Question about framing wall section.

[NM_Shooter]

I am using 2X4 for wall framing, and wondered about the distribution of the load on the floor joist and rim joist.  With a 2X4, you only get 2" of load bearing on the floor joists, and 1.5" bearing on the rim joist.  Is the 2" sufficient to carry the load of the wall and roof?

The floor joists will be cantelevered a bit, with the beams set in ~1' from the ends.

Thanks,

Frank

[PEG688]

Yes literally hundreds of thousands of homes / buildings are built that way. 

[n74tg]

If the bottom of each joist and the rimjoist both sit on the mudsill, then your wall base plate is also supported by the end of each joist.  You didn't draw in a mudsill, and your rimjoist shows to be taller than your floor joists.  If that is the case in your house please explain.

[John_C]

I believe his joists are cantilevered 1 foot beyond the beam of a pier & beam foundation.

[NM_Shooter]

If the bottom of each joist and the rimjoist both sit on the mudsill, then your wall base plate is also supported by the end of each joist.  You didn't draw in a mudsill, and your rimjoist shows to be taller than your floor joists.  If that is the case in your house please explain.

Nope... no mudsill.  Beams set in about 1' from rimjoist.  2X8X16 joists, probably 2X10 rimjoist.  Hot Springs AR, huh? I miss Arkansas.  Most of it anyway...you can keep the humidity and the 'skeeters.  I lived in Mountain Home for 10 years or so.

Thanks PEG.  Hundreds of thousands!  I should be okay

-f-

[glenn kangiser]

I like to think of how much wood is bearing the weight also keeping in mind that fiber stress of the wood is generally about 900 to 1000 psi of wood max allowable -- generally around the 900 I think but I like to round it to 1000 for my rule of thumb calculations.

Of course PEG is right and I don't even question him, but I just like to have an Idea of what is pushing or sitting where to help me understand what I'm doing better. 

Example - it will help you to understand why a let in ledger is better than one supported by 2 1/2" lag screws.  Since the screws are round and threaded you are probably getting about 3/8 inch effective support per screw so lets say through an inch and a half board you are getting about 1/2 square inch support - round figures or around 500 lbs per bolt.  The let in ledger gets over 2 full inches support at each stud -- unless technical issues change that. 

[PEG688]

There can be odd situations where "point loads" might require additional blocking directly under the post or "point" of bearing , but generally in John's little house plans IF there is a point load he directs / adds to the plan for that situation .

So "in General " what your showing is common , but as I have been known to say "it depends" on specifics of every job.   

[glenn kangiser]

Always gotta have those Depends, don't ya, PEG

[PEG688]

Always gotta have those Depends, don't ya, PEG

Never leave home without um  ah that didn't sound right , 

Lets see , ah ,,,,,,,,,,ah ,,,,,, yes, I mean NNNNNNNNNooooooo ! or it depends 

[glenn kangiser]

[PEG688]

 And to think John wanted to limit the forums number of smiles    They are darned near indespencible IMO 

[glenn kangiser]

Since we can't really see each others reactions - they do make it a friendlier place.