How Much Concrete Per Fence 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 posts does 20kg 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.”

How much sand and cement do I need for fence posts?

In terms of the ratio to use for a concreting fence posts, the best mix is a mix of 1:2:4 (1 cement, 2 sand, 4 aggregate). Concrete is always best mixed using a cement mixer to ensure it’s even, but if you only need to mix a little, hand mixing is ok (see mixing concrete project above for tips on how to do this).

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Is 1 foot deep enough for fence post?

Especially since posts are responsible for supporting the rest of the fence, including panels and heavy gates, you must make sure that you buy a long enough post for your purposes and bury it deep enough. In most circumstances, a 1foot hole will not be deep enough to provide proper support.

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.

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).

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.

Can you put Postcrete on top of Postcrete?

Just mix your postcrete on a sheet of board (to protect the existing floor whatever that is) next to your hole and sling it down the hole, you have to work pretty quick with postcrete but apart from that it‘ll work just fine.

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Should I use concrete for fence posts?

Concrete is the most secure material for setting fence posts, especially if you have sandy soil. Using premixed concrete rather than dry concrete will ensure ultimate security. While concrete is sturdy, it lacks the drainage of gravel and can trap moisture, ultimately leading to rot.

How do you keep fence posts from rotting in concrete?

Caulk Around the Fence Post Base

Apply high-quality exterior acrylic latex caulk, or silicone specifically designed to adhere to concrete, at the base of the post.

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.

Should I use 4×4 or 6×6 fence posts?

4×4 is perfect for these very standard fence dimensions. Normally 4×6 or 6×6 are needed for gates or extreme wind loads.

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.

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.

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