Who makes this site
One publisher, some AI assistance, and no credentials we cannot back up.
Last updated 29 September 2026Publisher
Alessandro Mora operates Calcumetryx and is the publisher and editor of record. The full identification required under Spanish law is on the legal notice. Contact is info@calcumetryx.com.
How pages are drafted
The wording of the pages and the code of the calculators are drafted with AI assistants working under the publisher’s direction. This is stated here and on the editorial policy so that a reader can weigh a page accordingly.
What the assistance is checked against:
- Every calculator has automated tests whose expected values are derived by hand from first principles rather than recorded from the code’s own output.
- Statements about a software product are checked against that vendor’s own site, with the page and the date recorded.
- External figures carry a source record, and the build fails when one is incomplete.
Credentials
No individual on this site is presented as an engineer, estimator, surveyor, contractor or other specialist. No page has been through a professional review, and none says it has. Results are arithmetic on the numbers you enter; they do not replace a survey, a geotechnical report, an engineer or a written quote.
If a qualified professional reviews a page in future, that page will say who, in what capacity and on what date, with their written consent. Until it does, it makes no such claim.
How authorship works here
Pages are published under the name Calcumetryx Editorialrather than under individual author names. No page is the work of a named specialist, and inventing one would be a lie about who wrote it. Where a page’s structured data names an author it names the organisation, never a person; the only person named in the site’s markup is the publisher, as founder of the organisation.
No author is better than a fake author. Real expert review is added when a real expert exists, and not before.
Three different kinds of work
They are easy to blur and we keep them apart, because a page that says “reviewed” is making a claim about which one happened.
- Editorial research. Finding sources, reading vendor sites, checking search results, drafting and organising. This is what the AI assistance does today, under the publisher’s direction.
- Technical review. A qualified person checks a formula, a method or a source for correctness. Nobody has done this on any page.
- Hands-on testing. A person uses a product or a workflow and reports what happened. Nobody has done this either, and no page says otherwise.
Adding a contributor
Nobody is listed here because nobody has been confirmed. When a real person agrees to be named, the entry will carry:
- Their real name and their real role.
- Their real experience, stated plainly and without inflation, with links that exist.
- Which pages or which kind of work they reviewed, and on what date.
- Their written consent to being named.
Until then the site does not show stock photographs, biographies, licence numbers, years of experience or an “expert reviewed” badge, because none of them would be true.
The rest of how this site works
- Editorial policy — What Calcumetryx publishes, the evidence a page needs before it goes live, and how advertising and the owner’s commercial interest are kept out of the content.
- Sources and data — Which sources a number may come from, which it may not, and how every external figure on the site is recorded and dated.
- How we review software — The evidence levels, the three states of a claim, and the rules for prices and rankings on buyer’s guides. No scores, no stars.
- Corrections policy — How to report an error in a calculation, a guide or a statement about a product, what we do about it, and the public log of changes.