Quick Answer: How Do I Figure How Much Concrete I Need?

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.

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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.

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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 4inch slab of concrete on grade. A 4inch-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.

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