I’m getting ready to begin construction on an outdoor arena (yay!) and have been speaking with several contractors/getting sand samples. It’s been recommended that I go with a DG (decomposed granite) base, with C-33 sand on top. Does anyone have any experience with this?
I received a sample of sand for which the sieve analysis was close to C-33 specifications, but it seemed a lot "finer" than many sands that I've seen used in arenas. This isn't necessarily a bad thing, but I am concerned with it blowing away. It appears to be about 70% sand to about 30% fines, which I've heard can be a good ratio for stability.
Any thoughts? What has worked/not worked for you? I'm considering a sand with some sort of limestone screenings mixed in. I'm hoping I can get a fairly "stable" sand without having to water it a lot. I live on the West Coast, and water is precious out here. Definitely interested in a sand type footing, if I can get away with it, rather than something with additives (rubber, fibers, etc.). I want to use this arena for dressage and jumping up to about 3'6". It's a private arena, probably 2-4 horses a day, absolute max.
Sorry for the novel and thank you in advance!