Abstract: A self-raking fence panel (1) comprises a pair of invert, U-shaped rails (30), each having a horizontal central wall (32) with apertures (37) for receiving a plurality of pales (10), a pair of outer side walls (33), and rigid or resilient, integral internal return walls (34, 134) defining downwardly diverging ramped surfaces (40, 135) and a pair of recesses (42, 136) adjacent each aperture. The pales are provided with spring biased pins (20) which are compressed by the ramped surfaces (40, 135) as the pale is pushed up through the respective aperture (37) until the pins lock in the recesses (42, 136). Alternatively, the pales may have rigid pins (26, 143) which urge the return walls (34, 134) outwardly as the pale is raised until the pins enter the recesses. The fence may be supplied as a kit of parts and assembled on site by fixing the rails (30) to the posts (2, 2?), setting the posts in the ground, and then populating the rails with the pales.