I have 13 acres and the area I want it I have plenty room to make it bigger. And it will be outdoor non-covered. I dont have it fenced in I have stakes and some string right now just as a guide. I didn't want to start fencing it in if it wasn't going to be big enough. We do a variety of disciplines, one day I could have barrels set up and the next day have jumps. So I definetly want something that will be able to handle that comfortably. As it is we have been using the staked out area to do barrels but it seems a little tight but that could be me.