How to Fix and Then Extract a Fence Post With Ease





Introduction: How to Fix and Then Extract a Fence Post With Ease

Here's a video about this method.

Step 1: Traditional Method

I stopped using it a while ago, I care about my customers and myself.

Step 2: Reconcreting?!?

when you dig up the lump of concrete you generally end up with a much bigger hole and you might have  to use a lot more concrete as shown on the picture to fix the new fence post. See for instance the havoc created at minute 0:50 on youtube video 
More work, more material, more costs. All this can be avoided.

Step 3: Keep a Gap!

this is a way to re-use the concrete foundation

Step 4: Apply the Spacers

The spacers will keep a uniform gap between the post and the bag

Step 5: Insert the Post Socket Bag

the socket bag is specifically designed for the purpose of fitting a 100x100mm (4"x4") section fence post. The bag is fairly robust and 900mm (3ft) long to cover any eventuality and ground conditions but can be easily cut to a shorter lenghth

Step 6: Fill the Gap With Dry Sand

fill the gap with dry sand and pat while doing it to create a grip between the socket and the post

Step 7: Insert Some Foam on the Top

the material used is off cuts of insulation pipes, this is to separate the silicon from the dry sand

Step 8: Silicon It

seal the top with silicon to keep the water out.

Step 9: Concrete It

insert the post into the ground and concrete it in.

Step 10: Suck It Out

to extract the post, cut the  silicon seal and suck the sand out with a vacuum cleaner

Step 11: Replace

now you have a hollow foundation and can replace the post re-using the dry sand.

Step 12: Concrete Out?

should you need to remove the concrete foundation completely due to ground movement or change of plans, it is still far easier  to do so as the hollow fondation can be broken into pieces with the aid of a metal spike like I did in this trial. And the hole on the ground keeps more or less the original shape without getting bigger as it happens when removing a solid block of concrete.



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    Interesting article. It makes sense to use this method for the most secure pole installations. We perform many of these at

    I don't know. My dad and I both have set posts in the ground for both fence and buildings for many years. None ever rotted. And we always poured in concrete. Of course lumber today is crap. I doubt treated is really treated. Thus it all should go back to what our ancestors already knew. Either soak the post end in a mix of oil and kerosene. Or coat it with tar. Personally I cannot see NOT setting a barn post on a concrete pad set in the ground. Otherwise its gonna sink over time. Furthermore. The wind uplift. By pouring concrete around the post you are preventing it from uplifting. I have pulled many posts out of the ground that had concrete poured around them many years prior. None of them rotted. We reused them.

    Never would have thought of putting fence posts in this way. I can see how this would make getting a post in and out a whole lot easier. Do you have any other tricks like this to make putting up and taking down a fence easier?

    putting a fence up and taking it down easier? no really with the exception of using screws instead of nails when fixing fence panels to the posts, it makes changing or recovering the panel much easier when replacing the posts. Still every country has its own customs when doing fences. I thought of that method as I was tired of hard work and spending time breaking the concrete, so I had the bags custom made to 100x100mm section posts

    By planting the post in concrete or using a bag, you wind up holding water next to the post. This can resulting in premature rotting. Why not just put a bed of drainage material in the bottom and tamp something like rock dust in around he post? It drains after rains and you don't have any water held next to the post.

    I tried it, drainage is not enough. The problem is the constant presence of moisture and air which is essential for microorganism to prosper and damage the wood. In britain a moisted ground is pretty much the norm.

    Nice .
    Where to get large amounts of silicone? and where to get the bags from?

    bags from , you don't need a large amount of silicone about 1/2 tube per post and you can get good prices from ebay or use flexacryl which is much stickier and better but more expensive.

    Couldn't you just put the plastic bag around the post and then stick it in concrete then the concrete wouldn't bond to the post? I've never tried it, but wouldn't it make a concrete sleeve?