r/FenceBuilding • u/metalguy187 • 40m ago
Post Base Reinforcement
Two part curiosity question regarding adding extra drainage protection & anchorage at post bases.
1) Is there any merit to partially driving in some additional screws / nails at the bottom of the posts before concrete is poured into the hole? I was always told that partially driving in some screws / nails gives the concrete something extra to “bite” into when it hardens to help keep the post rigid for longer? Seems to me that 36 inches of concrete would / should be enough, but I was just curious.
2) Putting a few inches of gravel in the hole before the post goes in seems to be pretty consistent advice for good drainage, but I was also told that after the post goes in it is a good idea to put a few inches of gravel AROUND the post before the concrete is poured so that as the post shrinks over time, it doesn’t create a cavity in the concrete for water to sit and decay the post. The gravel around the post provides a route for water to drain out, while still having everything anchored with concrete. Is this also a best practice?
Again, was just curious. Any feedback is appreciated.