Editorial policy

Every calculator on MeasuredBuild goes through the same steps before it goes live. This page explains each one.

How a calculator is chosen

We build a calculator only when people search for it and the current results leave room for a clearer tool. Each calculator answers one job, like how much concrete a slab needs.

How the math is checked

• Worked by hand first. We work out each formula by hand for real jobs, then write those answers into automatic tests. The calculator must match every one before it can publish. The site runs more than 100 automatic checks every time the site changes.
• Compared with other calculators. We enter the same jobs into well-known calculators. The answers must agree to the rounding. Where ours differs on purpose, the page says why.
• Tested on every change. The tests run again every time anything on the site changes. If one fails, the change does not publish and the old page stays up.

Where the numbers come from

Every fixed figure, like how much concrete one bag makes or how much it weighs, comes from a named source: a manufacturer’s data sheet, an industry body or the building code. Each source is linked at the bottom of the page with the date we last checked it. If we cannot find a source for a figure, we leave the figure out.

How the words are written

We use AI tools to help draft text and code. A person checks every number, formula and sentence before it is published. We do not state prices, because they change by place and over time.

When something is wrong

Email [email protected] with the page and what looks wrong. We check it against the source, fix the page, and add a dated note to that page’s list of changes.