My new (yet unfinished) run is about 18' x 50', with a 6-foot-high 'roof' - all of 2"x4" welded wire fencing. I am making a 4-foot apron of same 2x4 welded wire fencing. Will have a 3-foot strip of hardware cloth around the lower part of the walls. All to be held together by a few thousand loxit rings now en route. I will have large rocks along the apron, along with some small pine tree trunks here and there. Question: Is 2x4 welded wire fencing adequate to keep raccoons, fishers, and foxes out? Worried in Mass.