Hello.  I am working on my chicken coop.  I am converting  dog house (4'x3') up 30" on 4"x4" and 2"x4" frame work.  I am adding 2'x4' addition to coop. The run has a taller area with a human sized door to make it 4'x8' total.  I am using 1/2" 19 gauge hardware cloth for vents, window, and run, but 19 gauge seems kind of thin.  I couldn't find a thicker gauge version locally so I added white, large whole pvc lattice to the run, but the hardware cloth in the window opening still makes me a bit uncomfortable to leave open unattended.  I stappled it to the outside of the opening and secured 2"x4"'s over it for security and for the window framework.  The coop and run sits on concrete blocks and I put the hardware cloth all along the bottom of the run, tucked under the blocks, then added several inches of sand.  When I finish the coop I will add a hardware cloth apron around the perimeter of the run.  My 4 wyandottes, 2 silver and 2 gold, will be 6 wks. old this Monday.  The coop will be very close to, if not finished, this weekend.  We once had a raccoon rip open a sheet metal vent on the roof and have her babies in our attic.  If she could do that what could they do to this cloth?  Am I being an over protective Mom here or should I be worried about raccoons ripping through that hardware cloth?