Pole barn header fasteners in Michigan

[aybuilder]

Hi all,
I've been searching a lot and I'm struggling to find any answers. It's also tough to get in touch with the building inspector here.

I live in west michigan and I'm putting an addition on my pole barn. I currently have the headers through bolted with 2 1/2" bolts per post. I was hoping to use the 6" 5/16 GRK structural screws to install the new headers into the posts. I'm having a hard time finding out how many to use for each post, or if this will even pass code. I believe ring shank nails would have passed code, but I really prefer screws to nails and have heard the GRK structural screws are stronger than the nails/easier to install.

I appreciate any insights!

 

[dodgeramsst2003]

I'm not a builder so take this for what it's worth, but I did have a pole barn built last year in S.E. Michigan. My header is attached with 2 or 3 GRK screws to the post ( I would have to confirm how many when I get home), and there is an additional 2 ft 2x4 block under it that has 3 GRK screws in it.

 

[aybuilder]

I'm not a builder so take this for what it's worth, but I did have a pole barn built last year in S.E. Michigan. My header is attached with 2 or 3 GRK screws to the post ( I would have to confirm how many when I get home), and there is an additional 2 ft 2x4 block under it that has 3 GRK screws in it.

Thank you for the response! I'd love to see a photo of how they are attached/what the 2x4 block looks like.

 

[gleman]

You really need to get in touch with your AHJ. My county was really easy to work with on my pole barn. You might have to wait a day for an answer but you'll get the correct answer instead of speculation.

 

[petebob]

There aren't any prescriptive codes for pole barns, so my county required an engineer stamped design. My engineer spec'd 2x through bolts (i think 5/8"- its been a while) through the pole and truss carriers.