4 ms·

Definitely want to use nails for framing (especially in zones that might experience the shearing forces of an earthquake) -- here are a couple of links so folks

by rpnzl 5y ago

Definitely want to use nails for framing (especially in zones that might experience the shearing forces of an earthquake) -- here are a couple of links so folks can see for themselves: [Project Farm](https://youtu.be/qmajKElnwfE https://youtu.be/qmajKElnwfE) [Vancouver Carpenter](https://youtu.be/5-PlR8tf84c https://youtu.be/5-PlR8tf84c)

jjeaff 5y ago
In that project farm video, the screws came out stronger than nails in every test except the repeated bend test (even the drywall screws). I think it could be argued that since screws are much stronger and have better holding power, they are much less likely to get loose enough to the point that they are going to be repeatedly bending back and forth.
- rpnzl 5y ago
  I think this is valid -- I'm not a structural engineer so I can't speak to how an earthquake might behave differently than the tests in the Project Farm video, but I can imagine a scenario where a screw becoming a bit loose would create a situation that more closely resembles the repeated bend test. The IBC still outlines nails as appropriate light frame fasteners [0], and where I am (on Maui) there's no local provision in the code to allow swapping in screws. The GRKs [1, 2] and Simpson [3] screws others have mentioned are seemingly valid alternatives to 16d nails, but ultimately it's going to come down to what you're comfortable with, the local code, the inspector, etc. [0] https://codes.iccsafe.org/content/IBC2021P1/chapter-23-wood#IBC2021P1_Ch23_Sec2304.10.2 https://codes.iccsafe.org/content/IBC2021P1/chapter-23-wood#... [1] https://www.grkfasteners.com/structural/r4-multi-purpose-screw https://www.grkfasteners.com/structural/r4-multi-purpose-scr... [2] https://www.grkfasteners.com/structural/rss-rugged-structural-screw https://www.grkfasteners.com/structural/rss-rugged-structura... [3] https://www.strongtie.com/strongdrive_exteriorwoodscrews/sdws-q_screw/p/strong-drive-sdws-framing-screw https://www.strongtie.com/strongdrive_exteriorwoodscrews/sdw...
  - jjeaff 5y ago
    I definitely don't know for sure. But one thing I do know for sure, is that a lot of official building code is not necessarily based on careful scientific study but rather on "that's the way we've always done it".
hinkley 5y ago
You can burn up a lot of time on Project Farm. Beware/enjoy.

by rpnzl 5y ago

jjeaff 5y ago

In that project farm video, the screws came out stronger than nails in every test except the repeated bend test (even the drywall screws). I think it could be argued that since screws are much stronger and have better holding power, they are much less likely to get loose enough to the point that they are going to be repeatedly bending back and forth.

rpnzl 5y ago
I think this is valid -- I'm not a structural engineer so I can't speak to how an earthquake might behave differently than the tests in the Project Farm video, but I can imagine a scenario where a screw becoming a bit loose would create a situation that more closely resembles the repeated bend test. The IBC still outlines nails as appropriate light frame fasteners [0], and where I am (on Maui) there's no local provision in the code to allow swapping in screws. The GRKs [1, 2] and Simpson [3] screws others have mentioned are seemingly valid alternatives to 16d nails, but ultimately it's going to come down to what you're comfortable with, the local code, the inspector, etc. [0] https://codes.iccsafe.org/content/IBC2021P1/chapter-23-wood#IBC2021P1_Ch23_Sec2304.10.2 https://codes.iccsafe.org/content/IBC2021P1/chapter-23-wood#... [1] https://www.grkfasteners.com/structural/r4-multi-purpose-screw https://www.grkfasteners.com/structural/r4-multi-purpose-scr... [2] https://www.grkfasteners.com/structural/rss-rugged-structural-screw https://www.grkfasteners.com/structural/rss-rugged-structura... [3] https://www.strongtie.com/strongdrive_exteriorwoodscrews/sdws-q_screw/p/strong-drive-sdws-framing-screw https://www.strongtie.com/strongdrive_exteriorwoodscrews/sdw...
- jjeaff 5y ago
  I definitely don't know for sure. But one thing I do know for sure, is that a lot of official building code is not necessarily based on careful scientific study but rather on "that's the way we've always done it".

hinkley 5y ago

You can burn up a lot of time on Project Farm. Beware/enjoy.