I built one for my father in law on Lake Eufaula. We used 4" schedule 40 steel pipe for post. We then used a piece of 6" around 30 inches long to drive them like a drive a fence post. We would drive them down then I would weld on a section and drive some more. We drive 10 post that way. It was a hell of a job


"And the days that I keep my gratitude
Higher than my expectations
Well, I have really good days" Ray Wylie Hubbard