Full Answer
How much concrete do I need for a 24×24 slab?
Thus, you will need 7 cubic yards or 190 cubic feet of concrete for a 24×24 slab at 4″ thick.
How many yards of concrete do I need for my project?
Many ready mix companies will have a minimum order of 1 yard, and will charge shortage fees when ordering partial batches. The average truck holds between 9 and 11 yards total. If your project requires more concrete, multiple trucks will be necessary. Rule of thumb: add 1 / 4 " to the thickness of your slab for your slab concrete budget.
What would happen if a slab is 24 feet wide?
Here you have given a slab of 24 feet in length and 24 feet in wide at 4 inches thick, it’s depend on, is this a slab on the ground or it is elevated, rules differ for both, since failure of ground slab would not kill anyone whereas failure of an elevated slab could.
How much concrete do I need for a 3x3 porch?
The total concrete needed for the 3' by 3' porch will be .28 cubic yards. (.11 + .17 cubic yards = .28 cubic yards) Repeat this for added layers of steps.
How many yards of concrete do I need for a 24x24 x4 slab?
7.11 yardsFor example, for a concrete slab that is 24' X 24' X 4”, simply enter 4 in the Thickness/Depth field, 24 in the Width field, and 24 in the Length field. Click “Calculate”. Your answer should be 7.11 yards. Note: The Concrete Volume Calculator can also be used to determine yardage for aggregate products.
How do I calculate how many yards of concrete I need?
How do I calculate how much concrete I need for a slab?Measure the area in feet.Multiply length by width, and then by thickness.Divide the resulting number by 27 to find cubic yards.
How many yards of concrete do I need for a 10x12 slab?
Regarding this, “how much concrete do I need for a 10×12 slab?”, at 4 inches thick, generally you will need approximately 1.46 cubic yards or 39.6 cubic feet (either 86 bags of 60lb or 67 bags of 80lb) of premixed concrete for a 10×12 slab, at 5 inches thick slab, 1.85 cubic yards or 50 cubic feet (either 109 bags of ...
What size slab will a yard of concrete cover?
Concrete volume is measured in cubic yards. When poured on a perfectly level surface, one cubic yard will cover 27 square feet at one foot thick.
How much does it cost to pour a 24x24 slab of concrete?
A typical 24x24 garage slab costs between $3,057 and $5,944 with prices ranging from $5.31 to $8.31 per square foot for a 4” reinforced slab of concrete, and $6.83 to $10.32 per square foot for a 6” slab of reinforced concrete.
How many yards of concrete do I need for a 10x10 slab?
1.3 cubic yardsThe amount you will need for a 10 x 10 slab is 1.3 cubic yards, we always add an extra 10% to allow for any slab depth variations or spills that may occur.
How many bags of concrete do I need for a 10x10 slab 4 inches thick?
At 4″ thick, for a 10×10 slab, generally, you will need 1.23 cubic yards or 33 cubic feet or either 74- 60lb or 56-80lb bags of premixed concrete.
How much does a yard of concrete cover at 4 inches?
81 square feetOne Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.
How do you calculate concrete for a slab?
CONCRETE CALCULATOR FORMULADetermine how thick you want the concrete.Measure the length and width that you'd like to cover.Multiply the length by the width to determine square footage.Convert the thickness from inches to feet.Multiply the thickness in feet by the square footage to determine cubic feet.More items...•
How much concrete do I need for a 12x12 slab?
Regarding this, “how much concrete do I need for a 12×12 slab?”, at 4 inches thick, generally you will need approximately 1.76 cubic yards or 47.52 cubic feet or 1.35 m3 (either 104 bags of 60lb or 80 bags of 80lb) of premixed concrete for a 12×12 slab, at 5 inches thick slab, 2.22 cubic yards or 59.90 cubic feet or ...
How much does it cost to pour 1 yard of concrete?
Concrete costs an average of $117 per cubic yard, with a typical range between $104 and $144 per cubic yard. Concrete costs an average of $117 per cubic yard, with a typical range between $104 and $144 per cubic yard.
How many yards of concrete can a truck hold?
Concrete trucks weigh an average of 25,000 lbs. by themselves and up to 40,000 lbs. when carrying a full load. Their capacity is around 8 cubic yards, but can be up to 10 cubic yards if fully-loaded.
Concrete Calculator - How Much Concrete Do I Need? - Concrete Network
Enter the thickness, width and length to find the number of cubic yards or bags of concrete needed for your project. Give these calculations to your ready-mix supplier or use them to estimate how many 40, 60 or 80 lb. bags of concrete to buy.
Concrete Calculator | Calculate How Much Concrete to Buy
Do you want to calculate how much concrete you need for your project? Our free Concrete Calculator makes it easy to find out how many yards of concrete you need. Simply enter in the desired width, length, and concrete thickness. Press calculate and you have the answer!
Should I order concrete by the yard from a ready mix company or just use bags?
