×
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

deck header

deck header

deck header

(OP)
need some reassurance. I have a deck I'd like to build a roof on, making it a porch. Standard construction: 5' wide, 25' long; 2x10 ledger bolted to the foundation, 4x10 header, 22 joists 2x8 x5'. The header sits right on the piers, wihtout posts. Problem: the header is not perfectly plumb, it has a 6 degree tilt outwards. I worry that, because of that angle, the weight vector of the roof, loaded with chicago snow (I figure about 3000 lbs total) will have at least some small vector component OUTWARD; thereby tending the header to roll or tilt more. question is, given these numbers, just how much outward force is being placed on that header, and will 22 joists (including doubled stringers on the ends face-nailed into the header) be enough to hold it in place? And just how much of the total weight of the roof is actually sitting on the header, and how much is dispersed to the wall it's leaning on? (5/12 pitch to the porch roof)

RE: deck header

Your outward component will be small (likely less than 50 lbf).  I would suggest an "L" bracket at each joist to tie the header and joists together to prevent any more roll.  You might even be able to pull the existing roll out with this method.

More of your snow load will be on the drift side (nearest the wall).

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