Privacy
Plumb does not ask you to make an account, and this version does not embed analytics, advertising scripts, or social pixels. The pages are static files.
What the calculators store
A job is saved by the address bar. Lengths, bag choices, and allowances sit in the query string so a link reproduces the sheet. Those values are project dimensions, not an account. If you send the link to someone, they see the measurements you put in it. Don’t put anything else in the fields.
The imperial/metric choice is kept in local storage on your device under a key belonging to this site, so the next calculator opens in the same system. Clearing site data removes it. The shared link can still force a unit with u=us or u=si.
The mailbox is on the contact page. A message contains whatever you put in it. Don’t send account numbers or anything you would not put on a postcard. Mail is used to answer you and to correct a cited figure. The address is not sold. Nothing you type into a calculator is emailed anywhere.
Ads later
The rectangles marked “Advertisement” are empty. When a display network or an affiliate program is added, this page and the disclosure will name it before the script ships. A future ad script can set its own cookies; it does not do that today.
Children
The calculators are ordinary home-project tools. They are not directed at children, and we don’t knowingly collect information from them.