I have 6 RIR in a large dog kennel .I put more chain link on the top. Then i put 3' chicken wire around the bottom .One foot was buried and the other two feet i wire tied it the dog kennel. I have coons and dogs try to get in with no luck so far. A buddy off mine just gave me 100' x6' chain link the other day .i can see a large run in the future.