Cubic yard formula
- Volume in cu ft = length × width × height
- Formula for volume in cubic yard = length (in feet) × wide (in feet) × height (in feet) ÷ 27 Generally dimension of concrete slab measured in cubic feet, you ...
- 4″ depth in feet = 4/12 = 0.33 feet
How much cement to make a cubic yard of Concret?
To make 1 cubic yard of concrete, you’d need seven 94-pound bags of cement, about 1/2 cubic yard of sand and just over 3/4 cubic yard of gravel. The amount of water you use depends on how wet the sand is.
How do you calculate cubic yards of concrete?
For a square or rectangular slab:
- Measure the area in feet to get square footage
- Multiply length by width, and then by thickness
- Divide the number by 27 to get cubic yardage.
How to calculate concrete yards formula?
Concrete Yardage = L × W × H/12 × 0.037037. W – Width (ft) L – Length (ft) H -Thickness (inch) Note. This statistical concrete yardage calculator is provided for your personal use and should be used as a guide only. Construction and other decisions should NOT be based on the results of this calculator.
How much cubic feet in a yard of concrete?
There are 27 cubic feet in one cubic yard. A cubic foot measures 12 inches wide x 12 inches high by 12 inches deep. When you calculate yardage for your concrete slab, patio, floor, or driveway, you do it depending on how thick (depth) it is.
What is the formula for cubic yards of concrete?
Multiply length by width, and then by thickness. Divide the resulting number by 27 to find cubic yards.
What are the measurements of 1 cubic yard of concrete?
Most concrete purchases will be made in cubic yards, which equates to 27 cubic feet. For example, a project measuring 10 ft in length by 10 ft in width with a depth of 3.5 in will be just over 1 cubic yard. The equivalent to a single cubic yard in metric measurements would be roughly 0.76 cubic meters.
Why do you divide by 27 for cubic yards?
You must divide by 27 because 1 cubic yard equals 27 cubic feet. The answer is the total cubic yards of your area. Using the same example, divide 7,000 cubic feet by 27 to get 259.3 cubic yards.
What is the formula for estimating concrete?
Use the formula. 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 many square feet are in a cubic yard of concrete?
One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.
How many square feet will a yard of concrete cover 4 inches thick?
IN ONE CUBIC YARD OF CONCRETE - there is 81 square feet at 4 inches thick. The amount of square feet you'll get from a yard of concrete will be determined by how thick (depth) your concrete slab is.
How many yards of concrete do I need for a 24x24 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 many tons are in a cubic yard?
Cubic yards × 1.4 = US tons (approx). To get a more accurate conversion, you'll need to involve a density figure in your calculation. This is because the cubic yard is a unit of volume and the ton (or tonne) is a unit of weight.
How many 80 lbs bags of concrete make a cubic yard?
45 bagOne 80lbs bag of Quikrete Concrete Mix will yield approximately . 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete. If you have a project over a 1/2 a cubic yard you should consider our Mix On-site Concrete especially if you are hand mixing.
How do I figure cubic yards?
Multiply the three dimensions together to find the number of cubic feet (0.5 feet x 12 feet x 12 = 72 cubic feet) Divide the cubic feet by the number of cubic feet in a cubic yard (27) to find the number of cubic yards (72 ÷ 27 = 2.67 cubic yards).
How do you calculate concrete for a slab?
Length. Select unit. Meter. Feet.Breadth. Select unit. Meter. Feet.Depth. Select Depth/Height in inches. 4.5 inches. 6 inches.Grade of concrete. Select Grade of concrete. M20. M25. ... Calculate.Concrete Volume (Cubic Meter)Area of Slab (Square Meter)Cement (No. of bags)More items...
How many 80lb bags of concrete make a yard?
45 bagOne 80lbs bag of Quikrete Concrete Mix will yield approximately . 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete. If you have a project over a 1/2 a cubic yard you should consider our Mix On-site Concrete especially if you are hand mixing.
How much 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 yards of concrete do I need for a 20x20 slab?
For a 20×20×4 slab, generally, you will need approximately 4.88 cubic yards or 132 cubic feet or either 294- 60lb or 220-80lb bags of premixed concrete. Always you should purchase 5 to 10% more premixed than required.
How many yards of concrete is 24x24?
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 many bags of concrete are in a yard?
