What nails for a subfloor? - Router Forums
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post #1 of 29 (permalink) Old 07-19-2012, 07:47 AM Thread Starter
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Default What nails for a subfloor?

I'm soon going to be making the subfloor for my cabin to be (hurray!) I'm having a hard time finding nails for my air nailer - I've found some 2 3/8" straight shank galvanized nails, should these be sufficient? By code, the nails only need to be 50mm long, but the straight shank is throwing me off. I'm sure they'll be fine, but I was wondering what you guys thought.
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post #2 of 29 (permalink) Old 07-19-2012, 08:33 AM
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When my dad had his last house built he insisted on the sub-floor being "glued and screwed". Since this is a cabin nails will do. A ring shank nail would be my preference. Less chance of them working their way out.

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post #3 of 29 (permalink) Old 07-19-2012, 10:52 AM
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Exactly what Patrick said. Galvanized ring nails hold pretty well though.
Do not use straight shank nails for flooring, unless you like the sound of a squeaky floor...

Speaking of HG nails, I had to take a small exterior staircase apart a couple of days ago. It was all PT lumber, only about three years old. No problem with it, just needs to be changed because of the deck reno. Anyway, the HD 3 1/4" casing nails that held the treads were almost impossible to get back out. One of them took two of us to break the bond with the wood.
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post #4 of 29 (permalink) Old 07-19-2012, 11:24 AM
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I watched a house go up in the next subdivision. They put glue (Liquid Nails?) on the floor joists, drop the plywood in place and nail it in place. I wish my house had the subflooring glued as we have a bunch of squeeks. If I was doing the job, I would glue it and fasten with screws. Nails will pull loose over time.
When I worked for an industrial supply house, I recall seeing an article in a trade magazine about a system that ran screws through a "magazine" like nails. You didn't have to bend over but stand up to drive the screws. Can't recall the company.

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Last edited by Knothead47; 07-19-2012 at 11:26 AM. Reason: add comment
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post #5 of 29 (permalink) Old 07-19-2012, 11:52 AM
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John; they pretty much all offer that now. Look for "screw guns" if you're shopping.
Auto-Feed Scew Guns | ToolBarn.com
Some have the long extension, some don't.
The short version is aimed at drywallers, I think(?). If you're doing a ceiling you need one hand to push up, the other for the gun, so a long reach isn't necessary.
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post #6 of 29 (permalink) Old 07-19-2012, 01:50 PM
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Hi Rob

The 2 3/8" nails will do the job just fine,put them on 6" centers you can use screws but it's a over kill thing the norm,it's just a small cabin ,,right most of the nails now days are ring shank type,made for that type of job

as a side note,the nail-er are fun to use,bang,bang,bang,bang,bang, take that, I recall the 1st time I used mine I must have used 1/2 big Box of 3 1/4" long nails,it was so neat to drive in a 3" nail with just a shot of air..

==



Quote:
Originally Posted by bobbotron View Post
I'm soon going to be making the subfloor for my cabin to be (hurray!) I'm having a hard time finding nails for my air nailer - I've found some 2 3/8" straight shank galvanized nails, should these be sufficient? By code, the nails only need to be 50mm long, but the straight shank is throwing me off. I'm sure they'll be fine, but I was wondering what you guys thought.



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post #7 of 29 (permalink) Old 07-19-2012, 02:15 PM Thread Starter
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Thanks for all the responses guys. I went to my local fastener store this morning, who usually has EVERY type of fastener known to man. They only had straight shank 28 degree galv. nails - I picked up a box since I wasn't leaving empty handed and I had to run off to work. We could do screws since it's not a big area, but I'm thinking the nails will do.

I think we'll put down glue under the plywood, can't decide on what we'll do for fasteners yet. Ring shanks are hard to fine around here, and I'm taking time off to do this next week, so it's gotta get done then.. :P

Dan - I had a similar experience, trying to take a nailer 2x4 out of my shed when I put in a window. Just two nails, one on either end, it was ridiculous how tenacious it was.
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post #8 of 29 (permalink) Old 07-19-2012, 03:05 PM
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My framing nailer is a Hitachi NR83A. Think that is comparable to yours. (Don't remember what your's is.)

For sub-floors I use something comparable to Senco M002041 - Ring Shank Full Rounded Head Nails, 8d, 2 3/8 x .113 (80mm x 2.9mm) Bright Basic... and I put down Liquid Nails Construction Adhesive on the jousts.

That gun nail will fit:
- Senco SN60, SN65, SN65C, FramePro 600/700/750 FRH
- Bostitch N90RHN
- DeWalt D51845
- Hitachi NR83A
- Paslode 5324SRH
- Porter Cable FR350
and knock-off's thereof.

I don't use screws. Screws are slower and if you did use screws, you would have to ensure that all the heads were countersunk below the surface. Other reasons- Screws are more brittle than nails. If there is an application where I have to use screws in a floor (such as in decking), then I also use a type that lock-in so they don't back out from years of vibration.
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post #9 of 29 (permalink) Old 07-19-2012, 04:04 PM Thread Starter
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Quote:
Originally Posted by MAFoElffen View Post
My framing nailer is a Hitachi NR83A. Think that is comparable to yours. (Don't remember what your's is.)

For sub-floors I use something comparable to Senco M002041 - Ring Shank Full Rounded Head Nails, 8d, 2 3/8 x .113 (80mm x 2.9mm) Bright Basic... and I put down Liquid Nails Construction Adhesive on the jousts.

That gun nail will fit:
- Senco SN60, SN65, SN65C, FramePro 600/700/750 FRH
- Bostitch N90RHN
- DeWalt D51845
- Hitachi NR83A
- Paslode 5324SRH
- Porter Cable FR350
and knock-off's thereof.

I don't use screws. Screws are slower and if you did use screws, you would have to ensure that all the heads were countersunk below the surface. Other reasons- Screws are more brittle than nails. If there is an application where I have to use screws in a floor (such as in decking), then I also use a type that lock-in so they don't back out from years of vibration.
I have a prince auto nailer. Unfortunately, the nails also have to be galvanized, since they're going into a PT base. It's the combination that doesn't seem to exist. :P
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post #10 of 29 (permalink) Old 07-19-2012, 04:56 PM Thread Starter
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Good grief, I just saw that home depot sells Ardox (spiral) galvanized nails for my nailer.. but only in 3 1/4" long! Am considering it, I'd like to see one of those back out. :P
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