Do i need double studs?

[mark2457]

Hi All

When inspector was round doing pre-pour, he mentioned he'll be looking at nailing patterns on sheathing and expects 2 columns interleaved 3-inch apart, as shown here: http://www.all-concrete-cement.com/shear-wall.html

What i'm not clear about is would the double column just be at the ends of the WALL, or the ends of each sheet, (so four columns -- 2 per sheet -- where sheets join). If the latter, I'd have to use double studs at each sheet joint wouldn't I?

Thanks

Mark

 

[rayra]

I'd say no. The edges of the sheathing are supposed to meet over the center of a single stud. The two columns of nails would be angled in to the single stud.

That's kinda the whole point of wall studs spaced on 24" or 16" centers, so the sheathing seams overlap a stud.

 

[readhead]

The double studs are for the hold down. I have seen jurisdictions turn down shear nailing on a single stud. I framed a house once where the building department required a 4x at every sheet joint. The easiest way to clarify your question is to ask the inspector. Don't be afraid to ask questions. Most inspectors are more than willing to help.

 

[BillK]

Don't be afraid to ask questions. Most inspectors are more than willing to help.

I was just going to say the same thing. Ask the inspector, he is the one that you are going to have to please When I built my garage years ago I found the inspectors very easy to work with and more than willing to help with questions like this.

 

[mark2457]

thanks guys. Will call inspector

 

[mark2457]

For the field nails (single row) would I switch to 16d? I know I need to use 2 x 8d for double rows

 

[bczygan]

Determine if he wants that detail everywhere or just on the narrow width walls next to the overhead door, as is usual.

Looking at shear conditions can be important. We once built an open plan house where almost the entire 2 story volume was open and unobstructed and all exterior walls were full of glass and openings. We had to modify a centrally located interior wall into a two story shear wall to resist lateral forces.

Bill

 

[mark2457]

Determine if he wants that detail everywhere or just on the narrow width walls next to the overhead door, as is usual.

Looking at shear conditions can be important. We once built an open plan house where almost the entire 2 story volume was open and unobstructed and all exterior walls were full of glass and openings. We had to modify a centrally located interior wall into a two story shear wall to resist lateral forces.

Bill

Thanks Bill!