Aprons might be easier and more effective:I plan to trench down by 12 inches and sink in metal fencing for diggers.
Good examples of anti-dig apron installation.
If rodents are prolific, burying the apron ~12" would be good.
https://www.backyardchickens.com/threads/wire-around-coop.1110498/#post-17093528
https://www.backyardchickens.com/threads/new-coop-project.1169916/page-2#post-18481208
So no snow load to deal with, where a shallow arc could be a problem.from San Jose
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