What is the formula to calculate concrete yards?
The formula for concrete calculations is (length x width x depth) divided by 27. The result of this formula provides the number of cubic yards of concrete needed. The measurements must be in feet in order for the equation to work. Concrete is comprised of several components including water, Portland cement and aggregate, which is granular ...
What is the formula for a yard of concrete?
To produce a cubic yard of 4000 psi concrete, you have to adjust the concrete mixing ratio to:
- 611 pounds of cement or (277kg)
- 1450 pounds of sand or (657kg)
- 1600 pounds of stone or (725kg)
- 33- 35 gallons of water or (133L)
How do you figure out a yard of concrete?
Aside from style alone, few people know how to choose between stone, brick, or concrete pavers for their patio ... A standard patio ranges between $800 and $4,500, though the size of your yard and patio might dictate the materials you choose to work ...
How do you calculate concrete in yards?
- Mark the area that will need concrete and divide it into smaller areas.
- Calculate the volume of the area after determining the shape of the area (see the chart below) by multiplying in the thickness of the concrete.
- Convert the volume from feet to cubic yards to get the number of cubic yards of concrete you’ll need.
How do you calculate concrete into yards?
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 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 much concrete do I need calculator?
How to calculate concrete:Determine 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 many square feet cover a yard of concrete?
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 concrete do I need for a 24x24 garage?
Concrete Slab CostSlab TypeTypical SizeAverage CostShed10x10$670 – $930Patio12x12$796 – $1,476Driveway20x24$1,440 – $3,360Garage24x24$3,058 – $5,944
How many yards of concrete do I need for a 10x20 slab?
Regarding this, “how much concrete do I need for a 10×20 slab?”, at 4 inches thick, generally you will need approximately 2.44 cubic yards or 66 cubic feet or 1.969 m3 (either 144 bags of 60lb or 111 bags of 80lb) of premixed concrete for a 10×20 slab, at 5 inches thick slab, 3.07 cubic yards or 83 cubic feet or 2.35 ...
What is the formula for calculating concrete?
Concrete Calculator Formula For. figuring concrete yardage. The concrete calculator formula to figure cubic yards for a square or rectangle shaped concrete slab is (Length x Width x Thickness) / 27.
How do you figure square footage for concrete?
Multiply the length times the width for square footage. For instance, if you plan to pour a concrete driveway that will be 25 feet long and 12 feet wide, the square footage would be 300 square feet.
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 much will a yard of concrete cover 4 inches thick?
81 square feetOne Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.
How many yards of concrete do I need for a 2000 square foot house?
As per thumb rule and guidelines, for 2000 sq. ft. or (40×50) slab at 4 inch thickness, you will need approximately 25 cubic yards of concrete and at 5 inch thickness 31 yards of concrete you would required. Maths calculation:- 1) at 4 inch thickness, concrete quantity = 2000÷80= approx 25 cu.
How many yards of 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 ...
Estimating How Much Concrete You Need
Our calculator can estimate the yards of concrete needed by entering the project dimensions in imperial or metric measurements, including inches, f...
Estimating The Cost to Install Concrete
The average cost to install a concrete slab is $6 – $16 per square foot. In addition to the cost of the concrete itself, there are also labor costs...
Preparing to Pour Concrete
Much of the work to pour concrete is done before the truck even arrives at the project. The site must be measured and laid out. Forms must be insta...
Tips For Ordering Concrete
Call your concrete supplier and tell them about your project and what the project is. Ask them to advise you on the proper mix given your applicati...
How is concrete made?
Concrete can be purchased in multiple forms, including in 60 or 80-pound bags, or delivered in large amounts by specialized concrete mixer trucks. Proper mixing is essential for the production of strong, uniform concrete. It involves mixing water, aggregate, cement, and any desired additives. Production of concrete is time-sensitive, and the concrete must be placed before it hardens since it is usually prepared as a viscous fluid. Some concretes are even designed to harden more quickly for applications that require rapid set time. Alternatively, in some factory settings, concrete is mixed into dryer forms to manufacture precast concrete products such as concrete walls.
