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re: How are 4x4 fence posts being set these days…

Posted on 9/8/25 at 11:13 am to
Posted by cgrand
HAMMOND
Member since Oct 2009
46163 posts
Posted on 9/8/25 at 11:13 am to
entergy uses injectable foam to set new power poles, it’s quick and effective and extraordinarily expensive. Fence contractors aren’t using foam
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
70841 posts
Posted on 9/8/25 at 12:09 pm to
quote:

plum and level?




On a contractor built fence????

Posted by Pezzo
Member since Aug 2020
2857 posts
Posted on 9/8/25 at 12:21 pm to
take this with a grain of salt, but i replaced a hurricane fence with a privacy fence and part of the fence was done differently and my theory is that one part was done with dry set and one was done with wet pour. the two sides were probably done by different companies as well. what i think was the dry pour had very solid concrete blocks that were a PITA to pull out the ground. the other portion i *think* was dry set was easily pulled up and half the block was left in the ground and crumbled away with ease.

just my experience. when i put the privacy fence i used wet pour. mixed the bags in a wheelbarrow according to instructions and poured it from there.
This post was edited on 9/8/25 at 12:24 pm
Posted by KemoSabe65
70605
Member since Mar 2018
6223 posts
Posted on 9/9/25 at 6:41 pm to
Those should break away with quickness during the next tropical storm.
Posted by 9rocket
Member since Sep 2020
1619 posts
Posted on 9/9/25 at 8:23 pm to
quote:

heated the water prior to mixing.


This will work. Same as setting tile, if you want the thinset to set faster and don’t have any speed set, heat your water. Also why thinset in the bucket will harden faster in hot weather.
Posted by Fencepimp
Brusly
Member since Jun 2022
1055 posts
Posted on 9/11/25 at 4:41 pm to
Take my word that lazy is cheaper and not the way to go.

You have to float Galv pipe and have a cap on top. The in-line look good but do not last.

Wood posts need to be treated with Cop-R-Tox where they meet concrete 24 hours before they are set .
Posted by Milescb28
New Orleans
Member since Oct 2008
218 posts
Posted on 9/13/25 at 10:58 am to
I used the foam to put in another post after Ida loosened up a post set with concrete. I’ve had no problems since. My only suggestion is if you use foam try to make the hole as close to recommended size as possible. If the hole is too big you don’t really have extra foam to secure it better.
Posted by Tiger in NY
Neptune Beach, FL
Member since Sep 2003
31333 posts
Posted on 9/16/25 at 2:54 pm to
Put the post in the hole, pour in quick set concrete, soak with hose. Go to lunch and finish the fence when you get back.
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