Will an 8 inch apron be sufficient?

[biteme2134]

First I lost a rooster to a coyote last winter so I have been tightening all my defenses this summer as I get ready for another winter of hungry coyotes. I have 1/4 hardware cloth that covers everything except my roof to the run is still open but is 7 feet high. I lost my rooster free ranging not in the coop too.
That being said I have extra hardware cloth that is 24 inches wide. Everything around the perimeter base is wood. So my thought is I can use 8 inch wide strips buried outside the coop. Thus would give me 3 strips per foot. I've read everyone does 10 to 12 inches. My question is will 8 be sufficient? I'm trying to avoid buying more cloth.

 

[Folly's place]

Go wide and deep, and cover the run if possible. My run is covered as hawk protection, but not all hardware cloth, so my flock is locked in their secure coop at night without fail. I also have a concrete foundation so no predation can dig in. Many critters can climb run fencing! Mary