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Old 03-06-2013, 10:47 AM   #1
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Proper Nail Length for building up beams


Greetings,

DIYer designing and building a small cabin using 2X stick construction.

For various parts of the framing i need to build up beams from two 2X's nailed together.





The 2009 IRC NJE nailing schedule calls out the use of a 3" nail when building up headers out of 2Xs

http://forums.finehomebuilding.com/b...ming-nail-size




Won't a 3" nail poke out of the other side of a 2X if it's used on two 2X's if it was just even a tiny amount underflush??? Do you shoot this at an angle or do people use shorter nails? Why would the IRC schedule call out a 3" nail if it would poke out the other side?

I'd rather figure this out before buying 4000 of these things for my nail gun.

Do you have any advice for me?


Thank you!

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Old 03-06-2013, 10:52 AM   #2
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Proper Nail Length for building up beams


Beam to mean means that it is spanning horizontally. Is this what you mean?

If so and you are putting this on a jack stud or column on either end to support it, you would need a 1/2" sheet of plywood between your 2x's in order to make the width of your beam be 3.5" if you do it this way there is no way a 3" nail will come out the other side.

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Old 03-06-2013, 10:54 AM   #3
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Proper Nail Length for building up beams


Your missing something.
A header is 2, pieces of 2x with a piece of 1/2 plywood or OSB in the middle.
If you left that out they would not be flush on both side for the sheetrock.
1-1/2 + 1-1/2+ 1/2 =3-1/2
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Old 03-06-2013, 10:57 AM   #4
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Proper Nail Length for building up beams


Sorry.. should have been clear - I realize I need a sheet of 1/2" plywood to make up the header - but what about corner joints or trimmer studs where there are simply two 2X4's together.

I also have a couple of beams that are structural and are only two 2X10's without the plywood.

Shorter nails here????
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Old 03-06-2013, 11:05 AM   #5
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Proper Nail Length for building up beams


Quote:
Originally Posted by Davef_dci View Post
Sorry.. should have been clear - I realize I need a sheet of 1/2" plywood to make up the header - but what about corner joints or trimmer studs where there are simply two 2X4's together.

I also have a couple of beams that are structural and are only two 2X10's without the plywood.

Shorter nails here????
What are the 2x10's being supported by?
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Old 03-06-2013, 11:07 AM   #6
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Proper Nail Length for building up beams


Nope still use 3".
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Old 03-06-2013, 12:52 PM   #7
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Proper Nail Length for building up beams


Angle them a bit so they don't go out the back side-----

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