Nail end withdraw 2

[WARose]

As far as I know, the NDS does not permit any withdraw value for a nail driven into the end of a member, parallel to the grain. (I'm always a couple of codes behind when it comes to wood, so I may be wrong.) But my question is: do they have any exception for a temporary situation in (say) freshly milled wood (or a particular grade)? (My understanding is that this is in the code because wood can split/crack longitudinally down the line.) Thanks.

 

[dauwerda]

I don't believe that the NDS provides an exception, however it may not be applicable if its for a temporary situation. Here is a good paper that discusses many of the past tests done for end grain withdrawal:

https://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr151.pdf

 

[WARose]

Thanks dauwerda.

 

[dik]

ditto...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

 

[dauwerda]

No problem.

 

[Ron247]

The code does not allow it but they do have some strength. I remember when I was a carpenter years ago and they had just got to using 16d ring-shanked nails. We drove one all but 1" into the end of a 2x4 and no one could pull it out.