Based on those IBC calculations, even using double the lateral bearing pressure of our sandy soil for singular poles, it indicates something like 5.5ft deep for a 12" diameter hole to resist 440lbs at 3ft above the surface. It looks like I need a 18" diameter hole 4ft deep.
As for the reason I...
Thank you for the information.
In regards to #2, I have seen that diagram and understand it, but I have not seen the calculations necessary to determine what force my soil (sand) can resist (assuming the post does not fail at ground level.) How would I calculate the total force being placed on...
I think we are on the same page about building codes being the minimum which is why I've already designed above and beyond. And what I was saying about the fence posts was from researching how most fail; the consensus seems to be post failure (either from winds higher than designed or post rot.)...
I'm about to start my senior year in ME but I have questions about a small section of fence I'm building at a house I own.
The largest span I have between two 4x6 posts is 5.5ft, fence is 6ft tall. I'm trying to figure out what will fail first and then figure out how to reduce the probability...
