Join Date: Apr 2008
Location: Orange County, NC
Most arenas that I've seen that drain well and maintain good footing have about 4" of crusher run/gravel under 6-8" of screenings/stone dust. I don't know how much of the work you plan on doing yourself (labor is expensive), but around here you can't even get that much rock for a small arena for $1500. Hope you live in a less expensive area.
On the sixth day, God created the Quarter Horse.
On the seventh day, he Painted the good ones.