# Quick Answer: How Do You Estimate A Concrete Slab?

## How many bags of concrete do I need for a 10×10 slab?

For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags.

If we add an extra 10%, that’s an extra 8 60-pound bags or 6 80-pound bags.

Whatever the size of your project, use the formula above to calculate how much concrete you’ll need!.

## How much would a 4 inch slab of concrete cost?

If you can determine the area of your concrete project (length x width for rectangular projects) and know the thickness of the slab, you can use the information in the Concrete Volume Calculator below to determine how much concrete you need. One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.

## How much is a 15×15 concrete slab?

Concrete Slab Prices By SizeSlab SizeSquare FeetAverage Cost Installed8x864\$39510×10100\$61712×12144\$88815×15225\$1,3886 more rows

## How many bags of concrete do I need for a 12×12 slab?

Enter the size of the slab you want to build in square feet. The calculator will indicate the number of 60 or 80 pound bags of QUIKRETE® Concrete Mix you need to build a 4″ or a 6″ slab. (All yields are approximate and do not include allowance for uneven subgrade, waste, etc.)

## What is the difference between a concrete slab and a cement slab?

Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is basically a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. Concrete gets stronger as it gets older.

## How do you calculate the cost of concrete?

Across the US, homeowners report that ready – mix concrete costs about \$98-99 per cubic yard. The average cost of a concrete slab (6 inches thick) is \$5.00-5.50 per square foot, including materials and labor. However, the price can go up to \$9-10 per square foot depending on numerous factors and enhancement costs.

## How much does it cost to do a concrete slab?

Concrete slabs typically cost about \$6 per square foot, or between \$4 and \$8 per square foot including labor. That’s about \$5,400, or between \$3,600 and \$7,200 for a typical 30- by 30-foot slab that’s 6 inches deep. Materials alone cost about \$4 per cubic foot.

## 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.

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

Each 80 lb bag of QUIKRETE® Concrete Mix yields approximately 0.6 cu ft. Therefore, for a cubic yard, you will need 27 cubic feet of concrete, or 45 80-pound bags. Yields will vary with waste, uneven subgrade, etc.

## How thick should a concrete slab be?

4 inchesStandard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.

## Is it cheaper to pour concrete yourself?

One of the least expensive ways to get concrete is to mix your own. You can buy bags of the mix from a home improvement store. Typically, you only have to add water for it to be ready to pour. However, it is important to get the ratio right and to mix the concrete thoroughly.

## How much is a 10×20 concrete slab?

How much does a 10×20 concrete slab cost?Concrete Slabs CostsZip CodeBasicBestConcrete Slabs – Installation Cost\$450.00 – \$535.00\$1080.00 – \$1295.00Concrete Slabs – Total\$635.00 – \$740.00\$1337.00 – \$1584.00Concrete Slabs – Total Average Cost per square foot\$6.88\$14.61May 13, 2020