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RE: Timber connections

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The National Design Standard [NDS] by the AF&PA [ which is the Standard
referenced in IBC Section 2306 and UBC Section 2316] provides tables of
design values based on standard fastener penetrations.  Using the analysis
rules of Sections 11.2 and 11.3 of the 1997 or 2001 editions of the NDS, you
can calculate design values for other fastener penetrations.  

Nels Roselund, SE
South San Gabriel, CA

From: Candi Anderson [mailto:canderson(--nospam--at)] 
Sent: Wednesday, March 30, 2005 7:41 AM
To: seaint(--nospam--at)
Subject: Timber connections

Is there a rule of thumb on depth of penetration for fastening decking to
stringers?  I’m using 3x8 planking supported on 4x12’s.  Do I just need to
check the withdrawal value?  
And, what if a member is only in compression?  How does one go about
determining the amt of penetration necessary to secure the connection?

Thanks for any assistance.


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