Homemade food plot equipment
I'm in the process of making one right now. I secured a 5' piece of double wall for free. The only downside is it's 24". I checked at Menards for something similar but smaller diameter, $25\ft in 10' lengths only. I cut the piece in 3 sections to make it (somewhat) easier to handle. Centered the pipe with plywood ends same as you. Filled with concrete, finished that this past Monday after work. Very heavy, way more that what's needed I think but it should work ok for me. If not I'll keep an eye out for some smaller diameter culvert and start over. I'll have the frame so just out some pipe and concrete. I have a buddy who owns a metal fab shop here in town. Got the pipe and a solid 1 7\8" rod for the axle. I'll be picking up the rest of the steel shortly to start welding up the frame. My son is taking a welding class in school so he can get behind the mask on this one.
Good luck plotting this spring!