How far can a double 2×6, 2×8, 2×10, and 2×12 beam span? It totally depends upon the types of lumber and the grade of the lumber. By the way, we should use construction-grade lumber like Douglas fir-larch and southern yellow pine for the construction as per general guidelines.
There are many species of wood that can used in the construction. But southern yellow pine is the strongest wood species that can span more than other wood species. Construction lumber is divided into three grades like.
- Grade-1
- Grade-2
- Grade-3
How far can a double 2×6, 2×8, 2×10, and 2×12 beam span
A double beam is made up of two equal size beams nailed together. It can span according to its depth. If the depth of the beam is 12 inches then it can span up to 12 feet. Here we can say it will span equal to its depth but the depth will be in inches and the span will be in feet.
How far can a double 2×6 beam span
As per the International residential code, 2 grade double 2×6 beam can span up to 6 feet without support. Here the total load is 50 psf in which the live load is 40 psf and the dead load is 10 psf.
How far can a double 2×8 beam span
As per the International residential code, 2 grade double 2×8 beam can span up to 8 feet without support. Here the total load is 50 psf in which the live load is 40 psf and the dead load is 10 psf.
How far can a double 2×10 beam span
As per the International residential code, 2 grade double 2×10 beam can span up to 10 feet without support. Here the total load is 50 psf. In which the live load is 40 psf and the dead load is 10 psf.
How far can a double 2×12 beam span
As per the International residential code, 2 grade double 2×12 beam can span up to 12 feet without support. Here the total load is 50 psf. In which the live load is 40 psf and the dead load is 10 psf.
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