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 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.

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

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).

How many bags of Postcrete do you need per post?

You’ll need to bury the posts at least 2ft In the ground. As for how many bags of postcrete you need per post, that’s purely dependant on how big you make the post holes. As a rule of thumb, when using standard post hole diggers, I average 1 bag per post. For larger holes I would allow 1.5 bags to 2 bags per hole.

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. Under normal curing conditions, you can apply heavy weight to the post (a basketball backboard, for example) after just 4 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 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.

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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.

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.

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

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

The treated post that are rated for ground contact are guaranteed for 40 years.

What is the easiest way to dig post holes?

How to Dig a Hole: Pro Tips

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

What is the difference between Postcrete and concrete?

Concrete takes several hours or a day or two to set. Postcrete sets in a few minutes, several tens of seconds, even, so you don’t have to support the post for nearly as long as you do with concrete.

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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.

Should you put gravel under fence post?

Gravel is best for fencing in heavier (more clayey) soils, and won’t work well if you have loose, sandy soil. Gravel also allows water drainage around the fence posts, making the posts less susceptible to frost heaves. When setting fence posts in gravel, you should bury at least one -third of the fence post.

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