Contents

- 1 How much concrete do I need for post holes?
- 2 How many bags of concrete do I need for a 6×6 post hole?
- 3 How do you calculate concrete for a round hole?
- 4 Can you put dry concrete in a post hole?
- 5 How do I keep my post level while concrete dries?
- 6 How many bags of concrete do I need for a 4×4 post?
- 7 How big of a hole do I need for a 6×6 post?
- 8 Is 2 feet deep enough for fence posts?
- 9 How many 20kg bags of premixed concrete do you need?
- 10 How many bags of concrete do I need for a 10×20 slab?
- 11 How many 60 pound bags of concrete make a yard?
- 12 Can I pour concrete in a hole full of water?
- 13 Can I pour dry concrete?
- 14 Can I mix quikrete in the hole?

## How much concrete do I need for post holes?

**Calculate Concrete Volume**

With the **volume** of the submerged **post** and the **volume** of the **hole** figured out, subtract the **post volume** from the **hole volume**, and you will have the **volume of concrete** needed for each **hole**. Simply multiply that **amount** times the number of **posts** to get a total **quantity**.

## 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 do you calculate concrete for a round hole?

**They are 4 feet in height and 10 inches in width (diameter), or 4′ x 10″.**

- Choose
**Round**Column (or**Round**Slab) on the**calculator**. - Enter Height 4 ft (or 48 in)
- Enter Diameter 10 in.
**Calculate**and the answer is 0.08 cubic yards for one**concrete**tube.- Multiply 0.08 x 50 = 4 total cubic yards of
**concrete**for 50 tubes.

## 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.

## 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.

## 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.

## 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 20kg bags of premixed concrete do you need?

For jobs where a stronger rated concrete is needed, youmay consider our High Strength Concrete Mix for your concreting purposes. Yield: One 20kg bag will cover an area of 1.1m2 to a depth of approximately 10mm. Or **108** x 20kg bags equates to one cubic metre of mixed concrete.

## 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**.

## How many 60 pound bags of concrete make a yard?

If you’re using **60lb bags of concrete**, you’ll need 60 **bags** to make a **yard**. If you’re using 80lb **bags of concrete**, you’ll need 45 **bags** to make a **yard**.

## Can I pour concrete in a hole full of water?

The **water** in the **hole** under the pipe **can** be sucked out with a wet-dry vacuum before and during the repair job.

## Can I pour dry concrete?

1 Answer. As long as you not planning to put anything heavy on it it will be OK. **Dry pouring concrete can** have **dry** pockets were water did not get to. Usually using **dry pouring** to make a drive way for car, garage is sufficient and possibly with some light bearing structures(open steel/wood Structures).

## Can I mix quikrete in the hole?

Whether you are building a new fence, setting a mailbox or anchoring a basketball goal or play set, **QUIKRETE**^{®} Fast-Setting Concrete is the ideal product for the job. With Fast-Setting Concrete there is no **mixing** or tools required – You simply pour the dry **mix** right from the bag into the **hole**, then add water.