What Is The Minimum Depth For A Fence Post?

Is 3 feet deep enough for fence posts?

The general rule of thumb when setting a post is that the depth of the post’s hole needs to be one-third to one-half of the actual above-ground height of the post.

So, a six-foot-high finished post ideally needs to be buried three feet into the ground..

Should I use concrete for fence posts?

Concrete is the most secure material for setting fence posts, especially if you have sandy soil. Gravel may be okay with dense, clay-heavy soil, but in looser soil, concrete is the only thing that will truly keep your fence posts stuck in place.

How deep should a 6 foot fence post be?

2 feetThe 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).

How deep should post be for 8 foot fence?

The depth of the post hole needs to be 1/3 to 1/2 the height of your fence. For example, if you are building a fence that’s 6 feet tall, you will need a hole that is at least 2 feet deep. That also means that you’d need to use an 8-foot post. The hole will need to be about 3 times the width of your post.

Will wooden posts rot in concrete?

Simply setting the posts in concrete does create a condition that will accelerate rot in the bottom of the posts. With pressure-treated posts, the rot will be slow. … First, the posts should be set on top of a bed of coarse gravel 3 to 6 inches deep, so the base of the post is in contact with the gravel.

How do I keep my post from rotting in the ground?

You can protect cedar posts by soaking the ends in a bucket filled with copper napthenate (Jasco, Copper Green Wood Preservative and others). It takes time for the chemical to fully penetrate, but a soaking treatment will deter pests and water rot for years.

Can I build an 8 foot fence?

Adding a fence extension can create up to 8 feet of height for your fence.

How long will wooden posts last in concrete?

5-8 yearsThe guy who originally put them in says they typically ‘go’ between 5-8 years and is recommending I replace with concrete posts at considerable extra cost.

How deep should a 5 foot fence post be?

Dig deep. Measure the post and plan on burying at least a third of it. For a 5-foot fence, you’d want an 8-foot post and you’d need a 3-foot hole. Don’t cheat by cutting the post shorter.

Can fence posts be 10 feet apart?

Most fence posts can be spaced 8 to 12 feet apart. While this is a general criteria, it doesn’t cover all scenarios. For instance, high tensile fence can have larger spacing, requiring line posts every 15 to 20 feet for field fence styles, and as much as 20-30 feet for high tensile barbed and smooth wire.

How many bags of concrete do I need for a fence post?

Mix two 50lb bags of concrete with water in a mixing tub or 5-gallon bucket. Add concrete into the hole and around the 4” x 4”. Depending on your climate, let concrete set up for 24 – 48 hours.

How long will pressure treated posts last in the ground?

3) A deck built with pressure treated wood will last a long time. Promotional literature promises lifelong performance for pressure treated wood. The Forest Products Laboratory and other research groups have shown that treated wood stakes placed in the ground for more than 40 years remain rot-free.

Is 2 feet deep enough for fence posts?

The minimum depth that you should dig your fence post holes for panel sections is 2 feet. A general formula is to dig the holes one-third to one-half of the post’s aboveground height. The deeper you dig the holes, the more stability your fence has, but you must also purchase longer posts.

Should I use 4×4 or 6×6 fence posts?

Instead of 4×4 posts, go with 6×6 posts. The extra size makes a huge difference. It’s a smart place to invest a little extra in your fence, because if your posts distort after they have been set in the ground with concrete, they are extremely difficult to replace.

Is 1 foot deep enough for fence post?

You should always bury one-third of your fence post underground. … This means that unless you are building a 2-foot fence, which is unlikely in any garden, a 1-foot hole will not be deep enough to support your post. For main and gateposts, you should dig the holes an additional 6 inches deep.