I am considering this for horse stall flooring. Is it sturdy enough to stand up to horse hooves, possibly some pawing? Will it stay in place? The perimeter of the stall has an 18" wide concrete floor, but the center of the stall floor is clay. The mats could possibly be secured on the edges to the concrete, but would not be securable in the center, and I am worried about shifting or curling edges. Has anyone used them in this application that you know of?