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

Sono Tube Calculator

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

## How many bags of concrete do I need for 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 many bags of concrete do I need for a 4 foot sonotube?

Concrete Mixes
 SONOTUBE # of bags required per: 25 kg 30 kg 8″ x 4′ tube 3.2 2.7 10″ x 4′ tube 5.1 4.2 12″ x 4′ tube 7.3 6.1

## How much concrete does it take to fill a footing tube?

45 cubic feet of concrete when mixed with 2.5 quarts of water. In order to have enough concrete for one cubic foot, you’ll require 2.2 bags of 60-lb concrete.

## How many bags of concrete do I need for a 4×8 slab?

As per calculation, for a 4×8 slab at 4 inch thick, generally you will need approximately either 23 bags of 60lb or 18 bags of 80lb of premixed concrete, at 5 inches thick slab, either 29 bags of 60lb or 23 bags of 80lb premixed concrete are required, while at 6 inches thick slab, either 35 bags of 60lb or 27 bags of …

## How many 80 bags of concrete make a yard?

how many 80lb bags of concrete are in a yard? You will need 45 bags of concrete mix to make a cubic yard of concrete.

## Do I need rebar in sonotube?

To support a beam for a residential deck, does a Sonotube pier need any rebar? A. … We usually recommend that a minimum of two pieces of #4 rebar be placed vertically in an 8-inch-diameter concrete pier supporting a structure. A larger-diameter pier should have four or more pieces of vertical rebar.

## 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.

## How many bags of cement do I need for 12×12?

of 40lb bag = 1.76 ÷ 0.011 = 160 bags. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yields, at 5 inch thick, for a 12×12 slab you will need 2.22 yards of concrete, so number of 80lb bag of concrete = 2.22 ÷ 0.022 = 100 bags, No.

## How big of a sonotube do I need?

The rule-of-thumb is to use a tube diameter 3 times the post width, therefore use a 12” diameter Sonotube for a 4×4” post.

## Can Sonotubes be left in the ground?

No, it’s not a problem to leave the Sonotube and its plastic “Square Foot” (like these) in the ground forever. Although they will slightly retard the hydration (loss of water) of the concrete mix, the concrete will achieve enough strength in a few days to build upon.

## How many cubic feet is an 80 pound bag of concrete?

60 cubic feet
30 cubic feet, 60 pounds of concrete mix yields . 45 cubic feet and an 80-pound bag yields . 60 cubic feet. One 50-pound bag of Quikrete Fast Setting Concrete Mix yields about .

## How many concrete piers do I need?

An 8 ft x 12 ft shed will need 6 piers, 3 per long side. What is this? Typically, the span between two piers is based on the dimensions of the beams and the joists. A double 2×8 beam should be supported every 4 to 6 feet.

## How far apart should piers be?

While 8 to 10 feet apart is a sufficient distance for foundation piers to support most structures that would sit atop a post and pier foundation, if the building is particularly tall or made of heavier materials such as brick or metal, it’s not uncommon to place the foundation piers even closer together.

## How deep should a concrete pier be?

Thickness. The minimum thickness for a pier is 8 inches. The minimum thickness for pier footings is 8 inches or 1-1/2 times the length of the footing projection from the pier, whichever is greater.

## Is it cheaper to build on a slab or piers?

Concrete slabs can be constructed very easily and are cheaper than pier and beam foundations. However, you should know that repairing and maintaining a concrete slab can be more expensive in the long run than taking care of a pier and beam foundation.

## What is the maximum height for a single block pier?

Single block piers cannot exceed 36-inches, measured from top of pad or footing to top of concrete block stack, including 4-inch cap block. Maximum height reduced to 24-inches at corners.

## Are piers considered a permanent foundation?

Post and pier homes, manufactured homes, modular homes, and mobile homes are just a few homes supported by piers. Furthermore, piers can be made from stacking concrete blocks. So, often you will find piers considered a permanent foundation.