Hi, Need to put up new fence and have decided to use concrete fence posts. The posts are 8ft high - fence panels are 6ftX6ft and gravelboard
6inches high. The books states 2ft deep hole but by doing this the top of the fence panels will be higher than the top of the posts. My question is whether an 18inch deep hole would suffice or should i get
9ft posts and dig a much deeper hole.
Thanks in advance