# Often asked: How Many Bags Of Concrete For Post Hole?

## How much concrete do I need for a post hole?

Remember, the depth of the post hole should be one-half of the above-ground post height. (Example: For a 6 feet above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground). The calculator will indicate the number of 50 lb. bags of QUIKRETE® Fast-Setting Concrete you need.

## How many bags of concrete do I need for a 3 foot post hole?

Most fence post holes will need between 1 – 4 bags of concrete to securely hold the post in place. The best way to determine the size of the hole is: Diameter of the hole is 3 times the width of the fence post. Depth of the hole is one-third to half the above ground height of the fence post.

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## How many bags of concrete do I need for a 6×6 post hole?

5cf), then buy enough bags of concrete for that amount. Buy a couple extra bags, if you don’t use them you can always return them. As I recall, a 60# bag of concrete is about. 5cf, so you’d need 3 bags per hole.

## How many posts will a 20kg bag of Postcrete do?

“Usually one bag of postcrete per post is enough, however you can use a two bags per post if you feel this is needed. The instructions are on the bag.”

## Can you put dry concrete in a post hole?

Fast-setting concrete is ideal for setting posts because there’s no mixing—you simply pour the dry concrete from the bag right into the hole, then add water.

## Is 2 feet deep enough for fence posts?

Project Instructions

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).

## How many bags of concrete do I need for a 4×4 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 do I keep my post level while concrete dries?

Fill the hole up to a depth of 8 inches from ground level with 1/2-inch drainage gravel. Use rough-cut gravel with sharp edges. It will hold the post better than smooth rock.

## How many bags of concrete do I need for a 10×20 slab?

A 60-pound bag yields. 017 cubic yards, and an 80-pound bag yields. 022 cubic yards. For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags.

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

A 6×6 post requires a 10″-diameter hole. Shovel a 6″ layer of gravel into the hole to provide drainage.

## How do you put a 6×6 in concrete?

Step-By-Step Instructions:

1. Dig the post hole, making it three times the width of the post and at a depth equal to 1/3 to 1⁄2 of the above-ground length of the post, plus 6″ (right).
2. Pour 6″ of gravel or crushed stone into the bottom of the hole.
3. Set the post in the hole.

## How do I put a post in the ground without concrete?

Procedure:

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

## Will concrete rot fence posts?

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. The concrete at the top should be sloped away from the post to grade level to avoid water pooling around the base.

## Is Postcrete better than concrete?

Concrete spurs are ideal for repairing the posts, use postcrete, sets pretty quick and you should only need 1 bag per hole. Concrete blocks will be the easiest for sitting the shed bearers on, or split them in half.

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## How long does it take for Postcrete to fully set?

No mixing is required – simply pour water into the post hole and add Postcrete. It sets quickly in 5-10 minutes and is supplied in a weatherproof, tear resistant plastic bag.