Authors & Engineering Support

Who builds and supports these tools?

Concrete Calc Pilot combines independently maintained estimation software with engineering advisory support. The site operator publishes calculations, tests and sources. Every calculator has a publicly documented numerical verification example.

Our practical verification workflow

1. Define: state whether a calculation concerns geometric volume, purchase bags, a price scenario or application-specific coverage.
2. Source: document relevant manufacturer data, product limitations, units and user-controlled assumptions.
3. Verify: compare the software with independently computed numerical cases for all seven calculator families, checking rounding and invalid inputs.
4. Publish: show formulas, test examples, limitations and the real responsible operator so visitors can check the arithmetic.
5. Maintain: investigate reported discrepancies, product-data changes and software regressions; seek additional advisory input as relevant.

Most recent documented seven-tool internal QA: October 24, 2026. See each check, input and expected output →

Technical QA versus structural design approval

Our automated tests and reproduced calculations provide evidence of software arithmetic, not an engineer's signature or professional certification of your construction project. Enrique's advisory role is credited accurately, but his public profile is not evidence that he personally signed off each published formula. No active U.S. PE registration or structural design approval is claimed.

Read the methodology, inspect primary sources, or send a correction. We keep advisory relationships and actual per-tool review records distinct.