Working on the details of what I want to do for arena construction. Arena will be crowned 2 degrees and I plan to extend the base a few feet past the perimeter and then have drainage swales. So there will be a downward slope on all sides. I have talked to several people that wish they would have used something other than the natural soil to hold the base and/or footing in place. One contractor recommends that you have something in place for the aggregate base and footing, while others just worry about footing.
Anyway, if you don’t want to fence the perimeter, the option appears to be a retaining wall of either 2x8 or 2x10" and stakes every so often. I’m not clear on what is used for stakes, how deep and how you prevent a 2" board from bowing and rotting (even if it is pressure treated)?
Another option is RR ties. Not super easy to get and the ones I see look like they were thrown away by the RR for a reason. I assume rebar would be used?
We will likely fence the arena, but my understanding is the retainer goes on the outside of the fence–thoughts?
Second debate is fencing. I will have to take down my no-climb to build the arena. The other fencing in the area is black wood board and coated wire (depending on paddock or pasture). I also have some Horseguard.
I wan’t something low maintenance and attractive, but can’t really afford continuous steel/galvanized pipe at the moment. Wood board looks nice, but is such a bear to stain (all my fencing is black). I had thought about doing Centaur/Ramm flex fence board, but am not clear on how terrible the corner bracing will be? Anyone use this for a smaller area like an arena? I also want 2 gates, which means even more bracing.
I have been pouring through internet pictures/pintrest, but am just not sure what to do. Any ideas welcome and pictures appreciated.