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michos
Junior Member
Last Activity: 04-04-2021, 07:03 PM
Joined: 11-19-2011
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  • michos
    replied to Gantry I-Beam suggestions needed
    Thanks for all of the suggestions. Pietromarruggio, your gantry is a tank! I went ahead and got mine built. Used the W4 x 13 beam with 4x4x3/16 columns, 3x3x3/16 for the 45 degree supports and 4x1/4 flat bar for the base. 8 - 1/2" concrete wedge anchors on each side. Turned out pretty well...
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  • michos
    replied to Gantry I-Beam suggestions needed
    I went by the local harbor freight. The beam seems to be about 4-3/4 tall by about 3" wide so likely a similar strength to a 4w x 13. I do think that the harbor freight gantry will make quite a bit of noise if its jostled around since it has the two joints where it can be raised. It also wouldn't...
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  • michos
    replied to Gantry I-Beam suggestions needed
    Do you happen to know what size i-beam this setup uses? Also, I'm curious how much movement it would have with the back and forth of the heavy punching bag. Im sure its great for static lifting but with a 150lb weight swinging around in the middle, id think it would at least rattle quite a bit given...
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  • michos
    replied to Gantry I-Beam suggestions needed
    I appreciate the idea and I agree that, in a different scenario, I would be easier and not much more expensive than fabricating it myself. Unfortunately, I need it to span the entire 13' of our carport so that I can still get a car in and out and also so that my wife has enough space to circle it while...
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  • michos
    started a topic Gantry I-Beam suggestions needed

    Gantry I-Beam suggestions needed

    My wife wants me to build a gantry in our carport so that she can hang her thai style punching bag. We don't want to hang it from one of the ceiling joists as I imagine the bouncing and swinging of that weight would not be good for our home.

    My plan is to build a pretty standard looking...
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