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RE: section properties for 2x t&g heavy timber decking

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My Timber manual (5th) says to compute it from actual deck used or get spec from manufacturer.

In Table 6.1 it uses S = depth squared /6            I = depth cubed /12   it figures based on 12” width


Joe Venuti,  P.E.

Joven Engineering

La QuintaCA


From: Joseph R. Grill [mailto:vveng(--nospam--at)]
Sent: Sunday, August 15, 2010 2:34 PM
To: seaint(--nospam--at)
Subject: section properties for 2x t&g heavy timber decking


I thought this would be an easy search, but I can’t find section properties for t&g heavy timber decking.  I have formulas from AITC and load tables from AITC with some more related info from AITC 112 .  From the load span tables I am sure I will be O.K. with bending, but I want to check deflection with the formulas but I can’t find tables of section properties.  I could calculate from the diagrams in AITC 112, but just don’t want to this Sunday afternoon. Does anyone have a table of T&G decking section properties based on AITC 112?  I don’t know what the mfg/supplier will be at this time, but I can spec to AITC documents.





Joseph R. Grill, PE

Verde Valley Engineering, PLLC

email: VVEng(--nospam--at)