Substrate type affects fence post depth.
Chain link fence post hole depth.
Dig the hole using the post hole diggers to about 2 feet 4 inches.
The deeper you dig the holes the more stability your fence has so you d better purchase some longer posts.
Check the depth of your holes each time you dig or mark your auger to the proper depth.
6 to 8 inches for end and corner posts 4 to 6 inches for line posts and 1 3 of the length of the pole plus 4 inches for gravel.
If your fence posts are 8 feet high then 2 1 2 feet of the posts should go from the bottom of the post hole to the plumb.
Most people use the same material for the fence panels as they do for posts but chain link or diamond mesh fences are also options.
For example if you are erecting a 6 foot high fence using 4 inch fence posts the posts need to be 6 feet above the ground.
Moreover you also need to trim off 1 foot in length to accommodate the height of the chain link fence panels.
The most common materials used for fence posts are wood aluminum and pvc.
Make sure the mark you made earlier is at ground level.
Be cautious of dirt falling back into the hole after digging.
This will cause unnecessary hand digging.
Before you dig be sure to call your local utilities company to mark any underground cables.
Correct post hole shape.
Step 1 depending on the geographical location fence height and fencing materials used post hole size may vary.
In general for residential chain link fences dig holes 6 in diameter by 30 deep or below frost line in your area.
Fill all the holes with 4 inches of gravel and tamp.
As the post is 4 inches wide 3 multiplied by 4 is 12 so the hole needs to be 12 inches square.
The depth that you should consider digging the fence post holes is between 2 and 3 feet deep.
6 divided by 3 is 2 therefore the depth of the hole required is 2 feet.
Holes should also be dug 10 12 inches wide or about 3 times the width of the post.
Set the line post in place against the layout line adjust it for plumb and temporarily support it in place with braces.
Add gravel to the bottom of the post hole for drainage.
Chain link fabric height 2 depth of post in ground total post height.
Preparation of the hole and its depth are the same regardless of the post material used.
How do i know what height to set my post.
If your fabric is to rest on top of grade this is the industry standard for setting chain link fence posts.