Many people use the apron type fencing style with their coops because they live on rocky soil or they just can't dig a trench to bury their wire.
I've actually got a couple of spots that were too hard to dig so we folded our fence outward in that apron style in those places. Personally, I think that it is more possible for a predator to dig underneath the apron and then get into the run but I certainly don't have any stats to back up that thought. I just know that my dog digs and he starts his hole about a foot from the side of the house and then slants his hole toward the house ... so if that were the chicken run he would be able to dig under the apron and potentially end up inside the run.
Having said the above ... most predators dig right next to the fence which is why the apron should be totally effective.
Let us know what you do.
I've actually got a couple of spots that were too hard to dig so we folded our fence outward in that apron style in those places. Personally, I think that it is more possible for a predator to dig underneath the apron and then get into the run but I certainly don't have any stats to back up that thought. I just know that my dog digs and he starts his hole about a foot from the side of the house and then slants his hole toward the house ... so if that were the chicken run he would be able to dig under the apron and potentially end up inside the run.
Having said the above ... most predators dig right next to the fence which is why the apron should be totally effective.
Let us know what you do.