A typical 4x4 fence post requires a concrete sleeve about 12 inches 30cm across.
Putting fence post on concrete wall.
Step 7 wait about 4 hours to begin constructing your fence or applying heavy weight to your post.
So the wife wanted a privacy fence put up between my outdoor fireplace and my mega shed but i couldn t just attach it to the existing chain link fence so i e.
Pack the concrete to a level slightly above the surrounding soil.
You don t drop the entire 4 x4 or 5 x5 post into the wall with this method.
Then you attach an accessory called an ez bracket to the top and the bottom of the steel post.
Plan to bury of the post then allow a few inches several cm for the base beneath it.
A large post hole digger or post driver will make this job much easier.
Dig a wide hole.
Here to prevent pooling trowel the.
Mix will set hard in 20 to 40 minutes.
Step 6 pour about a gallon of water per 50 lb bag into the hole and allow the water to saturate the concrete mix.
At this point with the post set in place you can begin filling the posthole with concrete.
You take a 2 steel post and sink it into the wall.
Step 3 pour water into the dry mix and allow it to soak in.
Two 50 pound bags of fast setting concrete will set a 4 inch by 4 inch or a 4 inch diameter post in a 10 inch diameter hole 2 feet deep.