Privacy Policy
Effective November 4, 2026
The privacy story of this site is short because the architecture makes it short: the lumber calculator runs entirely in your browser, saved results never leave your device, and there is no project database on our side to protect, sell, or leak. This page documents the few data flows that do exist, in plain language.
You type
Board size, wall length, species, waste factor, pricing — processed by JavaScript running in your own browser.
Your device keeps it
Saved results and preferences live in your browser's local storage. There is no server-side copy, no sync, and no account to link them to.
Nothing is sent to us
No calculator value is ever transmitted. The only server contact is the page load itself, plus anonymous analytics counts.
What we collect — and what we never do
✗Never collected, never stored
- —Account credentials — there are no accounts
- —Your name, address, or jobsite details
- —Email addresses (unless you email us first)
- —Calculator inputs — board sizes, species, wall lengths, waste factors, prices
- —Saved results — they live in your browser's local storage only
- —Location data beyond the coarse, anonymized analytics defaults
✓The complete list of what we do
- •Anonymous page-view and tool-interaction events. Counts like "a board-foot estimate was calculated" via Google Analytics 4 with IP anonymization. No personal data, no calculator values.
- •Coarse device context. Browser family, screen class, and referrer — the aggregates any web server sees, used only to keep the layout working on real devices.
- •Email correspondence you initiate. If you write through the contact page, your email and its contents are handled like any correspondence: read, replied to, kept no longer than useful.
The details, in order
Where do my calculator inputs and saved results actually live?
On your device, in your browser. Numbers you type — board thickness, width, and length, wall lengths in feet, wood species, waste factor, price per board foot — are processed locally and are not transmitted to us. When you save a calculation, the estimate is written to your browser's localStorage as one of your saved results. That is how the tool remembers your projects without a server. Clear them any time via the Reset control, your browser's "clear site data" option, or developer tools. We cannot recover them, and we never see them.
What about the Copy link / share feature?
Sharing encodes your chosen inputs into the URL itself — the link contains the same numbers you see in the address bar, and nothing is stored on our side. Paste it into a message to a partner, hand it to the lumber yard, or drop it in your project notes; it keeps working, and it keeps being your choice what goes into it.
Which analytics run, and what do they see?
Google Analytics 4 with IP anonymization, counting page views and tool interactions (for example, that a board-foot estimate was calculated). These events contain no personal data and no calculator values. You can opt out with Google's opt-out browser add-on.
Do you use cookies or advertising?
The site itself sets no functional cookies. If advertising is displayed, Google AdSense may set cookies to personalize or measure ads; you can review and control ad personalization in Google Ad Settings. Third-party ad vendors operate under their own privacy policies. Advertising never influences board-foot formulas, species presets, or calculator behavior — see the disclaimer.
How long is anything kept?
| Item | How long |
|---|---|
| Saved results (your browser's localStorage) | Until you delete them — via Reset, browser "clear site data", or developer tools |
| Share links (URL parameters) | Nothing is stored server-side; the link lives wherever you paste it, containing only inputs you chose to include |
| Anonymous analytics events | Standard Google Analytics 4 retention windows; no calculator values are ever attached |
| Contact emails | Kept while the conversation is live, then no longer than reasonably necessary |
Children's privacy
The site is a general-audience tool and does not knowingly collect personal information from children under 13. Because there are no accounts and no uploads, there is no user-profile data to begin with.
Your rights
🗑️Erase everything
Clear the saved results from your device any time — we hold no copy to delete.
🚫Opt out of analytics
Use Google's opt-out browser add-on, or block analytics in your browser settings.
🛡️Control ad personalization
Adjust or disable ad personalization through Google Ad Settings where advertising is shown.
📮Ask us anything
Questions, complaints, or a data concern that doesn't fit a category — the contact page reaches a human.
If you are in the EEA/UK and believe we process personal data about you, you may also lodge a complaint with your local supervisory authority. To reach us about any of this, use the contact page or the terms of service for the governing-terms side of the relationship.
Changes to this policy
We may update this policy as the site evolves; the effective date above will change with any material revision. Given the architecture, the realistic worst case is an analytics change — the calculator will remain a browser-local tool with nothing to hand over.