Yeah, I missed commenting on that. And there is nothing wrong with
doing that. Most people down here want their fences touching the ground
to keep small pets contained. If they can see under the fence the have
a reason to dig under the fence. ;~) And another consideration, here,
we have St. Augustine/carpet grass. It is typically pretty thick and
best kept tall, cut at 3.5+" during the dry months. To keep the picket
off of the wet morning grass so that you could weed eat under the
picket, the picket would have to be pretty high above the actual ground.
AND just a side note about the rot board. The rot board holds up very
well to a weed eater compared to a cedar picket.