Ok so I didnt know where to post this so I decided since I do mostly western riding whats a good size arena for a general horse boarding traing and lesson facility? We are moving to 5 acres where I have my own 7 stall barn 2 tack rooms lights for an arena and No fencing yet. Whats a good general size arena I don't want more than an acre in size but an acre is a bit much for the area im given to work with. Also what size round pen is a good size and how many panels would I need to make it. Lol we dabble in every area of riding??? Please help!!!!