Used when creating a run of continuous fencing from feather edge boards. Our Brown Pressure Treated Arris Rails are a versatile, triangular-shaped backing rail, ideal for fixing feather edge fencing boards. Pressure-treated for durability, offering a 15 year service life. Sturdy and strong. Weather resistant. Provides support for featheredge fencing. Responsibly sourced softwood. Suitable for domestic, agricultural and industrial applications.