Contents

- 1 What is the formula for calculating concrete?
- 2 How much quikrete do I need calculator?
- 3 How many square feet will 3 yards of concrete cover?
- 4 How many bags of concrete do I need for a 10×20 slab?
- 5 How much does 2 yards of concrete cost?
- 6 What is the correct mix for concrete?
- 7 How much area does a 80lb bag of quikrete cover?
- 8 Can you pour concrete directly on dirt?
- 9 How much quikrete Do I need to fill a 5 gallon bucket?
- 10 How many bags of cement do I need for 100 square feet?
- 11 How much is 4 yards of concrete cost?
- 12 How much concrete do I need for a post hole?
- 13 Do you need rebar for 4 inch slab?
- 14 How many bags of concrete do I need calculator?
- 15 How many bags of concrete do I need for a 6×6 post?

## What is the formula for calculating concrete?

**Calculating** the volume for **concrete** requires using three dimensions: length times width (which is area) times the height (thickness) or L x W x H. If you are using feet as your standard unit of measurement, this **formula** will give you the volume of **concrete** in cubic feet.

## How much quikrete do I need calculator?

Assume a 10-by-10-foot square area with **concrete** 4 inches thick. When you multiply 10 by 10 by. 333 feet, you get 33.333 cubic feet. Divide the total cubic feet **needed** by the total cubic feet that can be made from one bag of **Quikrete Concrete** Mix.

## How many square feet will 3 yards of concrete cover?

**One Cubic** Yard of Concrete: 4-inches thick – covers **81 square feet**. 5-inches thick – covers **65 square feet**. 6-inches thick – covers 54 square feet.

## 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 much does 2 yards of concrete cost?

According to the NRMCA – Ready Mixed **Concrete** Industry Data Survey, the **average cost** of **concrete** in 2018 was $120 per cubic yard, or $240 for the **2** cubic **yards** needed for a typical 10-by-10-foot patio.

Bulk **Concrete Prices**.

Cubic Yards |
Price Range |
---|---|

1* | $140-$200 |

2* |
$280-$400 |

3* | $420-$600 |

4* | $560-$800 |

## What is the correct mix for concrete?

In terms of the ratio for concrete, it depends on what strength you are trying to achieve, but as a general guide a standard concrete mix would be 1 part cement to 2 **parts sand** to 4 **parts** aggregates. For foundations, a mix of 1 part cement to 3 **parts sand** to 6 **parts** aggregates can be used.

## How much area does a 80lb bag of quikrete cover?

4 sq feet in that amount of cement.

## Can you pour concrete directly on dirt?

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

## How much quikrete Do I need to fill a 5 gallon bucket?

Your **5 gallon bucket** is 0.7777850 cubic feet dry. You will **need** 2 – 50lb bags of **Quikrete** Fast Setting **Concrete** Mix to complete your project.

## How many bags of cement do I need for 100 square feet?

Ans.:- 7.6 no of **cement bags** (381.30 kgs) are required for **100 sq ft** rcc roof slab 4 inch thick m20 grade concrete. Ans.:- 7.6 **bags** (381.30 kgs), 9.5 **bags** (476.10 kgs) & 11.4 **bags** ( 570.8 kgs) **cement** are required for **100 sq ft** rcc roof slab 4 inch, 5inch & 6 inch thick respectively in m20 grade of concrete.

## How much is 4 yards of concrete cost?

Each cubic **yard of concrete costs** $119 to $147 per cubic **yard** delivered.

Short-Load **Concrete Prices**.

Cubic Yards |
Mixing On-site Fees |
---|---|

4 – 4.75 |
$80 |

3 – 3.75 | $90 |

2 – 2.75 | $100 |

1 – 1.75 | $110 |

## How much concrete do I need for a post hole?

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 need rebar for 4 inch slab?

No, **you do** not **need rebar** for a **4**–**inch slab** of concrete on grade. A **4**–**inch**-thick **slab** cast on the ground and in permanent contact with it will float and **rebar** is not required. **Rebar** is recommended on concrete measuring 5 – 6 **inches** thick.

## How many bags of 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. 60 pound bag yields.017 cubic yards.

## 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.