About Tradesman Math
Free, accurate calculators for the trades — no signup, no data collection, no "estimate by vibes."
Every calculator on this site is built from published engineering tables and code requirements (IRC, IBC, manufacturer specs), then checked against known examples. Where a number affects safety — stairs, spans, footings — the tool tells you the code rule and says to verify locally.
The site is deliberately boring: fast pages, honest math, and tools that answer the question you actually asked.