masonry string and marking the posts with tape to know the depth to sink it is a good idea.
At 07:06 PM 9/1/2010, you wrote: >What I did was to drive stakes into the ground at the corners then >loop a good strong string, masonry string is excellent for the >purpose around the posts so that there are two parallel strings >between which I could mark and dig my holes. This also allowed me to >determine the height since the ground isn't nice and level but you >probably want the top of the fence to be level for appearance. You >can then decide on height and I marked each steel post with tape at >the desired height so I would know exactly how deep to sink them.