How far can I span a 2×10 header?

How far can I span a 2×10 header? When supporting joists that span 12 feet with no overhang beyond the beam, a double ply beam can span in feet a value equal to its depth in inches. A double 2×12 beam can span 12 feet; a (2) 2×10 can span 10 feet and so on. … Continue reading How far can I span a 2×10 header?