I was told that chicken wire is good to keep chickens in. It does little or nothing to stop a coyote or stray dog. I'm using 2x4 welded wire for big predators with 1/2" hardware cloth both buried and rolled out from the coop. I figure this is like putting candy on a table just out of reach of kids. They get hungry they are desparate and will do amazing things to get to food. I'm also putting an electric wire around my coop and run. I'm gonna run it low and high for different predators. I may be overdoing it but my biggest fear is to have to shoot my neighbors dogs(we are good friends). Like the earlier post said it's to late if you don't do it right the first time. Good Luck