If you're using bagged concrete like Sakrete to do your project you'll need to know how many bags to get after you calculate your concrete.
How many yards is 3.93 cubic feet?
If you divide 3.93 cubic feet by 27 (3.93/27) = .146 cubic yards. Dividing cubic feet by 27 (a cubic yard) will give you the concrete yardage. This would be good to know if you had a lot of sono-tubes or a large cylinder to fill.
How much extra concrete should I add to my project?
Depending on the size of your project, it's always a good idea to add a little extra, 5% to 10%. When I order concrete, I always order 1/2 to 1 yard extra, over the years I've learned running out of concrete isn't good for me, the customer or the concrete company.
Can you use my concrete flatwork formula to check for slabs?
You can also use my concrete flatwork formula to double check results for slabs and floors.
How many feet is a cubic yard?
One yard is equivalent to 3 feet.
How high is concrete?
The height of the concrete poured is usually between 4 to 6 inches. Convert the inches into feet. The formula used is as follows, Now, calculate the volume of the total area to be covered by concrete, in cubic feet. Foundations are usually rectangular in shape and their volume can be calculated as follows.
What does the rectangle of land stare at you?
The rectangle of land stares at you, mocking your inability to gauge its depths. It needs filling, for your dream house is underway. What vexes you, however, is the exact amount of concrete required.
How to calculate cubic yards of concrete?
To calculate cubic yards of concrete, first multiply the length & width (in feet) of concrete slab to get square footage, then square footage multiply with their depth in feet to get cubic feet, then resulting cubic feet is divided by 27 to get volume of concrete slab in cubic yards.
How to find cubic yards?
The formula for number of cubic yard = length (in feet) × width (in feet) × depth (in feet) ÷ 27, simply multiply the all three dimension length, width and their depth together to find the number of cubic feet, then divide by 27 to find the number of cubic yard.
What is premix concrete?
Premix concrete is blended mix of Portland cement sand gravel and water with approved ingredient used for casting of different structure such as slab, patio, beam, column, foundation, retaining wall, ramp, sidewalk and etc. Basically concrete quantity in United States, Canada and in Imperial states, United Kingdom measured in cubic yards. So in this article we know about how to calculate cubic yards of concrete.
How many feet is a cubic yard?
A cubic yard is defined as the volume of a cube with sides of 1 yard in length or 3 feet, 36 inches, 0.9144 meters. Generally a cubic yard look like heaped of material that spreading to cover 3 feet long by 3 feet wide by 3 feet depth.
What is cubic yard?
A cubic yard means volume of concrete that cover 3 feet long by 3 feet wide by 3 feet high, it is an Imperial / U.S. customary unit of volume, very much popular and mostly used in the United States and canada.
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 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 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 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.
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 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 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.
What is crack resistant?
Crack-resistant: This is a durable option that works well for walkways.
How to find the square footage of a concrete job?
ft" or ft 2) is a measure of 2-dimensional area typically used to describe floor space. To determine your concrete job's square footage, simply multiply the length and width of the area you're pouring into without taking into account its depth.
How to calculate cubic yards of concrete?
There are 27 cubic feet in a cubic yard, so, to convert to cubic yards, we can divide by our cubic feet value by 27. The slab's volume is 39.6 / 27 = 1.47 cubic yards. Alternatively, since there are three feet in a yard, you can divide each individual foot measurement by 3 to get yard values and then multiply these together to get the same answer.
How many bags of dry concrete mix to make 1 cubic meter?
Below are rough estimates for how many bags of dry concrete mix it takes to make one cubic meter of wet concrete: 40 kg bag: 56 bags to make 1 cubic meter. 32 kg bag: 71 " " " 1 cubic meter.
How many prisms are there in a slab?
However, if you need to pour a slab along with 4 straight walls, each wall would be its own prism, resulting in a total of 5 prisms.
How is concrete volume measured?
Familiarize yourself with how concrete volume is measured. Concrete's volume (the amount of physical space it takes up) is typically measured in either cubic yards (yds 3) or cubic meters (m 3 ). A cubic yard is a 3-dimensional cube that is 3 feet long in each dimension, while a cubic meter is a cube that is 1 meter long in each dimension.
How to find concrete yardage?
