How to Support a Fence Gate Post

Supporting a fence gate post the right way in the beginning will help ensure a longer life for your garden gate. Gate fence posts can be the same size as other fence posts or larger, depending on the design of your fence. You can also buy specially-designed gate posts to make your garden fence and gate even more visually appealing. Fence gate posts come in many materials, including vinyl, but for a natural look, choose redwood or cedar. These woods, as well as other treated woods, resist rot and decay and help prolong the overall life of your garden fence and gate project.

Support your garden gate post for years of service and beauty.
  1. Check with the building codes department in your city to determine how deep you need to dig the post holes. Cold weather climates usually require post holes to be below the frost line, but a rule of thumb is to bury about half of the length of the post.

  2. Line up the post holes at the ends of the string you used to layout your fence position. Use a gas powered auger or a manual post hole digger and dig the post holes to the appropriate depth.

  3. Fill the post hole with 5 or 6 inches of gravel. This will allow for better drainage and help extend the life of the posts.

  4. Place the post into the hole on top of the gravel, and line up the edge of the post with the layout string. Use a plumb line and a 4-foot level to make sure the post is level on all sides. Adjust the post to level by moving some of the gravel around at the base, or simply have someone hold it in place while you pour the concrete.

  5. Pour mixed concrete into the hole until the concrete fills the hole and comes up a little above the ground. Use a trowel to slope the concrete at the top of the hole towards the ground to help drain water away from the post.

  6. Brace the fence gate post firmly until the concrete is set.

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