1. Mark out your designed fence line using a maximum two metre gap between posts.Identify the position of each post by lightly installing, loosely, a steel 3 or 4 inches into the ground having previously scraped the ground around where the post will sit. If you have to shorten any rail …now is the time to do it and review the position of the steels. When you are satisfied with your layout hammer the supplied steels into the ground so that half the length of the individual steels are below the ground, meaning half will be above ground.