Nailing Schedule for 3) 2x12 beam?

[airman89]

I can’t seem to find a nailing schedule for laminating a triple 2x12 header in codes. This is for a truss connection spanning 8’.

Does anyone know an acceptable pattern and what nails to use? 30d? Or 16d from both sides? I’ve seen people say diagonal 6” apart others say 3/4 rows with x spacing, etc.

Thanks!

 

[Rusty Wrench]

My mezzanine is 2x12 doubled every other. It is nailed 16" o.c. w 3 vertical 16d. For 3, I'd think from both sides would adequate. This carpenter didn't use adhesive, just nails.

 

[mike93lx]

The awc deck guide should have it

 

[Shiftless]

Is this project being inspected? If so, you should consider inquiring with their office. Whatever you learn by asking us won’t mean much to some grouchy guy that doesn’t like your pattern.
I had to laminate two 2x10s and the inspector gave me a choice of 16d nails or structural rated screws. The ceiling joist bay gave me only about 13 inches to swing a hammer so I went with Simpson structural screws. The heads bear ID marking. Don’t use deck screws. Zig zag pattern. It passed.

 

[pcmeiners]

Lastly if you go Simpson screw do not get them from the box store, they charge double the price of the already ample price, get them on the Internet.


Screw pattern.....

https://mitek.ca/wp-content/uploads/uploadedFiles/_RedesignSite/Content/documents/products/Builder_Products/Fasteners/Installation_Instruction/WS%20Wood%20Screw%20Installation%20for%20LVL,%20LSL,%20or%20PSL%20Members.pdf