I have a roughly 10' by 10' pergola built with 4" by 4" posts with 2" by 6" struts and 2" by 4" braces (picture should be attached) that is bolted to the joists of the deck, my gut tells me that the 4x4's aren't sufficient to use for hanging even though I only weigh around 160lb (been forever since I've weighed myself, skinny 6'3" guy) but I'm not an engineer so can any experts chime in and confirm/deny my gut feeling?
I also think the lateral load would likely be too much without the posts anchored in the ground or additional braces at the bottom (that my wife would never allow and rightfully so as they would be a major tripping hazard), however I'm just guessing and applying common sense so I'm curious to get an expert's opinion.
pergola.jpg
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