Privacy Policy

Data collection. This website does not collect personal information. No user accounts, forms, or login systems exist. All calculations run in your browser or are pre-generated — no input data is sent to our servers.

Cookies. This site uses cookies only for advertising and analytics purposes through third-party services (Google AdSense, Google Analytics). These services may collect anonymous usage data. You can opt out of personalized advertising at Google Ads Settings.

Analytics. We use Google Analytics to understand which pages are most useful. This data is aggregated and anonymous — we cannot identify individual users.

Third-party services. This site uses Google AdSense for advertising. Google may use cookies to serve ads based on your prior visits to this or other websites. See Google's Privacy Policy.

Contact. For privacy questions, contact us via the information on our About page.

Disclaimer: This tool provides estimates for informational purposes only. Always verify calculations with a licensed professional and consult your local building department before making decisions based on these results.