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26 gauge or 30 gauge

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  • 26 gauge or 30 gauge

    I have to re-route some ducting in my house, just a bit of 6" round pipe to a heat register. I notice there is 26 gauge and 30 gauge round duct and fittings. What is more common and should I use one instead of the other? I realize the 30 gauge is less expensive.
    thanks,
    Andrew

  • #2
    Re: 26 gauge or 30 gauge

    26 Gauge is thicker and stronger. The screws when fastening take better where the 30 gauge tends to push away from the screw.

    I always try to use 26 whenever possible.

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    • #3
      Re: 26 gauge or 30 gauge

      Plus unless it's sound lined you get popping / flexing from thinner duct work..Atleast I do in my house .The houses were built in 59' and they used thin as* aluminum duct work. I had to use duct seal everywhere . It helped some
      ''Beer is proof that God loves us and wants us to be happy" Benjamin Franklin

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      • #4
        Re: 26 gauge or 30 gauge

        i use 26 ga all the time
        Charlie

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        • #5
          Re: 26 gauge or 30 gauge

          I have a fair amount of popping coming from my duct work, it doesn't seem flimsy like 30 gauge, it is galvanized and isn't rubbing against anything...

          Most of the sound comes from the trunk itself and not the 5" round takeoffs, is it possible that the trunk is too small?

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          • #6
            Re: 26 gauge or 30 gauge

            30 gauge is just fine for a run. The 26 gauge is made for flue pipe. I've never had problem with the pipe with screws taking or the pipe caving in if the pipe is put together properly. If the female pipe is pushed the full 1 1/2" onto the male piece and you run your screw about 1/2" from the end of the female piece, the screw will run in just fine.
            Last edited by suprheat; 03-03-2012, 09:05 PM.

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