2x6 Stronger Than Laminated 1x6

In this situation i would use double 2x joist hangers at each end of the joists.
2x6 stronger than laminated 1x6. Then i discovered laminated strand lumber lsl. 2x4 and 2x6 boards lose 1 2 inch in thickness and 1 2 inch in width before leaving the mill. Stairs are another story as most people slide their feet onto a step creating a wear pattern. I am not an engineer just my thoughts.
Laminated beams are stronger than solid for some strange reason. If it is imperative that you maintain the 3 5 8 width use a 1 4 plywood filler between the boards. In addition i would add another 2x6 under the existing 2x6 and use adhesive to sister onto the 2x12 but also under the existing 2x6. A 4x6 in many cases is a large chunk of today s trees.
Laminated is possibly stronger too. One way that i have seen an engineer fix a cut floor truss was to gusset on both sides with 1 2 plywood. Finger jointed studs tended to be straighter than standard spruce pine fir spf 2x4s but they weren t perfect. Edited 8 14 2005 6 42 pm et by wyatt.
I work in a small lumber mill and would never use a 4x6 on a long span because the knots. By sistering up the 2 oc 2x6 with 2x6 s i would think the the strength of the floor would change to 2x6 1 oc. With younger trees the 2 ea 2x6 s are much stronger than a 4x6. That s what makes the 4x6 stronger than six 1x6 s.
You will need to shim under the double tall 2x6 as it would nominally be 1 4 less than the 2x12. If you look at the grain the 2x6 s are almost always 1 4 sawed. Clients were always wary believing the lumber was cheap and probably not as strong. I d go with 5 4 deck with 2x6.
Jphi1618 apr 21 16 at 19 51. Couldn t find 1 for 2x s but 5 4 round nose decking was a buck cheaper than a 2x. So will a pack of six 1x6 s or a stack of two 2x6 s. Howver you may notice that a 500 sheet pack of copy paper in its package has some resistance to bowing out that the unwrapped stack does not.
Unless op is planning on thousands of people walking on his deck every day i think 5 4 will work just fine and last at least 30 years. Generally speaking however if you load three 2x6 s equally and they are standing side by side sharing the load the three 2x6 s are probably going to be stronger than the 6x6 of the same specie. That means a 2x10 is actually 1 1 2 inch in thickness by 9 1 4 inches. The larger 2x boards 2x8 2x10 etc lose 3 4 inch in width.
The first engineered 2x4 stud i tried was a finger jointed product. Actually two 2x6 s are stronger than one 4x6 if they are screwed or lagged together.