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me-chewbacca OP t1_jece9m6 wrote

Reply to comment by Truesoldier00 in Need to hang something from ceiling and unsure what lumber to use by me-chewbacca

Realistically it would be around 350lb but I am calculating 500lb as a safety margin. Instructions say to hang it to just one joist. I am being more conservative and planning to fix to a 4x4/2x4 over several joists to spread the load.

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Thatguyjmc t1_jech4po wrote

You aren't "calculating". You are "guessing". There IS a calculation you can make which determines what the effective maximum load of a swinging weight is.

I would spend a little time looking this up, or maybe pay an engineer 50 bucks for an hour of math.

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