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Old 05-17-2019, 09:44 AM   #1
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Sistering studs - which nails?


I'll be sistering 2x4 studs (original studs have a bit of termite damage). What size and length nails should I be using to toe nail the new studs to the top and bottom plates (plates are also 2x4, with bottom plate being pressure treated). I'll be using a hammer (no nailer, and probably not worth investing in a nailer for the 6-8 studs I'll have to sister), if that makes a difference.

Since I'll be sistering and will only have access to drive nails from one side, are 2 nails each at the top and bottom sufficient? Should I use the same nails to attach the new stud to the damaged stud (will find sturdy spots on the damaged stud)?
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Old 05-17-2019, 10:06 AM   #2
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Re: Sistering studs - which nails?


If you have access to the entire stud from top to bottom, why sister instead of just replacing? It's not clear what kind of access you have.
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Old 05-17-2019, 10:21 AM   #3
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Re: Sistering studs - which nails?


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Originally Posted by huesmann View Post
If you have access to the entire stud from top to bottom, why sister instead of just replacing? It's not clear what kind of access you have.
Good question. A couple of reasons.

1. I assume the sheathing is nailed into the studs. So if I remove the damaged studs, how would I secure the sheathing to the new studs?

2. In a couple of spots, the bottom plate (sil plate) has been damaged. So rather than remove a damaged stud and replace with a new stud that is then nailed to a damaged bottom plate, I figure I'll cut out a section of bottom plate adjacent to the damaged stud. Then replace that with a section of new bottom plate and secure the new stud to that (new stud also gets attached/sistered to damaged stud).

Access is OK. No fire breaks and the entire drywall wall has been removed. Only thing in the way is baseboard heating element (which only restricts access to the bottom plate). I'll post up a pic later.
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Old 05-17-2019, 11:02 AM   #4
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Re: Sistering studs - which nails?


3" common nails but the treated lumber should get galvanized, you could get away with 3" deck screws and you would us the same to attach to the old stud in 3 or 4 places.
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Old 05-17-2019, 12:49 PM   #5
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Re: Sistering studs - which nails?


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3" common nails but the treated lumber should get galvanized, you could get away with 3" deck screws and you would us the same to attach to the old stud in 3 or 4 places.
OK, I'll get 3" long common nails, and the same, but galvanized for the ones going into the treated bottom plate.

Any issues with using galvanized nails to toe nail into the top plate and to attach new stud to old stud? Asking because it would simplify the process to buy and use one kind of nail.

As for diameter, 8d?
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Old 05-17-2019, 01:04 PM   #6
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Re: Sistering studs - which nails?


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OK, I'll get 3" long common nails, and the same, but galvanized for the ones going into the treated bottom plate.

Any issues with using galvanized nails to toe nail into the top plate and to attach new stud to old stud? Asking because it would simplify the process to buy and use one kind of nail.

As for diameter, 8d?

I don't know 8d, in Canada a common nail is a standard size with a head.


No problem using galvanized for all but you may find them to bend easier when you hammer them.

And you are correct in saving what you can for the sheeting nailing if you have lost lots of the old you add a 2x2 to the side of the stud so you can screw to the sheeting from the inside.
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Old 05-17-2019, 04:56 PM   #7
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Re: Sistering studs - which nails?


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I don't know 8d, in Canada a common nail is a standard size with a head
You know better than that. Common is the diameter and length is penny (d). For sistering one should use 16d gunners, 10d commons or 16d sinkers.

https://www.constructioncanada.net/f...-construction/

https://abag.ca.gov/bayarea/eqmaps/fixit/ch3/sld057.htm[

Last edited by Anti-wingnut; 05-17-2019 at 05:03 PM.
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Old 05-17-2019, 05:10 PM   #8
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Re: Sistering studs - which nails?


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Originally Posted by Anti-wingnut View Post
You know better than that. Common is the diameter and length is penny (d). For sistering one should use 16d gunners, 10d commons or 16d sinkers.

https://www.constructioncanada.net/f...-construction/

https://abag.ca.gov/bayarea/eqmaps/fixit/ch3/sld057.htm[

Like I said in Canada we order common nails for construction. I have never had to think about diameter and can't imagine why there would be two diameter nails with heads for construction.
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Old 05-17-2019, 05:43 PM   #9
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Re: Sistering studs - which nails?


https://www.jlconline.com/how-to/int...cooler-nails_o
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Old 05-17-2019, 05:46 PM   #10
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Re: Sistering studs - which nails?


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Originally Posted by Anti-wingnut View Post
If you were going to nail a house together with nails and a hammer what nail would you use for most all framing and then most all sheeting?
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Old 05-17-2019, 05:59 PM   #11
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Re: Sistering studs - which nails?


Me? 16d sinkers for the framing and the siding with 8d sinkers. If I get a gun, I’d use 12d gunners (3 1/4x.131 vinyl coated ) and sheath with 8 vinyls or 8 ss ring gin nails.

If the inspector was a PITA, I’d go shopping for a 16d common nail gun.
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Old 05-17-2019, 06:00 PM   #12
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Re: Sistering studs - which nails?


Have you ever built a house without a nail gun? I have.
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Old 05-17-2019, 06:26 PM   #13
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Re: Sistering studs - which nails?


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Have you ever built a house without a nail gun? I have.
Yes I have and in Canada we would order a box of 3" common and 2 1/2" common and I bet you would have the same nails at your house. Because they are the nails commonly used when you build a house. I just don't understand still using a system that came from before wire nails were invented.
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Old 05-17-2019, 06:30 PM   #14
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Re: Sistering studs - which nails?


Most gun nails don’t come as commons.
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Old 05-17-2019, 06:32 PM   #15
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Re: Sistering studs - which nails?


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Most gun nails donít come as commons.
The question was about hand nails.
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