I love Mike Burgett's grass, but as a long-time keeper of cattle, a low 2-rail fence with the boards nailed to the outside of the posts will barely slow them down. Even short-legged Dexters can jump 4 feet....
This fence is on the Qualman's Michigan Lines RR. We pass this cemetery every week in our travels, and Brook & Jay have nailed that entrance way and sign in this scene.