Log Span Tables for Floor Joists, Beams, and Roof Support Systems: B. Allan Mackie, Norman A. Read, and Thomas M. Hahney: 9780963690203: Textbooks: Amazon Canada
Changing the Specification - What is "Or Equal"? :: Weyerhaeuser
Construction codes of Ontario
Column 3 of the Ontario Building Code built up wood beam span table A-3 has me confused. (Canada) : r/Carpentry