Privacy: Your measurements and saved plans
You can use the calculators without an account, address, ZIP code or phone number.
Analytics and cookie choices
The live site uses Plausible and Google Analytics to measure page visits and general actions such as running a calculator or saving a plan. Measurements, prices, project notes and saved plans are not included in these events.
Plausible counts every visit without cookies. It may receive browser and device information and a referring page.
Google Analytics is run by Google, which receives the page address, the actions we measure on this site and browser and device information, and sets cookies that tell repeat visits apart. Its advertising features are off.
In the European Union, Iceland, Liechtenstein, Norway, the United Kingdom and Switzerland, and whenever we cannot tell which country a visit comes from, Google Analytics loads only after you choose Accept on the bar at the bottom of the page. Decline loads nothing from Google. Your choice is kept in this browser for six months, then the bar asks again.
Elsewhere, Google Analytics loads with each page unless you choose Decline. Cloudflare, which delivers our pages, tells your browser which country the visit comes from.
Wherever you are, Cookie choices at the bottom of any page, or the button below, changes your choice. Decline stops Google Analytics on this site in this browser and deletes its analytics cookies. If analytics was running, the page reloads to apply your choice. Decline holds on every page; outside the countries above it is kept until you change it.
Your project stays in your browser
Calculations run on your device. Moving between connected tools uses session storage, and Save in this browser uses local storage. Neither sends measurements or quotes to us. Clear the saved plan or clear this site’s browser storage to remove it. Downloaded receipts remain wherever you save them.
Your color-theme choice is also saved in this browser.
When you follow a source
Links to manufacturers and government agencies open their websites, which have their own privacy practices. Hosting can record normal connection details such as IP address and requested page; calculator inputs are not placed in those page addresses.
Messages
The contact form sends your report to our contact inbox at Cloudflare: the reason you choose, your name if you give one, your reply address, the summary, the details and any page or source link you add. Cloudflare runs an automatic security check that never asks you to solve anything, and it sees your IP address and browser information while doing so. To stop repeat sending, we keep a scrambled form of your IP address and reply address for two hours, never the addresses themselves.
We keep each report for 12 months, then it is deleted automatically, and a copy goes to a private Discord channel our team reads. We use your reply address only to answer you. To see or delete a report you sent, ask through the same form and we will delete both copies.
Your measurements, quotes and saved plans are never attached to a report. If you describe a project, leave out your address and any contractor quote with personal details.