We are looking at converting attic space into a bedroom there is currently
onversion-1148814-.htm
The principle is correct. With two additional supports, the 2x6s will only span 5 ft which should be sufficient. But you don't say what the distance is that they will run and for any reasonable size room, two separate 2x8s acting as beams aren't going to be sufficient. Someone needs to calculate the loads.
As it exists now, there is nothing supporting the 2x6s at mid-span, correct?
It would seem to me your easiest option is to put one 14 ft beam mid-span. That is provided there is something sufficient to carry that load on both ends. Is there? If not, then two beams like you were talking about could work, assuming they have endpoints that will carry the reduced load, etc. In any case, I doubt two 2x8's will be sufficient.
Here is a beam span calculator. If you use a beam mid-span, to support
15 ft of joists with a 14 ft long beam, you'd need either 4 2x12s or 5 2x10s with Douglas Fir. They have engineered beams that would be smaller, lighter, that's another possibility.trader_4 posted for all of us...
+1 at leastreplying to trader_4, Dalejr850103 wrote: Yes. 2x6 load barring walls
They sure aren't going to be capable of supporting the ends of any 14 ft long beam that;s holding up a 15x14 floor. You'll need solid support there, carried down to the foundation.
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