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How Deep do Metal Fence Posts Need to be Buried?

Metal fences are on the rise, and as we head towards the end of summer, many homeowners are looking ahead and focusing on ensuring their garden is safe, secure, and fit for colder and harsher weather conditions. If you’ve just invested in new metal fences and now have the posts ready to complete the job, one of the first questions you may ask yourself is, “how deep do metal fence posts need to be buried?”

You’re right to ask this question; after all, an excellent installation involves a lot more than digging a hole and setting the post in it. The depth at which the posts are buried, the quality of the concrete mix, and various environmental factors all contribute to the stability and longevity of your metal fence. Let's take a closer look at the job at hand and give you some tips along the way!


How low can you go?

The depth of the fence post all depends on the weight and pressure of the fence in question, as well as the soil type in your area, and even your local climate. Although there is no one-size-fits-all answer, metal gate posts should generally be set to a depth of at least 2ft. If you are planning on taking up the task yourself, we highly recommend using a post-hole digger, also known as a Shuv-Holer. This type of shovel is designed to create very deep, narrow holes in a fraction of the time it would take with a regular shovel, but that’s not to say it’s easy work. Take your time if you want to complete long fencing runs and be sure to drink plenty of water.


Concrete provides long-lasting support

When supporting your metal gate posts, consider using concrete mix instead of gravel. Concrete provides a secure foundation for your post for many years to come, but gravel simply does not create the same strong bond – ultimately, it’s not a reliable option for metal gates. Hold the post in place for a good few minutes while the concrete sets. Ideally, it is best to wait for the concrete to dry and set before adding the metal fencing.


Post-installation tips

Now that you know how deep your metal gate posts should be buried and how best to secure them, what can be done to ensure they remain in excellent condition? Keeping an eye on your fence periodically and taking the necessary steps to repair or replace broken posts is a must. A regular maintenance clean must be carried out every so often with warm, soapy water and a sponge to remove any dirt or debris that may cause damage. Waxing the posts with a metal wax sealer should be done annually to create a protective layer against rust and corrosion.


Looking for more advice? Contact Metal Gates Direct

At Metal Gates Direct, our posts are supplied 2ft longer than the height of the gate, providing you with a robust and rigid installation that will stand the test of time. Our team of specialists are always on hand to provide you with advice and guidance regarding the installation and maintenance of your metal fencing and gates, so don't hesitate to reach out if you have any questions by calling 0844 804 5577. Alternatively, please email

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