Contents

- 1 How many bags of concrete does it take to fill a sonotube?
- 2 How many bags concrete do I need calculator?
- 3 How many cubic feet does an 80lb bag of concrete cover?
- 4 How many bags of concrete do I need for a 4×4 post?
- 5 How many cubic feet are in a 60 pound bag of concrete?
- 6 How much does a 25kg bag of concrete cover?
- 7 How many bags of concrete do I need for a 10×20 slab?
- 8 How many yards are in a 50 pound bag of concrete?
- 9 Can you pour concrete directly on dirt?
- 10 How many bags of concrete can a mixer hold?
- 11 How many cubic feet is a 90 lb bag of concrete?
- 12 Is 2 feet deep enough for fence posts?
- 13 How many bags of concrete do I need for a post hole?
- 14 Do you need gravel under concrete?

## How many bags of concrete does it take to fill a sonotube?

16 cubic feet / 0.6 cubic feet / **per bag** = 27 (80#) **bags of concrete** mix.

## How many bags concrete do I need calculator?

To determine **how many bags** of **concrete** you will **need**, divide the total cubic yards **needed** by the yield. Use the following yields per each **bag** size: 40 pound **bag** yields.011 cubic yards.

## How many cubic feet does an 80lb bag of concrete cover?

A **80 lb**. **bag** provides 0.6 **cubic feet** of cured **concrete**. If you have **concrete** delivered it is sold by the yard (which **is a cubic** yard = 27 **cubic 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 many cubic feet are in a 60 pound bag of concrete?

Each 60-pound bag of QUIKRETE® Concrete Mix will yield approximately **0.45 cubic feet** of mixed concrete.

## How much does a 25kg bag of concrete cover?

As a rule of thumb 1 of our **25kg bags will cover** an area of 0.25m to a recommended depth of 50mm.

## 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 yards are in a 50 pound bag of concrete?

If you’re using 50lb bags of concrete, you’ll need 72 bags to make a yard. If you’re using 60lb bags of concrete, you’ll need **60** bags to make a yard.

## Can you pour concrete directly on dirt?

Long story short, yes **you can pour concrete** over **dirt**.

## How many bags of concrete can a mixer hold?

Heavy-duty paddles mix the **concrete** to a uniform consistency. This **concrete mixer can** fit up to two **bags of concrete**.

## How many cubic feet is a 90 lb bag of concrete?

Each **90**–**pound bag of QUIKRETE**® **Concrete** Mix will yield approximately 0.675 **cubic feet** of mixed **concrete**.

## 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 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**.

## Do you need gravel under concrete?

Whether **you** pour **concrete** for a walkway or patio, a strong **gravel** base is required to prevent the **concrete** from cracking and shifting. **Gravel** is especially important in clay soil because it doesn’t drain well, which results in water pooling **under** the **concrete slab** and slowly eroding the soil as it finally drains.