kickboard building question-need answers quick!
My contractor has started framing in the kickboards for my indoor arena. Right now the compacted base of limestone screenings is in. I am told that the next step is to put in the kickboards and then the final step is putting in the sand. My builder is building the kickboards so that they hover 4 inches above the compacted base. I am only putting in two inches of sand, so that means that the kickboards are going to be hovering two inches above the footing. This seems really dangerous to me. It seems like a foot could definitely get caught in there. Also, it seems like a lot of sand would migrate underneath the kickboards. Should the bottom edge of the kickboards be flush with the packed base? Or flush with the top of the sand? Ideas?
How much sand for arena footing?
The finishing touches are being put on my indoor arena as we speak. I am having a lot of discussions with my excavation/footing guy about how many inches of sand should go on top of the base. The base is 8 inches or so of limestone screened, watered and packed with a big vibrating roller. Under than is larger, coarser gravel which was also watered and packed. I want to start with 2 inches of sand as I figure we can always add more later, but taking it out is a pain. He is telling me that he usually puts in 4 inches, which seems likes so much to me! He is concerned that with only 2 inches of sand the horses will injure themselves when they hit the base and the base will get churned up and mixed in with the sand. Thoughts? I am a dressage rider if that makes any difference.