Calculator inputs and results
Calculations run in your browser. Calculator entries and results are not sent to me or to an external calculation service, and the site does not intentionally save them in cookies or browser storage.
Your browser may preserve form values through its own features. On calculator detail pages, Reset restores the example inputs and recalculates the example result. The homepage quick calculator restores its inputs and clears the result. Avoid entering confidential information into calculator fields or sending it in an email.
Website delivery and Cloudflare
Cloudflare provides hosting and network services for the website. Delivering and protecting a page can involve processing request information such as an IP address, browser details, requested address and request time. This is separate from the numeric values you enter into a calculator.
Cloudflare may use security cookies for features such as bot protection or security challenges. Whether those cookies are set depends on the features enabled and the request. Cloudflare’s privacy policy describes its handling of website request information.
Advertising, analytics and browser storage
I have not added advertising or visitor analytics to this version of the site. It does not have an advertising-consent control, tracking-pixel integration or account system. Fonts and brand images are served with the site.
The calculator and navigation features do not set cookies or use local storage or session storage. Security cookies managed by Cloudflare are distinct from those application features.
If you send an email
When you email admin@lumbertool.org, your email address, any name you include, message and attachments are processed by the email services involved in delivery and are available to me to respond to you.
I use correspondence to answer questions, investigate errors and handle follow-up. Please send only information relevant to your request. Correspondence is retained as needed for those purposes and any applicable legal obligations.
You can ask about, correct or request deletion of information you sent. Requests are reviewed in light of the information available and any applicable retention obligations.
Changes to this policy
If the site’s information practices change, this policy will be updated to describe them. The date above identifies this version of the policy.