How far can 2×12 span?

How far can 2×12 span? A double 2×12 beam can span 12 feet; a (2) 2×10 can span 10 feet and so on. In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. What size lumber can span 20 feet? In that case, you need something … Continue reading How far can 2×12 span?