Seems like a simple question, but I have been searching for a while. Everything I find is about the depth of the hole for the concrete, not the depth of the post.

I want to know how far a post must go into a concrete hole. The concrete is well set, but has some muck in it. I need to know how deep does the post go, so that I know how much muck to clear.

Posts are wood. Post/hole width varies 2→3 inches (don't ask). Fence height will be about 4 feet.

  • The question is somewhat answered by the doing of it. Unless you take pains to elevate the post in the hole, no concrete will end up below the post. It's more a matter of what you want _under_the post (and the concrete). – isherwood Jun 11 '19 at 13:02
  • what sort of wooden post are you putting into a 2" hole? – Jasen Jun 14 '19 at 23:15

I think the Fence Bible described a method for putting a few inches of gravel at the bottom of the hole, resting the post on that for drainage, then pouring concrete.

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