1/4" hardware cloth is easier to tack down and cost about the same as 1/2". I use stainless self tapping screws right through the square to my frame.
Lining the bottom two feet will not do much to help as coons climb (as well as just about every other animal I've seen) and a fence would be super easy to scale. IMHO, it is not necessary to line the whole thing with HC. However, in the case of my coop, it is very open and my girls like to sleep on the doors and can be exposed up against the welded wire. Therefore I would put HC anywhere they might lean against while sleeping. they won't move around much once settled. Coons are tricky too, They team up if they think they can get a meal. One will cause a stir and make the chicks move against another wall where a second coon is waiting to grab them. So if you feel that would be a concern, then HC the whole kennel, save the roof part. There are probably others that have better suggestions, this has just worked for me. I also put welded wire in the ground, laying flat around the perimeter of coop and run about four foot out buried.
Lining the bottom two feet will not do much to help as coons climb (as well as just about every other animal I've seen) and a fence would be super easy to scale. IMHO, it is not necessary to line the whole thing with HC. However, in the case of my coop, it is very open and my girls like to sleep on the doors and can be exposed up against the welded wire. Therefore I would put HC anywhere they might lean against while sleeping. they won't move around much once settled. Coons are tricky too, They team up if they think they can get a meal. One will cause a stir and make the chicks move against another wall where a second coon is waiting to grab them. So if you feel that would be a concern, then HC the whole kennel, save the roof part. There are probably others that have better suggestions, this has just worked for me. I also put welded wire in the ground, laying flat around the perimeter of coop and run about four foot out buried.