The diameter, on the other hand, ought to have a measurement that is equal to three times the width of the post. Therefore, the perfect hole for a normal 4×4 would be one that is twelve inches across. It is essential that you be aware that the holes in the fence posts have to be of a barrel shape with flat walls and a diameter that stays the same from the top to the bottom.

Your hole for the post should have a diameter that is three times larger than the diameter of the post.Therefore, the diameter of your post hole must be 12 inches if you intend to use a post that is either round and four inches in diameter or square and four inches in dimension.We would need a hole that is 36 inches deep and 12 inches in diameter in order to accommodate a fence post that is six feet high.

## What size post hole do I need for a fence post?

This can range anywhere from 2 inches all the way up to 12 inches. The majority of the time, poles with diameters ranging from 4 to 6 inches are placed. For these specific sizes of post holes, you will want to leave a space of four inches. That indicates that you will need a post hole that is 10 inches in diameter if you have a post that is 6 inches in diameter.

## How long should a 4×4 post fence be?

For a fence that is 5 feet high, the recommended length for a post that is 4 inches by 4 inches is 6.66 feet, or 6 feet and 8 inches. The additional length is necessary in order to accommodate the ground hole that will be dug for each post.

## How big of a hole do I need for a 4×4 post?

Instructions for the Project Dig a hole for the post with a diameter that is three times the width of the post; for example, the hole for a wood post that is four inches wide should be around twelve inches wide. The depth of the hole should be one third to one half of the height of the post above the ground (i.e., a 6-foot tall fence would require a hole depth of at least 2 feet).

## What size hole do I need for a fence post?

It is recommended that the diameter of the post hole be three times as wide as the width of the post itself. If you are creating a fence that is 6 feet high and utilizing fence posts that are 4 inches in diameter, for instance, the posts need to be 6 feet above the ground. Due to the fact that the result of dividing 6 by 3 is 2, the required depth of the hole is 2 feet.

## How much concrete do I need for a 4×4 fence post?

A fence post with a diameter of 4 inches requires a post hole that is approximately 12 inches in diameter. It is recommended that the depth below earth be approximately one third of the height of the post above ground. For instance, a hole around one foot and one half deep is required for a post that is five feet high. How Much Concrete Do I Need For A Fence Post That Is 4 By 4?

Depth | 50 Lb Bags |
---|---|

10″-14″ | 2 |

16″-22″ | 3 |

24″30″ | 4 |

32″36″ | 5 |

## How many bags of concrete do I need for a 4×4 post?

For the majority of fence post holes, between one and four bags of concrete will be required to firmly anchor the post in place. The following is the most accurate method for determining the size of the hole: The hole has a diameter that is three times that of the width of the fence post. The hole should be between one-third and half the height of the fence post as measured above ground.

## Is 8 inch hole big enough for fence post?

Therefore, the 4×4 post will most likely be able to slide into the hole that was drilled by an auger with a diameter of 6 feet.On the other hand, this leaves less than half a foot at the widest point of the post for cement or soil to be packed in to secure it.Because of this, an auger measuring between 8 and 10 feet would function considerably more effectively and give the required fill room for cement or tamping.

## How long will a treated 4×4 post last in the ground?

If the conditions in the soil and environment are good, a treated 4×4 will endure anywhere from 20 to 25 years after being buried.If you place the treated 4×4 in a cement ring rather than in the soil, that number might climb to anywhere between forty and seventy-five years.The amount of time that the four-by-four may remain embedded in the ground is contingent on a few different circumstances.

## Should wooden fence posts be set in concrete?

Concrete creates a sturdy base for wooden fence posts, but the substance also has the potential to speed up the rotting process.The posts have a better chance of lasting for a longer period of time when they are buried in dirt, with or without the addition of gravel or crushed rock, depending on the kind of soil.In addition, you may lengthen the life of the fence posts by using metal anchors.

## Should pressure treated posts be set in concrete?

The rate of decay will be reduced when the posts are pressure treated.The problem of the decaying posts can be solved in three different ways.To begin, the posts should be positioned on top of a bed of coarse gravel that is between three and six inches deep.This will ensure that the base of the post is in direct touch with the gravel.Only the area surrounding the post should be filled with concrete; the area under the post should be left empty.

## How far apart do you set fence posts?

The majority of fence posts can have a spacing of between 8 and 12 feet between them.Although this is a generic criterion, it does not take into account every possible situation.For instance, a high tensile fence might have wider spacing, needing line posts every 15 to 20 feet for field fence types and as much as 20 to 30 feet for high tension barbed and smooth wire.Another example is that a high tensile fence can be smooth or barbed.

## What is the best concrete mix for fence posts?

The Quikrete Fast Setting Concrete Mix that comes in a 50-pound bag is, in my experience, the best concrete mix for using with fence posts. It has a pressure of 4,000 psi, is simple to deal with, hardens quickly, and does not require mixing. Simply pour it into the opening, then soak it with water.

## How do you calculate concrete post holes?

A good rule of thumb to follow when determining the size of the hole to dig is to use a hole diameter that is three times the diameter of the post, and to dig the hole to a depth that is one-third the height of the post. The typical price is $115 per yard 3, however this number might vary significantly depending on the type of concrete, the dealer, and the region.

## How do you figure concrete holes?

To determine the number of cubic meters required to fill a circular hole

- EXAMPLE: How much concrete is required to fill five holes that are 1200 millimeters in depth and 1050 millimeters in diameter?
- ANSWER: The volume of one hole is 1.039 cubic meters
- Thus, the volume of five holes is equal to five times 1.039, which is 5.195. (say 5.2 cubic metres)
- NOTE: If the diameter of a hole is increased by one half, then four times as much concrete will be required