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powertoolguy 10-10-2013 12:14 PM

Sheathing at intersecting walls
 
Hey yall, I'm going to build a storage shed this fall and I have a question about sheathing. I know how to layout my individual walls on 16" centers to make the sheathing break on a stud. What I have a question about is the corner formed by two intersecting walls. If each wall is framed 16oc for the sheathing, what do you do about the 3.5" difference at the corner where one wall overlaps the other? Do you just cut some off the length of the sheathing to make it break on a stud? (Would end being like 11-3/4" being cut off)

http://img266.imageshack.us/img266/9894/9om6.png

cortell 10-10-2013 01:12 PM

I think you're going about this the wrong way. You're assuming the goal should be to have walls where every stud is 16" OC . That's not a good goal. Instead, you should dimension your shed to accommodate full sheets.

If that doesn't make sense, think of it this way...you don't get in trouble for having studs less than 16" apart. In fact, if you're going to efficiently use sheathing (whole sheets), it's guaranteed you'll end up with some studs that are less than 16" from the corner. So, build your shed to have dimensions 8x12, e.g., instead of trying to combine four wall units, two which are 8' and two which are 12'.

Make sense?

Pittsville 10-10-2013 02:27 PM

Quote:

Originally Posted by cortell
I think you're going about this the wrong way. You're assuming the goal should be to have walls where every stud is 16" OC . That's not a good goal. Instead, you should dimension your shed to accommodate full sheets.

If that doesn't make sense, think of it this way...you don't get in trouble for having studs less than 16" apart. In fact, if you're going to efficiently use sheathing (whole sheets), it's guaranteed you'll end up with some studs that are less than 16" from the corner. So, build your shed to have dimensions 8x12, e.g., instead of trying to combine four wall units, two which are 8' and two which are 12'.

Make sense?

My shed is going to be sized 8x16, so it is dimensioned to take advantage of the sheet size. No matter what size it is, there is always going to be this 3.5" difference from the walls overlapping. (5.5" if 2x6 walls) I realize that not every stud is going to be 16"oc.

Are you suggesting that I modify the framing on the wall being overlapped to compensate for the 3.5"? In other words, instead of starting my first stud at 15-1/4", start it at 11-3/4" and then mark every 16" from that point? Or am I not understanding your point?

cortell 10-10-2013 02:43 PM

Quote:

Originally Posted by Pittsville (Post 1251870)
My shed is going to be sized 8x16, so it is dimensioned to take advantage of the sheet size. No matter what size it is, there is always going to be this 3.5" difference from the walls overlapping. (5.5" if 2x6 walls) I realize that not every stud is going to be 16"oc.

Are you suggesting that I modify the framing on the wall being overlapped to compensate for the 3.5"? In other words, instead of starting my first stud at 15-1/4", start it at 11-3/4" and then mark every 16" from that point? Or am I not understanding your point?

Forget about the 3.5". It should never come into your mind. Draw a rectangle depicting 8x16. For grins, go ahead and draw your sheathing on the outside of the rectangle. See how it's a perfect fit? No gaps to be found. Great. Now, decide on where each wall unit starts and ends. Then for each wall, start laying out the studs 16"OC (with the standard 3/4" adjustment). Where does your last stud land? Here's the answer: who cares? It doesn't matter.

Your problem is that you're focusing on first laying out the studs then combining the walls. Like I said, that's going about it the wrong way.

Fairview 10-10-2013 02:56 PM

It looks to me you have chosen to have the interior dimension 16 ft. Choose the exterior for 16 ft. You have discovered you can't have both interior and exterior 16 ft. so choose and proceed. I choose exterior nearly every time.:laughing:

Pittsville 10-10-2013 05:04 PM

Quote:

Originally Posted by Fairview
It looks to me you have chosen to have the interior dimension 16 ft. Choose the exterior for 16 ft. You have discovered you can't have both interior and exterior 16 ft. so choose and proceed. I choose exterior nearly every time.:laughing:

The opposite actually. My dimensions are the outside of the shed. So two walls will measure 192" and two will measure 89".

joecaption 10-10-2013 06:01 PM

Nope.
8' X12" = 96 not 89"
89" devided by 4' = two full sheets.

Pittsville 10-10-2013 06:08 PM

Quote:

Originally Posted by joecaption
Nope.
8' X12" = 96 not 89"
89" devided by 4' = two full sheets.

8' x 12" = 96"
96" - 7" overlap from two walls = 89"

These two walls fit BETWEEN the longer 192" walls.

firehawkmph 10-10-2013 07:56 PM

ptg,
In your situation, I layout the first stud in the inner walls 3.5" short to allow for the thickness of the longer wall, like you mentioned doing in your second post. Then your plywood will break on a stud and overlap the wall intersection, tying the corner together nicely.
Mike Hawkins:)

powertoolguy 10-10-2013 08:08 PM

Quote:

Originally Posted by firehawkmph (Post 1251998)
ptg,
In your situation, I layout the first stud in the inner walls 3.5" short to allow for the thickness of the longer wall, like you mentioned doing in your second post. Then your plywood will break on a stud and overlap the wall intersection, tying the corner together nicely.
Mike Hawkins:)

Yeah, this seems like the best approach. Thanks! And thanks to everyone else who replied!

On a side note, sorry for the confusion with names during my replies. I was replying on my neighbors phone and forgot that he was signed in!! lol, sorry Pitts!! Told you I don't do this technology stuff very well!

Pittsville 10-10-2013 09:02 PM

Quote:

Originally Posted by powertoolguy

Yeah, this seems like the best approach. Thanks! And thanks to everyone else who replied!

On a side note, sorry for the confusion with names during my replies. I was replying on my neighbors phone and forgot that he was signed in!! lol, sorry Pitts!! Told you I don't do this technology stuff very well!

Ha! No problem bud. Was wondering what you were typing today. Glad you got your question answered. :)

CheapCharlie 10-11-2013 12:04 PM

When I framed my shop (10' walls), I staggered the sheets by 4'. The bottom sheet was flush to the outside edge. The middle sheet I didn't put on the ends (started 4' in). Once the walls were standing I put the middle sheet on and overlapped the other wall the 5.5 inches. I just cut small strips to fill in the bottom of the exposed stud.

Hope this makes sense.

GBrackins 10-11-2013 01:33 PM

1 Attachment(s)
this is normal in my area, for what's its worth

CheapCharlie 10-11-2013 02:29 PM

Quote:

Originally Posted by GBrackins (Post 1252254)
this is normal in my area, for what's its worth

Depends what kind of sheathing you are using. If it's OSB the sheets should be laid horizontally for structural support.

GBrackins 10-11-2013 02:31 PM

we typically run them vertical with blocked edges since we are in a hurricane prone region. Can run 'em horizontal as well, but our panels have to be blocked.


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