01 Summary at a glance
BuildCalc Journal (“we”, “us”) publishes free construction calculators and estimating guides at example.com. We do not offer accounts, we do not sell personal information, and the numbers you type into a calculator never leave your device.
| Data | Why | Where it lives | How long |
|---|---|---|---|
| Calculator inputs and results | Show your estimate | Your browser memory only | Until you close or reload the tab |
| Display preferences (theme, accent, text size, width, font) | Remember your layout | Your browser’s local storage (key “bc-prefs”) | Until you clear site data |
| Server logs (IP address, user agent, URL, time) | Security, abuse prevention, reliability | Our hosting provider | Short, rolling retention set by the host |
| Advertising identifiers and cookies | Show and measure ads (only if you consent where required) | Google and its ad partners | Per Google’s policies |
| Emails you send us | Reply to you | Our email inbox | Up to 24 months, then deleted |
02 Information we collect
Information you provide
The only way to give us personal information is by emailing us at hello@example.com. We use your name, email address and message solely to answer you.
Information processed in your browser
Every calculator (concrete slab, block wall, footing and Sonotube, rebar and driveway cost) runs entirely in your browser. Dimensions, quantities, prices and results are not transmitted to our servers and are not stored after you leave the page.
Information collected automatically
When you load a page, our hosting provider receives standard request data such as your IP address, browser type, referring page and the URL requested. This is used to deliver the page, keep the service secure and diagnose errors.
04 Advertising and Google AdSense
We may display ads served by Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this and other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the internet.
- Manage or opt out of personalised advertising in Google Ads Settings.
- Learn how Google uses data from partner sites at policies.google.com/technologies/partner-sites.
- Opt out of many third-party vendors’ personalised ads at aboutads.info (US) or youronlinechoices.com (EU/UK).
Where the law requires consent (the EEA, the UK and Switzerland), personalised ads are shown only after you choose to allow them through a consent banner. Ads never influence calculator results or recommendations.
05 How and why we use information
We process information only for these purposes, each with a lawful basis under the GDPR and UK GDPR:
- Providing the website and keeping it secure: legitimate interests.
- Remembering your display preferences: legitimate interests / strictly necessary storage you request.
- Showing personalised advertising: your consent.
- Replying to your emails: legitimate interests and, where relevant, taking steps at your request.
- Meeting legal obligations and defending legal claims.
We do not sell your personal information and we do not use it for automated decisions with legal effect.
07 Your privacy rights
Depending on where you live, you may have the right to:
- EEA / UK (GDPR, UK GDPR): access, correct, erase, restrict or object to processing, data portability, withdraw consent at any time, and complain to your supervisory authority (in the UK, the Information Commissioner’s Office).
- California (CCPA/CPRA): know, access, correct and delete personal information, and opt out of the “sale” or “sharing” of personal information for cross-context behavioural advertising. We do not sell personal information; use Google Ads Settings above to limit ad personalisation. You will not be discriminated against for exercising these rights.
- Australia (Privacy Act 1988): access and correct your personal information and complain to the Office of the Australian Information Commissioner.
- New Zealand (Privacy Act 2020): access and correct your personal information and complain to the Office of the Privacy Commissioner.
To exercise any right, email hello@example.com. We respond within 30 days (or sooner where the law requires) and may ask you to verify your identity first.
08 Data retention and security
We keep personal data only as long as needed for the purposes above. Emails are deleted after at most 24 months; server logs are kept by our host for a short rolling period. The site is served over HTTPS and we apply reasonable technical and organisational measures, but no internet service can be guaranteed 100% secure.
09 Children’s privacy
The site is intended for a general audience and is not directed at children under 13 (or 16 where local law sets a higher age). We do not knowingly collect personal information from children. If you believe a child has sent us personal data, email hello@example.com and we will delete it.
10 Third-party links
Guides may link to manufacturers, suppliers, standards bodies or other websites. We do not control and are not responsible for their privacy practices; please read their policies before sharing information.
11 Changes to this policy
We may update this policy as the site or the law changes. The “Last updated” date above shows the latest revision, and material changes will be highlighted on this page. See also our Terms of Service.
12 Contact us
Questions or requests about privacy? Email hello@example.com or use the contact page. Please put “Privacy” in the subject line.
Frequently asked questions
Do the calculators send my measurements to your servers?
No. All calculations run in your browser. The dimensions, prices and results you enter are never transmitted to or stored on our servers.
Does this website use cookies?
We use browser local storage to remember your display preferences. If advertising is enabled, Google AdSense and its partners may set advertising cookies, and where the law requires it they are used only after you consent.
How can I opt out of personalised ads?
Visit Google Ads Settings (adssettings.google.com), aboutads.info (US) or youronlinechoices.com (EU/UK), or change your choice in the site’s consent banner where one is shown.
Do you sell my personal information?
No. We do not sell personal information and we do not require an account to use any calculator or guide.
How do I request access to or deletion of my data?
Email hello@example.com with your request. We reply within 30 days and may need to verify your identity. You can also complain to your local privacy regulator.