Privacy Policy
Short version: we do not collect your personal data, and the calculators keep everything on your device.
What we collect
Nothing that identifies you. This is a static website with no accounts, no sign-up, and no contact form. We do not ask for your name, email, or any personal details to use the tools.
Calculators run in your browser
Every calculation happens locally in your browser. The values you enter, wall dimensions, block sizes, and the like, are not transmitted to us and are not saved. Refresh the page and they are gone. We do not use cookies or browser storage to persist your inputs.
Analytics and cookies
The site ships with no analytics packages and sets no tracking cookies. If this ever changes, we will update this page before turning anything on, and describe what is collected and why.
If you email us (see the contact page), we receive whatever you send and use it only to respond. We do not add you to a mailing list.
Third-party links
We link to source documents on external sites, such as standards bodies and manufacturers. Those sites have their own privacy practices, which we do not control.