I have couple of 2X4 8' pressure treated lumbers left, Can I use them as King/Jack studs to support a 2"X 10" header in one of the load bearing wall in my basement ?


  • Pressure treated means they are treated with some chemicals to prevent rottenning. It may include arsenic. Not suitable for inside house use.
    – user263983
    May 2, 2021 at 12:21

1 Answer 1


Yes you can, but there are things you need to keep in mind. Pressure treated lumber requires hot dipped galvanized nails to fasten it in place. The treatment will rust regular nails to the point over time, they are worthless. So that being said, anything else you fasten to that material needs to be hot dipped galvanized or at least rated for use in ACQ/treated lumber.

As a mention, if you used them for the king studs and not the jack studs then the drywall or doors would have regular wood to fasten to. Just be certain to use the proper nails or fasteners to set it in place. No need to take chances

  • If the treated wood is dry and will not be getting wet again will it still eat non acq fasteners?
    – Kris
    May 2, 2021 at 2:15
  • 1
    There is a chance, but of the demoed material I have seen that had regular nails, they looked pretty bad. The nails were not totally shot, but where not as they should be. For structural framing, it is a no brainer to use the proper nails for that. If a door is going in an opening, it would be best to use proper nails there too. If drywall is going to cover the framing and a few screws or nails rust up because of that, it is not disastrous. If a jack stud or header fails....big problems.
    – Jack
    May 2, 2021 at 2:47
  • Its been 6 months when i purchased them. Can i use outdoor screw ? i know its uncommon to screw it with top/bottom plate. but screw will holds very well.
    – PowerTech
    May 2, 2021 at 5:23
  • 1
    Outdoor screws would be fine, as long as the packaging specifies pressure treated/acq. May 2, 2021 at 15:04
  • Yes indeed, not a problem, screws are being used more often in remodeling for attaching framing nowadays. As long as they are rated for contact with ACQ/treated lumber
    – Jack
    May 2, 2021 at 16:08

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.