Our experts
The tradespeople who review our formulas and keep our estimates trustworthy.
Accurate estimates require real-world experience, not just math. Our calculators and guides are checked against industry standards and reviewed by experienced tradespeople who catch the details — waste factors, regional practices, and the assumptions that matter on a real job site.
How review works
- Each calculator's formula and default values are checked against industry standards.
- Content is reviewed for practical accuracy, not just technical correctness.
- Tools are re-checked when materials, codes, or best practices change.
Learn more about our process on the methodology page.