We include a 20 x 40 (short) and a 20 x 60 (long) arena test in all of our monthly competition classes to ensure there's something for everyone to choose from.
If your arena is larger than the required size you can mark it out with poles or boards - see our section on How to set up an arena. If your arena is smaller you may not be able to take part in the competition classes, but you are welcome to enter one of our monthly training classes where you'll receive more feedback from the judge but won't be eligible for prizes and rosettes.