# How much concrete does a sonotube hold?

## How much concrete does a sonotube hold?

A 12 inch sonotube requires 1.74 60 lbs. or 1.31 80 lbs. bags of concrete to fill it one foot. That’s . 029 cubic yards or 104 lbs.

## How do you calculate concrete for Sonotubes?

How many bags of concrete do I need to fill an 8-inch Sonotube?

- Find the volume of a 1′ high 8″ diameter column: Volume = π × (8 in)² × 12″ / 4 = 603.2 in³ ≈ 0.3491 ft³
- Calculate the equivalent weight of the column: Weight = 0.3491 ft³ × 150 lb/ft³ = 52.3599 lb ≈ 23.75 kg.
- Determine how many bags you need:

**How many bags of concrete do I need for sonotube?**

Concrete Mixes

SONOTUBE | ||

# of bags required per: | 25 kg | |

8″ x 4′ tube | 3.2 | 8″ x 8′ tube |

10″ x 4′ tube | 5.1 | 10″ x 8′ tube |

12″ x 4′ tube | 7.3 | 12″ x 8′ tube |

**How much rebar is in a 12 sonotube?**

What is this? Either way, your sonotubes should be a minimum of 12” in diameter and have a piece of #3 rebar running down the center, at a minimum. You can choose to add rebar as you see fit.

### How much concrete do I need to fill an 8 inch sonotube?

Concrete Requirements Size Chart

Diameter (in.) | Height of Column | |
---|---|---|

6 | .022 | .117 |

8 | .039 | .206 |

10 | .061 | .323 |

12 | .087 | .466 |

### How do you calculate concrete in a cylinder?

The base area of a concrete cylinder is equal to its volume divided by its height. Say a concrete cylinder has a volume of 340 cubic inches and a height of 12 inches. Its area will then be 340 in³ / 12 in = 28.33 in² .

**How much concrete is in an 8 sonotube?**

**How much concrete does it take to fill a 10 inch sonotube?**

Based on the fixed diameter and depth (or height) of the sono tubes for a project, our customers can get an accurate calculation of the amount of ready-mix concrete needed to fill that sono tube. For example, a sono tube with a 10″ diameter and a 4′ depth requires 0.08 cubic yards of concrete.

#### What size sonotube for a deck?

A good size for a common backyard deck is a 10″ or 12″ diameter for the sonotube and a 20″ base diameter. Of course, you can get a 24″ base size and it will spread weight over an even greater surface area. The one down side to this is the extra digging involved.

#### How do you calculate concrete volume?

For concrete, the formula for volume is as follows: length x width x thickness….Here’s what the math looks like for a 10′ by 10′ concrete patio:

- 10 x 10 = 100 square feet.
- 4 ÷ 12 = .33.
- 100 x .33 = 33 cubic feet.
- 33 x .037 = 1.22 cubic yards.

**How do you calculate concrete in a circle?**

Two methods for calculating the area of a circle

- You can do the pi*r2 method, where pi = 3.141592…, r = the radius of the circle, and squared is squared.
- Or, you can shortcut to a ratio: a circle within a square box occupies 78.5% of the space.

**How much concrete do I need for a deck post?**

You’d be shocked at how many bags of concrete mix you’d have to mix by hand to fill a form tube. Figure concrete volume by multiplying the height of the post and column in feet by the radius of the tube in feet squared times 3.14. Divide the total by 27 to get the cubic yardage you need to order.

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

Quick Attached Deck Footing Chart

Size of Deck | Beam Size | Number of Footings |
---|---|---|

10′ x 12′ | (3) 2×8 | 2 |

12′ x 12′ | (2) 2×6 | 3 |

16′ x 16′ | (3) 2×8 | 3 |

20′ x 12′ | (2) 2×8 | 3 |

## How much weight can a 12 inch sonotube hold?

Sonotube Round forms are designed for 12 feet of full liquid head, ie: 12 feet x 150 psf/ft = 1,800 psf. Sonotube Commercial and Finish Free are designed for 20 feet of full liquid head, ie: 20 ft x 150 psf/ft = 3,000 psf.

**How do you calculate volume of steel in concrete?**

Calculate Steel quantity in slab as 1% of volume of concrete = 0.01× 7850× 1= 78.50kg:- according to using Thumb Rule Steel quantity required for RCC slab should be 1% of total volume of concrete, here steel density = 7850 kg/m3, so quantity of steel in 1m3 of concrete slab = 0.01× 7850× 1= 78.50kg, so, therefore 78.50 …

**How do you calculate footing volume?**

Example Footing Calculation

- Volume = H/3 (A1+A2+(√A1 x A2)
- A1 = 2 x 1.5 = 3 Sqm.
- A2 = 0.5 x 0.3 = 0.15 Sqm.
- H = 0.15m.
- Now Volume = 0.15/3 x (3+0.15+(√3 x 0.15)
- = 0.05 x (3.15+0.67)
- = 0.19 m3
- Volume (V) = 0.19 m3

### How do you calculate the volume of a pier concrete?

### How do you calculate concrete for a cylinder?

Volume of a cylinder column and concrete cylinder weight calculation….To know how much concrete you need to fill a cylinder mold:

- Measure the inner diameter and height of your mold.
- Take the volume of the mold using this equation: volume = π × diameter² × height / 4 .

**How much concrete do I need to build a sonotube?**

You can refer to it whenever you want the count for your sonotube (all sizes). Keep In Mind: (1 cubic feet of concrete = 133 lbs concrete AND 1 cubic yard of concrete = 27 cubic feet concrete) First of all, you need to determine the Volume of a concrete bag of any size, such as 40 lbs, 50 lbs, etc.

**What is a sonotube calculator?**

Since concrete is sold in cubic yards, the sonotube calculator is a very helpful tool that will help you ensure you purchase the right amount of concrete needed to fill the volume of the tube.

#### How to pour concrete deck footings and sonotubes?

How to pour concrete deck footings and sonotubes. 1 1. Dig the holes. Depending on your type of soil, there are several different options for digging your holes. You can use a post hole auger, which is 2 2. Frame the footings. 3 3. Pour the footings and add rebar. 4 4. Pour the sonotubes. 5 5. Backfill the sonotubes.

#### How do you use cardboard sonotubes for footings?

Pour the sonotubes The next day once the footings were mostly dry, we put the cardboard sonotubes over the rebar, centred them in the footings and under the string lines, and made sure they were level. Then we also braced them in both directions using 2″ x 4″s.