Last updated: January 2026
The guides, country references and articles on this site are written to help estimators do their work, not to attract search traffic. This policy explains how that content is produced, reviewed and corrected.
Every guide, article and reference page is written and edited by people with construction and estimating knowledge. Content is not generated in bulk, not spun from existing articles, and not published without review.
The test we apply is whether a working estimator would find the page useful and recognise it as accurate. A page that reads well but tells a practitioner nothing they did not know has failed that test regardless of how it performs in search.
The platform is funded by advertising. Advertisers have no input into what we publish, no visibility of content before publication, and no ability to influence how a material, method, supplier or standard is described.
We do not accept paid placements, sponsored guides, affiliate arrangements or link insertions. If that changes, it will be disclosed prominently rather than buried, because a reader who cannot tell advertising from advice is being misled.
Technical claims are checked against recognised standards and published references, and the origin of quantitative material is disclosed on the Sources page. Where a figure reflects a particular construction type or market convention, we say so rather than presenting it as universal.
Where practice genuinely varies between markets, we describe the variation instead of picking one convention and presenting it as the norm. A guide that assumes North American framing practice is of limited use to a reader pricing an RCC frame in South Asia.
We do not publish invented statistics, unsourced cost benchmarks, fabricated case studies, or claims about the platform's market position. We do not publish keyword-driven pages that exist only to rank, and we do not pad guides with restated material to hit a word count.
We also avoid presenting contested professional judgement as settled fact. Where estimators genuinely disagree — on contingency sizing, for instance — the guide sets out the positions rather than asserting one.
Substantive corrections are published with a dated note on the affected page. We do not silently edit a factual error out of existence, because a reader who acted on the earlier version deserves to know it changed.
Minor fixes — typography, formatting, broken links — are made without annotation. If you find an error of any kind, write to info@constrcalc.com.
Reference material ages. Codes are revised, tax treatments change, and market conventions shift. Guides carry a last-updated date so you can judge currency, and material that has become misleading is revised or withdrawn rather than left standing.
We would rather publish fewer pages that are current than a larger library that is quietly out of date.
Advertising served by Google AdSense is visually distinct from editorial content. Advertisements are not styled to resemble guides, articles or calculator output, and editorial pages are not written to support a specific advertiser's product.
Editorial questions, correction requests and challenges to a published figure go to info@constrcalc.com. A person reads that address and will reply, normally within 48 hours on weekdays. If you are reporting a factual error, including the page, the figure you believe is wrong, and the source you are relying on will help us verify and publish a correction faster.
The primary reader is a working estimator, contractor, quantity surveyor or architect pricing real work. That shapes the register: guides assume familiarity with construction terminology and do not stop to define a bill of quantities or explain what retention is.
It also shapes what gets included. A guide earns its place by containing something a practitioner can act on — a unit conversion trap, a cost category that is routinely forgotten, a reason a standard figure fails in a particular market. General material available in any textbook is omitted in favour of linking to the authoritative source.
ConstrCalc is used across many countries, and content is written accordingly. We avoid assuming imperial units, North American framing practice, or a single permitting regime as the default case.
Where a guide must use an example, it states the market and specification the example assumes. Where a convention differs internationally — day-rate versus hourly labour pricing, retention percentages, tax treatment of materials — the guide describes the variation rather than presenting one country's practice as universal.
Codes and standards are cited, not reproduced. We link to the publishing body — ACI, ICC, the Eurocodes, ABCB, OSHA, BIPM, NIST, RICS — so readers can verify the current text at source rather than relying on our paraphrase of it.
We do not claim that following a guide constitutes code compliance. Guides describe what a requirement generally addresses and why it matters to cost; determining what applies to a specific project remains the reader's responsibility, confirmed with the authority having jurisdiction.
Automated tools may assist with routine production work such as formatting, link checking, or spotting inconsistent terminology. They are not used to generate substantive technical content, and no page is published on the strength of automated output alone.
Every technical claim on this site has been reviewed by a person who is accountable for it being right.
The most useful corrections we receive come from people pricing work in markets we know less well: a retention convention we described too generally, a permit stage that does not exist in a particular jurisdiction, a material unit quoted differently by local suppliers.
That feedback is treated as valuable rather than as criticism, and it is acted on. Where a practitioner's correction changes a published figure, the change is dated and noted on the page so other readers can see what moved and when.