Now that you've found your square footage, all you need to do to find your project's concrete yardage is to divide the square footage by a certain number - the thicker your project, the smaller the number; the thinner your project, the larger the number.
How to find odd coefficients?
If the thickness of your concrete pour doesn't match any of the examples above, you can quickly calculate it by dividing 324 by the thickness of your concrete project (in inches). Then, divide your square footage by your answer to find your project's yardage.
How many 80lb bags of concrete makes a yard?
If you’re using 80lb bags of concrete, you’ll need 45 bags to make a yard.
What does 1 yard of concrete weigh?
Concrete Weight per Cubic Yard A solid slab of concrete weighs 4,050 pounds per cubic yard.
How many yards of concrete do I need calculator?
CONCRETE CALCULATOR FORMULA 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. Convert cubic feet to cubic yards by multiplying by.037.
How much concrete do I need for a 10×10 slab?
For a 10 x 10 slab, we’d suggest a mix with a capacity of about 4,000 pounds per square inch, or psi. This is basic for residential projects, and it can withstand traffic and support heavy loads.
How many bags of cement do I need for 100 square feet?
4 bags ( 401 kg) of cement and 1593 nos bricks are required for 100 square feet 13.5 inch brick wall.
How many cubic feet is a bag of concrete?
45 cubic feet of concrete when mixed with 2.5 quarts of water. In order to have enough concrete for one cubic foot, you’ll require 2.2 bags of 60 -lb concrete.
How much is 5 cubic yards of concrete?
A full truckload of concrete generally holds 10 cubic yards, while partially filled trucks or “short loads” cost $53 per cubic yard more, or about $172 per yard. Short-Load Concrete Prices.
Calculator Use
Calculate volumes for concrete slabs, walls, footers, columns, steps, curbs and gutters. Enter dimensions in US units (inches or feet) or metric units (centimeters or meters) of your concrete structure to get the cubic yards value of the amount of concrete you will need to make this structure.
Curbs & Gutters
We calculate the volume in sections from the ground to the top of each section. The Curb and Gutter are each a section.
How Big Is a Cubic Yard of Debris?
After you’ve calculated the volume of your debris in cubic yards, it still may be difficult to picture how the dumpster size you’re choosing compares to other disposal methods, such as garbage bags, pick-up truck beds or wheelbarrows. In addition, for some types of project debris that don’t line up as easily as a flower bed, it can be difficult to measure how many cubic yards you’re going to have.
How to calculate cubic yards?
You can easily calculate cubic yardage by converting all three dimensions of your material into yards and multiplying them. For example, if you dig up a flower bed that is 9 feet long, 3 feet wide and 12 inches deep, you will have one cubic yard of dirt. This is how it breaks down: 1 3 feet equals 1 yard, so 9 feet equals 3 total yards in length. 2 The width of 3 feet equals 1 yard. 3 The height/depth is 12 inches (1 foot), which equals one-third of a yard.
How much does a cubic yard of concrete weigh?
1 cubic yard of concrete or asphalt weighs about 4,000 pounds. 1 cubic yard of drywall weighs about 500 pounds. 1 cubic yard of carpet can weigh between 2,300 - 3,200 pounds. Once you know how to measure the size and weight of your debris in cubic yards, you can confidently select the correct dumpster size for your project.
What is the difference between cubic yard and yard?
A yard measures a two-dimensional area, and a cubic yard measures three-dimensional volume, or how much a space can hold.
How many yards is 9 feet?
3 feet equals 1 yard, so 9 feet equals 3 total yards in length. The width of 3 feet equals 1 yard. The height/depth is 12 inches (1 foot), which equals one-third of a yard. Multiplying the three dimensions, length, width and height/depth, will give you the total cubic yardage of your debris.
How to convert square feet to cubic yards?
To convert square feet to cubic yards, you simply need to know the height or depth. Once you have that measurement, multiply the square footage by the height/depth in feet. Divide this number by 27 (the number of cubic feet in a cubic yard) to get a measurement in cubic yards.
How much does a yard of mulch weigh?
1 cubic yard of mulch weighs about 1,000 pounds, depending on dryness. 1 cubic yard of soil weighs roughly 2,200 pounds. 1 cubic yard of sand, gravel or stone can weigh more than 3,000 pounds. 1 cubic yard of roof shingles can weigh between 4,200 - 7,000 pounds.
