Twin-wire fencing 868 mesh fencing offers an extraordinary level of security. The design of the mesh combined with the thickness of the steel wire makes it extremely difficult to cut through, whilst the way the profile at the top of the panel makes it difficult to climb over. Also, twin mesh fencing's open design gives you and your security systems a clear line of sight, enabling you to carefully observe any suspicious activity 6'x12′a 86'x12′ 8'x12′ing place on the other side of your fence.