×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Wood Column size and prescriptive Code

Wood Column size and prescriptive Code

Wood Column size and prescriptive Code

(OP)
can anybody point me in the right direction to determine , by prescriptive code, the correct sized column for a deck. I am thinking it will have an unbraced length of approx. 10ft. MY initial reaction is to go with a 6x6, but I want to confirm with NYS residential code rather than blasting out calculations for it.

Thanks all

RE: Wood Column size and prescriptive Code

You might see if NYC will accept AWC's DCA 6 - Prescriptive Residential Deck Construction Guide http://www.awc.org/codes/dcaindex.php (Note, I don't know if the guide includes 10ft high posts)

RE: Wood Column size and prescriptive Code

(OP)
Sorry, I'm in NY State, not the City. I looked in there and I didn't see anything about the unbraced length.

RE: Wood Column size and prescriptive Code

Now you made me look in the AWC publication. Try the post requirements on page 7 or look at figure 22. Maximum post height is 14' with a kicker/brace 2' from the top of post.

RE: Wood Column size and prescriptive Code

NDS requires that the slenderness ratio not exceed 50. I looked quick and I don't see anything in the IBC Wood section. Depending on your end conditions, anything smaller than a 6x6 may not be adequate.

RE: Wood Column size and prescriptive Code

Western Wood Products publication Tech Guide 9 www.wwpa.org/techguide has tables for axial load capacity of solid wood columns of various lengths for western wood lumbers. The one I have is based on NDS 2001 and 1998 WWPA grades, but I don't think there are significant changes with current NDS regarding solid wood columns. Appears the wood columns will need to be treated for your application.

RE: Wood Column size and prescriptive Code

(OP)
NDS.. ahhhh Totally slipped to look there. I was thinking that it must have been outlined in the Residential code that I was blinded.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources