cannesdo wrote:
NinerBikes wrote:
I think installing that pole is a liability waiting to happen.
As a general contractor, and knowing what the roof and rafters were engineered for, swinging from a mounted pole at 125 lbs wasn't one of them, nor was it safely designed to accommodate such added features.
Really bad idea, IMHO
This isn't pole dancing. There's no pole involved. Just two bolts from which silks hang that you use to support yourself while you stretch.
Structurally, there's no difference in the stress of standing on a specific spot and hanging from it.
I'm not sure that the stress from standing in one spot is the same as say some lag screws into a 2x2 and you hanging from it. Seems to me IIRC that the smaller the contact point (your foot vs a 1/2" or 1/4" lag screw) is an exponetially different stress factor. IE if a smaller area supports the same weight then the stress on that smaller area will be greater.
So if you weight 125 lbs and your one foot has an area of 24 sq inches (a small foot of 6"x4") then the pressure is 125/24=5.20 pounds per sg inch. Same weight on a 1/4" lag screw 125/.25=500 pounds per sq inch.
So your "no difference" is flawed from the get go in my opinion. That being said I think you could get your "yoga swing", but I really think you need to do more research on stress and ways to spread the load over a wider area than just two bolts into a RV roof.
