My hardware cloth on the run is one foot up the sides (also "aprons" out 1 foot at bottom). Remaining sides and top are just chicken wire. So, tell me, what's to stop a racoon from just going up the corner posts and ripping thru the chicken wire wherever he can reach it????? We placed the hardware cloth just one foot up because that's what I read others had done and it seemed reasonable at the time. But I just keep wondering and worrying if that's enough... Also, if I put hardware cloth on the top, then I'll start worrying about the snow/ice storms we get. I was able to chop off the ice this winter and the snow came thru easily with help, but it seems that hardware cloth would just trap it and act like a solid roof. THen the whole thing collapses---see what this chicken business leads to?? Just worry!!! EEEEK!! thank you all!