Setting Fence Posts In Dry Concrete. The posts at gates and the like may be a different issue, but i would make sure the post could get dry, that is, that it could drain. I usually estimate 1.5 (60 lb) bags per hole. I have heard both pro's and con's of setting a fence post in concrete causing a fence post to rot prematurely.
Learn how to set a concrete or timber fence post, what size post you should use, how deep the hole should be for the post you're using.
Replacing a fence post may seem like a daunting task, especially if concrete held the original post in place. Concrete fence posts offer the most robust support to your fence panels. Using premixed concrete rather than dry concrete will ensure ultimate security. Fence posts, deck footings, trellises and arbors …they all require solid posts set into concrete to make them stable. Concrete would be rodded and the posts tapped to help consolidate the concrete and i would set braces and check for plumb. (use it in place of the old. Have a friend hold the post steady while you proceed to the next step. Let the concrete dry for at least 4 hours.
