Traditional fence posts, where wood is directly set into concrete, will rot and fail where the wood is in contact with concrete or the dirt that seems to always build up around the base.
While a post set in concrete can rot in a few years or may last 20+ years, 90% of all fence repair projects are due to post failures. To prevent this main point of failure, a fence can be build with a post-on-pipe design.
For post-on-pipe, a thick galvanized pipe is embedded into a channel cut into the post. One third of the pipe is embedded in the post with two thirds protruding. The protruding pipe is then set into concrete, so that the wood of the post never comes in contact with the ground (if soil levels are maintained).
This design means that a post could last a lifetime. So… yes, probably you should.
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