How long does it take for concrete to cure?
The process of concrete hardening once it has been placed is called curing, and is a slow process. It typically takes concrete around four weeks to reach over 90% of its final strength, and the strengthening can continue for up to three years. Ensuring that the concrete is damp can increase the strength of the concrete during the early stages of curing. This is achieved through techniques such as spraying concrete slabs with compounds that create a film over the concrete that retains water, as well as ponding, where concrete is submerged in water and wrapped in plastic.
Why is concrete mixing important?
Proper mixing is essential for the production of strong , uniform concrete. It involves mixing water, aggregate, cement, and any desired additives. Production of concrete is time-sensitive, and the concrete must be placed before it hardens since it is usually prepared as a viscous fluid.
What is cement used for?
Cement is a substance that is used to bind materials, such as aggregate, by adhering to said materials, then hardening over time . While there are many types of cement, Portland cement is the most commonly used cement, and is an ingredient in concrete, mortar, and plasters.
Is concrete time sensitive?
Production of concrete is time-sensitive, and the concrete must be placed before it hardens since it is usually prepared as a viscous fluid. Some concretes are even designed to harden more quickly for applications that require rapid set time.
How to find cubic yards of concrete?
Essentially you are solving for volume and then converting to cubic yards. For concrete, the formula for volume is as follows: length x width x thickness.
How many yards of concrete do you need to order?
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.
Why is it important to check the size of the concrete on your footing?
The excavator may have dug too deep, or it may have rained and footings needed to be dug out deeper to reach firm soil. So it is important to check a variety of spots on your footing and get an average size. Then use the calculator to figure the amount of concrete needed.
What is bagged concrete used for?
Bagged concrete is ideal for: Pouring small slabs for sidewalks or patios. Setting posts for fences or mailboxes. Making repairs to foundation walls, walkways or steps.
How many linear feet are there in a 6' step porch?
The porch also has 9 linear feet of 6" step. So enter in the footing calculator, 6" depth by 12" width (always figure steps with a 12" width) by 9' length. This totals .17 cubic yards.
How much to add to slab for concrete?
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.
How thick is a 12x12 footing?
This 12" x 12" footing needs to be calculated 12" x 16" so the footing is figured to go above grade to reach the 4" slab thickness.
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 Many Bags of Concrete do you Need?
Pre-mixed bags are sold by companies like Quikrete or Sakrete, and come in 40-pound, 60-pound, or 80-pound sizes.
How to convert cubic feet to yards?
Convert the volume to cubic yards from cubic feet. To do so, divide the cubic footage by 27 to get the yards of concrete needed. [1]
What is the best way to reinforce concrete?
Use rebar or fiber/steel mesh to reinforce the concrete and to prevent cracking in the future. Use our rebar material and reinforcing mesh calculators to estimate the amount of reinforcement needed for your project.
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, ...
Is ready mix concrete cheaper than bags?
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.
Do you need to measure and lay out a concrete slab?
Much of the work to pour concrete is done before the truck even arrives at the project. You’ll need to measure and lay out the site and install forms to create the edges of a slab or contain a footing.
How to calculate cubic yard of slab?
Once you find the dimensions of your slab, input them into the calculator along with the thickness. Enter your project area measurements rounded to the nearest foot. If you’d rather do the math yourself, simply measure length, width and height in feet. Then multiply these dimensions together. Divide the resulting number by 27 to find the cubic yardage.
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 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.
How many cubic yards of concrete can a truck hold?
A truckload of concrete can usually hold a maximum of 10 cubic yards.
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.
How much does concrete cost per square foot?
Across the US, homeowners report that ready – mix concrete costs about $98-99 per cubic yard.#N#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 a concrete overlay cost?
