Once you ve finished digging your post holes add about three to four inches of gravel into the bottom and compact it using a post or a 2x4.
Best concrete for vinyl fence posts.
Otherwise stop filling the holes with concrete about 4 in.
If you want to keep grass from growing around the posts trowel mounded concrete slightly above grade so water will drain.
Best vinyl recommends using concrete to install fence posts for a number of reasons.
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.
Sakrete fence post mix is not recommended for any other structural applications.
One of the biggest reasons is the consistency of the vinyl fence installation.
Setting fence posts in concrete set fence posts in fast setting concrete if you re planning to leave the fence in place for a long time or if you have very loose sandy soil.
When installing the vinyl fence posts into the ground it is important to know that soil is never uniform and will change over time.
You may add fast set accelerator to expedite curing time.
Use sakrete fence post mix to set below grade fence posts.
Although few do it yourselfers relish the prospect of a weekend spent mixing hundreds of pounds of concrete and digging numerous post holes most can handle a vinyl fence installation.
Plan to set at least one fourth to one third of the fence post underground and dig the hole accordingly.
The depth of the hole should be 1 3 1 2 the post height above ground i e a 6 foot tall fence would require a hole depth of at least 2 feet.
First dig the holes using an auger or a post hole digger.
Below grade and pack in soil on top of the wet concrete.
Installing a vinyl fence.
Dig post hole so diameter of the hole is 3 times the width of the post i e the hole for a 4 wood post should be about 12 inches wide.
Then set your post in place and use a level to ensure that it s perfectly.
Fast setting concrete is ideal for installing fence posts since it doesn t need to be mixed in a bucket or a wheelbarrow.
Inspect your posts at least once a year ideally in spring or fall and reapply paint or stain as necessary to protect the wood and keep your fence looking its best.
Use enough water to saturate the dry mix.
Plan your fence and follow the rules.
Fence post mix is designed specifically for anchoring fence posts.