Going up? How much is necessary?
I want to put a storage loft in an area with a 12 foot span.
The studs are 2x4 and exposed. The intuitive thing would be to simply lag 2x6 to each of the 2x4 wall studs that are 16 on center, and cover the thing with plywood.
Using the calculator here http://www.awc.org/calculators/span/calc/timbercalcstyle.asp
It shows that I can do 2x8 at 16" oc for a span of 12' 7". This raises a few questions for me, if someone will indulge:
1. Would it be best to put up one 2x8 at 64 inches out and then use joist hangers on 2x4 or 2x6 lumber for the shorter span (64") or simply put up 2x8 for the full span?
2. Will it be sufficient to lagbolt the 2x8 to the 2x4 wall studs or will I need to add an additional jackstud under each of the 2x8 as well?
3. Would it be better to do this like an outside deck, in that I would put a 2x8 against the wall studs on both sides and span the loft area using joist hangers?
Is there another (better/easier) way I have not thought of yet?