For chicken coop maybe. Patio stones around the edge of the fence makes it hard to dig under. Great idea for the outside of chicken coops and garden fencing too. Would also keep weeds from growing up into the fence.
Alternative dog run but prefer flushable gravel one. Perfect Turf® Dog Runs No Muddy Paws! Much easier to maintain than natural grass. More gentle on your dog’s feet than gravel or mulch. Droppings become dry & hard making clean up a breeze!