How much force can a 2x6 take?
Correspondingly, what is stronger 4x6 or 2 2x6?
A 4x6 joist is theoretically stronger than a doubled 2x6 joist because it's 1/2" thicker, but the actual strength depends upon the knots and other inherent weaknesses of any particular piece of lumber (#2 lumber can have some nasty spike knots or large not-so-tight round knots or wane).
Also Know, are two 2x6 stronger than a 2x8? In bending, a joist composed of two 2x6's (true dimension 1.5 inches x 5.5 inches) are slightly stronger than a single 2x8 true dimensions 1.5 inches by 7.25 inches.
Additionally, how far can you span a 2x6 without support?
In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2x8 up to 12 feet; 2x10 to 15 feet and 2x12 to 18 feet.
How far can a 2x6 span flat?
Max. Live Load 20 lbs/ft2 (956 N/m2)
|Maximum Span (ft - in)|
|Nominal Size (inches)||Rafter Spacing, Center to Center (inches)||Lumber Grade|
|2 x 6||12||16' - 4''|
|16||14' - 11''|