Larger jobs such as driveways are easier to complete when ordering concrete by the yard, rather than trying to mix bag after bag by hand. For smaller jobs, like a walkway, modest patio or footings, you should calculate the number of concrete bags instead.
Calculating the amount of concrete needed for slabs (including odd shapes)
Rule of thumb: add 1 / 4 " to the thickness of your slab for your slab concrete budget. This assumes you have the job evenly graded to the right depth, and the grade is well compacted.
Calculating the amount of concrete needed for footings
Footings will rarely follow the drawing exactly. In rocky soil the footings may collapse when big rocks are excavated
Estimating concrete steps
Steps seem tricky to calculate but are not. If there are three steps leading up to a porch:
Calculating the amount of base fill
Granite Construction has an excellent base fill calculator on their site. Use this to figure how much material you need for the subgrade.
Requesting your ready mix supplier to visit your site
After you have chosen a Ready Mix Supplier, have a representative come to your site to give his/her opinion on the quantity required. Compare the figure with what you came up with. Discuss any variances with the supplier.
How to calculate how much concrete I need for a slab?
How do I calculate how much concrete I need for a slab? To calculate the amount of concrete you need for a slab, you should find the cubic yardage of the area you will be filling. Just follow these steps: Measure the area in feet. Multiply length by width, and then by thickness.
How much does concrete cost per yard?
How much is concrete a yard? The cost of concrete per cubic yard depends on which brand you purchase, but usually costs about $110 for bags .
How many square feet does an 80 lb bag of concrete cover?
One 80lb -bag covers an area of about 2 square feet, for a slab 4 inches thick. Two 60lb -bags of concrete cover an area of about 2 square feet for a slab that is 6 inches thick.
What factors affect the cost of concrete?
There are several things that can affect the cost of your concrete project, including: How complicated the project is: stairs will likely cost more than a slab, for example. Materials: polymer concrete is often more expensive. Labor prices: jobs that take longer and need more workers will have a higher price.
How long does it take for concrete to harden?
Here are a few common varieties of concrete: Quick-set: Hardens in 20 to 40 minutes. Best for small projects. Regular-set: 24 to 48 hour set time. Used more for large projects. High-strength: Usually sets in 10 to 12 hours.
Does adding rebar to concrete cost more?
Extra strength: adding rebar or mesh to the concrete will up the cost. Additional tasks: if pros need to remove debris, get rid of your existing patio or dig before starting, it will be more expensive.
Can you order concrete by cubic yard?
If you have a larger job, like a building a driveway or pool deck, it’s probably best to order concrete by the cubic yard or hire a concrete delivery service. For smaller jobs, like setting posts for fences or small curbs, mixing bags of concrete should be sufficient.
How much concrete is in a yard?
You might be wondering just how much concrete is in a cubic yard? A cubic yard is equal to 27 cubic feet or 46,656 cubic inches, or 45 80lb bags.
How much does it cost to install concrete slabs?
Average price of concrete. The average cost to install a concrete slab is $6 – $20 per square foot. Besides the cost of concrete and materials, there are also labor costs for preparing the area, the pour, and finishing.
What is concrete made of?
Concrete, which is a mix of water, aggregate, and cement, is most commonly sold by the cubic yard, but is also available in pre-mixed bags. It’s important to calculate the amount of material needed as accurately as possible since you often only get one chance for the pour. We’ll cover the process for estimating concrete in detail below, ...
How much does ready mix concrete cost?
Ready-mix concrete typically starts around $115 per yard but could cost upwards of $150 or more, depending on the mix and your location. Consider that there will likely be additional fees for ready-mix for smaller projects, such as delivery or short-load fees.
Can you mix concrete bags on site?
But, keep in mind that mixing bags on-site can become difficult if you’re pouring a large slab or many footings. For the most part, ready-mix concrete from a truck is more cost-effective than bags and makes sense if you have a mid-size project and can pour all at once.
What to do if you don't order concrete?
If you make a mistake and don't order enough concrete, (hopefully not) just call the concrete dispatcher and he will send another concrete truck with the balance on it. But be prepared to wait if the concrete company is busy and doesn't have a truck waiting.
Can you use a laser level on a yard stick?
Using a laser level this can be done quite easily. I use a laser level that self-levels itself when you turn it on, that way you can be sure the readings you get are accurate. For a grade stick I use a long, narrow piece of wood with a yard stick attached to it.
About concrete calculators
Our concrete calculator can help you determine how much concrete you need, the costs involved, if you require concrete bags or ready mix, a how-to formula, and the waste allowance amount.
Definition of a concrete calculator
A concrete calculator is an automated program used to estimate the amount of concrete, in volume or weight, to fill a given area. Typically in the US concrete is sold in pound bags or by the cubic yard.
How to calculate how much concrete is needed?
Determine the width, length, and depth of the area you want to concrete
Example
Mr. Calculate needs a slab of concrete covering 20 feet by 20 feet at 6 inches deep.