Contents

- 1 How much concrete do I need for a sonotube?
- 2 How many bags concrete do I need calculator?
- 3 How deep should Sonotubes be?
- 4 How many bags of concrete do I need for a deck of footings?
- 5 How many bags of concrete do I need for a 4×4 post?
- 6 Do you leave sonotube in ground?
- 7 How much does a 25kg bag of concrete cover?
- 8 How many bags of concrete do I need for a 10×20 slab?
- 9 How many 20kg bags of concrete are in a cubic meter?
- 10 How many posts do I need for a 12×16 deck?
- 11 Should deck posts be set in concrete?
- 12 How much concrete goes in a post hole?
- 13 How many bags of concrete do I need for a 6×6 post?
- 14 How much volume does an 80lb bag of concrete cover?

## How much concrete do I need for a sonotube?

For example, a **sono tube** with a 10″ diameter and a 4′ depth requires 0.08 cubic yards of **concrete**.

## 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 deep should Sonotubes be?

Brace securely at top, middle and bottom of tube. There is no pour rate restriction below the joint, but you CANNOT pour a full liquid head up to 20 feet when using a “Joined” Finish Free Tube if the joint is below the 20 foot level.

## How many bags of concrete do I need for a deck of footings?

In order to have enough concrete for one cubic foot, you’ll require **2.2 bags** of 60-lb concrete. Since bags are only sold in whole (not half, or quarter) quantities, you’ll need to purchase three (3) 60-lb. bags for one cubic foot.

## 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.

## Do you leave sonotube in ground?

No, it’s not a problem to **leave** the **Sonotube** and its plastic “Square Foot” (like these) in the **ground** forever.

## 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 20kg bags of concrete are in a cubic meter?

**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 posts do I need for a 12×16 deck?

A standard **deck** will need four footings parallel to the house, but they will need to be temporarily braced by 6 inch-by-6 inch **posts**.

## Should deck posts be set in concrete?

There are several ways to **set deck posts**; we recommend attaching the **posts** to **concrete** footers above the ground. This helps to prevent wooden **posts** from rotting. **Set** footers a minimum of 6” below the frost line for your area to prevent movement during freezing temperatures.

## How much concrete goes in 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**.

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

As I recall, a 60# **bag of concrete** is about. 5cf, so you’d need 3 **bags** per hole.

## How much volume does an 80lb bag of concrete cover?

**bag** provides 0.45 **cubic feet** of cured **concrete**. 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**).