Calculator reviewer — construction and trades
D. Fenwick reviews the construction and trades calculators, focusing on whether material estimates state their waste assumptions and whether the geometry matches how the job is actually measured on site. An estimate that is arithmetically correct but assumes an unstated allowance is treated as a review failure.
What review means here
A reviewer is not the author. Before a calculator is published, the reviewer independently recomputes its worked test values, checks that the formula implemented matches the definition the page claims for it, and confirms the page is explicit about what it does not account for. Where a value is not definitional, the reviewer checks that a source is cited rather than assumed — and if one cannot be found, the calculator is dropped rather than guessed.
Calculators reviewed
D. Fenwick has reviewed 22 published calculators:
- Construction — 22