×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Spacing rules for staggered screws/nails/bolts in timber?

Spacing rules for staggered screws/nails/bolts in timber?

Spacing rules for staggered screws/nails/bolts in timber?

(OP)
Wondering if anyone can point me in the direction of any advice from standards/codes around the world in relation to the spacing requirements (and any other requirements) for staggered fixings in timber.

My own local code in NZ only has typical spacing and edge distance rules for screws/nails and bolts in regular aligned columns/rows subject for loading perpendicular and parallel to the grain. My brief searches have come up with nothing regarding any local rules for staggered fixings layouts.

My intuition tells me and the Eurocode rules below seem to agree that where for a certain direction of loading that if the fixings are not strictly in a row or column that there might be a closer spacing allowed or maybe a higher capacity can be achieved depending on the mode of failure.

The only thing I found so far was in Eurocode which states the following, but wondering how other codes might treat this situation?



Our code does not look at modes of failure like say Eurocode approach does, though its coming in a recent draft.



Thanks.

RE: Spacing rules for staggered screws/nails/bolts in timber?

Here'll all of the mentions on staggered fastenings in the Canadian code.







RE: Spacing rules for staggered screws/nails/bolts in timber?

And the US stuff looking more or less the same...




RE: Spacing rules for staggered screws/nails/bolts in timber?

(OP)
Thanks!

RE: Spacing rules for staggered screws/nails/bolts in timber?

In Eurocode it depends on the type of fasteners. For nails and self-tapping screws you can stagger with distance > diameter and it means you have separate rows.



Your first image is for toothed-plate connectors only.

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! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close