The netting is not cheap. But, you can surround a much larger area, for far less $$$ it would cost if you built a wood framed, hardware cloth fence. You could do what I did. I started with 300' of the fence, and over the next couple of years, I bought 350' more, to spread out the cost a bit...
If you properly build your coop, and properly attach the hardware cloth over the window/vent openings, you will have no trouble. A coon, slick as they are, will not be able to open and remove a carabiner clipped onto a hasp lock. After I built my coop, when I would come out in the morning to...