The average cost of this overlay starts at $3-5 per square foot, but can go up to as much as $12-15 per square foot depending on the complexity of colors and patterns you want.
How much does stamped concrete cost?
Costs for stamped concrete vary greatly; starting at around $8 per square foot, all the way up to $20+ per square foot. Most homeowners pay a mid-range price ...
How much does it cost to pave a 640 sq ft driveway?
Thus, to pave a 640 sq.ft. driveway with stamped concrete will cost $5,120 – $7,680. An average size 15×20 stamped concrete patio (300 sq.ft.) costs $2,400-3,600. A typical size pool deck of 800 sq.ft. will cost $8,500 – 12,000. Because there is constant exposure to water, your concrete deck will need to be sealed multiple times with special moisture-resistant sealant. A walkway of (100 sq.ft.) made with decorative concrete will run $1,000-2,500.
What is the benefit of concrete pavement?
Another huge benefit is that concrete pavement requires minimal maintenance compared to other materials. To achieve a custom look, contractors use various types of colors such as stains and powered pigments, and combine them with an array of patterns and textures.
Can you put decorative concrete over existing concrete?
Keep in mind that applying a decorative concrete overlay is only recommended if your existing concrete pavement is in good condition, without major cracks and dents.
How to calculate square footage of concrete?
Get the right length and width of the area that you want to cover. Multiply the length by width so that you can get the correct square footage. Convert the thickness of the concrete from inches to feet. After your conversion, multiply the concrete's thickness in feet by the square footage to get cubic feet.
How many yards of concrete do you need to order?
Many ready-mix companies will have a minimum order of 1 yard and charge shortage fees when ordering partial batches. The average truck holds between 9 and 11 yards total.
What is formwork construction?
Constructing formwork commonly amounts to a signification portion of the concrete work's entire cost. That's why you must first determine the formwork type that you'll use for your project before starting it. It's best to distinguish the formwork type you'll use, its installation process, and whether you'll buy or rent the form materials. Meanwhile, other associated costs can include renting equipment such as a crane to move and form materials. These machines can also create release products and re-using form material.
Why is my concrete slab dark?
There are times when concrete can also have light or dark patches because of improper installation techniques. Stains from materials such as automobile fluids and cleaning chemicals can cause it , too. So, as soon as you notice any stains or discolorations, it's best to address it as quickly as possible. Doing so will prevent the stains from seeping in and spreading throughout the entire concrete slab.
How does concrete help in building?
Concrete buildings can moderate the temperature conditions inside the building. Thus, reducing the need for heating and cooling over its service life. When combined with other technologies such as hydronic heating, concrete can boost energy efficiency by up to 70%. Versatile.
What is concrete used for?
When it comes to construction, concrete is man's commonly used material on earth. It's a crucial part of any buildings, roads, dams, and bridges. Furthermore, it also uses a range from different structural applications to drains, curbs, and paviors.
How long does concrete last?
Low maintenance. Unlike other alternative building materials, concrete can last for decades, even when it's barely maintained. Because of it, you barely have to spend anything when it comes to maintaining the concrete. Even more, it reduces your environmental footprint since you require less reconstruction to retain it.
Where to find Quantity and/or Coverage Calculations for Quikrete?
Quantity and/or coverage calculations for all QUIKRETE® products can be found on all Spec Data sheets .
How many ounces of QUIKRETE mortar joint sealant?
The calculator will indicate the number of 10.1 oz. tubes of QUIKRETE ® Polyurethane Mortar Joint Sealant or 10.1 oz tubes of Mortar Repair you will need for your project.
How deep should a post hole be?
Remember, the depth of the post hole should be one-half of the above-ground post height. (Example: For a 6 feet above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground). The calculator will indicate the number of 50 lb. bags of QUIKRETE® Fast-Setting Concrete you need.
How deep should a sandbox be?
The calculator will indicate the number of bags you will need to fill the sand box at a 2", 3", 4", 5" and 6" depth.