I'd think you would need a fence at least 25' high to keep a determined fox out.
On the plus side, most all fox attacks on our chickens here have been at night, so if the chickens are locked up safe and sound in a good coop at night it won't be as important on the fencing.
On the plus side, most all fox attacks on our chickens here have been at night, so if the chickens are locked up safe and sound in a good coop at night it won't be as important on the fencing.
