Arris rails are essential horizontal support beams used to connect fence posts together, forming the framework of post-and-rail fences. This 3-metre length bridges between posts to create a sturdy, stable structure that holds fence panels or palings in place. Commonly used in garden boundaries, field fencing, and property perimeter work, arris rails distribute the load across posts and provide the lateral strength needed to withstand wind, weather, and impact. The green-tan treatment protects against rot and extends the life of your fence structure, making it an economical choice for long-term outdoor fencing projects.