When we built our run, we used 12 gauge utility wire (with 1/2" hardware cloth on top of that). I haven't seen any 12 gauge around for a long time. Its all 14. I felt okay putting the 14 gauge on the top of the run, but I would feel insecure putting that on the sides, without the hardware cloth on top of it.
I have a coon that's trying to get into a window. The window is covered with 1/2" hardware cloth, held in place by wood all around, using screws.
I have discovered that you can't have anything near it that the coon could use to get to it..........like a tarp awning, a gutter, etc., etc. I'm even thinking that wood frame would be enough for the coon to hold onto while digging into the hardware cloth. The window is 4-5' off the ground.
Those danged coons are really contortionists.
I'm thinking of putting double hardware cloth on the windows.
I can't believe their strength. do you think its strength, or is it their sharp teeth and claws??