Privacy Policy

Last updated: October 11, 2026.

Calculator inputs

Dimensions, openings, corner counts, and prices are processed in your browser. This release has no account system, saved projects, cookies, analytics scripts, or advertising scripts. Calculator inputs are not submitted to a server by this site. Reloading clears edits unless you load one of the built-in example links.

Requests and correspondence

Serving a static page requires normal HTTP requests. A hosting provider may process technical request information such as an IP address and requested path. This calculator does not maintain its own visitor tracking system.

If you email [email protected], your email provider and ours process the message. We use the details you send to respond and investigate reported problems. Send only information needed to reproduce the issue. You may use the same address to request deletion of correspondence we retain, subject to applicable operational obligations.

External links and changes

Related tools and other destinations have their own privacy notices. If advertising or analytics is introduced later, this notice and any required privacy controls must be updated before activation. No such code is part of this release.