Quick Answer: How Deep Should You Dig The Holes For 1.8 M Wooden Fence Posts?

How deep is a 3m Post Hole?

For example, if you have a 3 inch wide post that you need to sit over 1.83m (6ft) in height above the ground, we recommend the hole size should be: 230mm [wide] (9”) x 600mm [depth].

This rule of thumb that can be followed for all size posts (e.g.

a 6ft high fence would require a hole depth of at least 600mm or 2ft)..

Will wooden posts rot in concrete?

A: Actually, your point is well taken. 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. … Concrete should be poured around the post – no concrete under the post.

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 4×4 post last in the ground?

If you find the RV posts I mentioned earlier, they are steel, treated and when put in concrete will last 25 years or more. It will not last long (7 yrs max) if the bottom of the post is wet. If you place stone at the base of the post, it should last 20+ yrs.

Is 18 inches deep enough for fence post?

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. … For our six-foot-high fence post, we would need a hole that’s 36 inches deep and 12 inches in diameter.

How big of a hole do I need for a 6×6 post?

about 12 inches squareFor a 6×6 post, the diameter of the holes should be about 12 inches square. As a rule the width of your post hole should never be less than 10 inches. You want holes deep and wide enough to easily support a standard 4×4 post.

How deep should a fence post hole be?

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). 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).

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 concrete for fence posts?

Setting Fence Posts in Concrete 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 do you secure a fence post without concrete?

Procedure:Find a concrete surface and lightly tamp your digging iron against it. … Remove the turf and topsoil from the site of the post. … Dig the hole putting the displaced earth onto the tarp. … Pour 4 inches of gravel into the hole.Place the post in the hole. … Add another 2 inches of gravel around the base of the post.More items…•

How deep should an 8 foot post be in the ground?

3 feetIn general, holes should be at least 3 feet deep for posts that extend 8 feet or more above ground level.

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.

How do you dig a deep post hole?

How to Dig a Hole: Pro TipsStep 1: String your line and pound the stakes. … Step 2: Carve out a soil divot with a spade. … Step 3: Loosen earth with a tile shovel. … Step 4: Use your clamshell digger. … Step 5: Use a reciprocating saw on large roots. … Step 6: Dislodge rocks with a digging bar. … Step 7: Tamp the soil with the other end.More items…

How do you keep fence posts from rotting in concrete?

The ideal solution is to eliminate contact between soil and wood. Using a metal post anchor set in concrete is probably the most effective method for achieving maximum longevity. To help keep the post from wicking water, choose an anchor that spaces the post bottom away from the concrete.

How long will a pressure treated post last in the ground?

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. But young pressure-treated decks, many less than 10 years old, are being shoveled into landfills.

How do you keep wood from rotting in the ground?

Tips for Preventing Wood RotAlways use decay-resistant or pressure-treated lumber for decks. … When building an exterior project with wood, stain or paint all sides of each lumber piece before assembly.Don’t lean anything against your siding, such as old plywood, tools, and ladders.More items…

How tall can you make a privacy fence?

Fence regulations are typically governed by local law or a homeowners’ association. In many municipalities, six feet is the maximum height for a backyard fence, while a 4-foot fence may be used in front of your home.