How big should a round pen be to exercise a horse?

Question

the size and the cost

Answer 1

Couldn't tell you the cost, but personally I wouldn't want anything smaller than a 15m circle - any smaller and the horse could have issues balancing himself in canter.  20m would be your safest option - the width of a normal riding school.

Answer 2

60 ft is perfect that's what my trainer recommended for my horse. It's the perfect size not too big where the horse gets away or too small where you can get kicked.

Answer 3

The diameter should be 20m. Couldn't say the cost, though. But I believe that if you use wood, that would be pretty cheap.

Answer 4

20 meter diameter

Answer 5

50ft is sufficient, not to big not too small