualified advisers.
01Estimates, not advice
Figures on this site are typical market ranges and modelled estimates. They are not quotes, and nothing here is legal, tax, accounting or engineering advice. Engineering seals, tax positions and contract terms must be decided by appropriately licensed professionals for your specific facts.
02Names and trademarks
Product and company names belong to their owners and are used only to identify the products and services compared. Their use implies no affiliation or endorsement.
03Use of the site
You may share calculation links and printed briefs freely. Do not misuse the enquiry form. These terms are governed by the laws of the United States and the state where the engagement is performed. Updated 6 November 2026.