THANKS VERY MUCH ANT FOR YOUR REPLY ( LEN )Ant said:I would get a length of treated timber the same height as the panel and the same thickness as the fence panel/slot 2" x 2" ish should be OK and plane or cut to the required angle along its length. Then screw this to the end of the panel (angled face to the panel) This will then allow the square edge to sit in the slot but have the panel at an angle.