Disclosed is a prop (30) for supporting post in a fence line. The prop (30) may be a tube of mild steel and comprises a head (32) at a proximal end. The head (32) is defined by flattening or squashing the end of the tube. The head (32) is adapted to enable a close fitting engagement with a corresponding profile of a strainer post, for instance cutting along a radius (R). A spigot (36) may be formed at the distal edge of the head to locate in a corresponding hole defined in a post. The prop may be used with a ground engaging pad, a bracket, a strainer post, and a tensioning rod to form a stay assembly for supporting the strainer post.
