I DONT use concrete around my fence posts for a few reasons. #1 the concrete traps moisture in the wood and doesn't allow it to escape. This post broke just above the concrete as it's the weakest point. #2 unless you use sono tubs, concrete heaves easily as it's often tapered like an acorn and the frost pushes it up. #fence #fencebuild #diyfence #fenceproject #carpentryskills #carpentrywork #fences #fencecontractor #fencerepair #fenceinstallation #concreteconstruction #privacyfence #diyprojects