Ok. The floor of my new coop sits on top of two 4x4s. The coop is 7'x7' and the floor joists sit perpendicular to the two 8' 4x4s. Those 4x4s are sitting on some cement platforms/blocks. This being the situation, there is approximately a 6" gap around the perimeter between the floor of the coop and the ground. What would be the best way to block this area off preventing predators from getting underneath the coop? I was thinking either Landscape Timbers or maybe Cement Cinder Blocks... Maybe one of these on top of some wiring?