How many cubic feet in a yard of concrete?
To determine how many cubic feet you need for a hole, measure the length, width, and thickness together, all measured in feet. So a 4" thickness is 4"/12" or 0.333 feet. The result of this Length x Width x Thickness multiplication is cubic feet. Likewise, a cubic yard (yard = 3 feet) is a cube 3 feet by 3 feet by 3 feet or 27 cubic feet.
How do you calculate square yard of concrete?
how many square feet in a yard of concrete 4 inches thick?
- A 10' x 10' concrete slab that's 4" thick will take 1.23 yards of concrete
- A 10' x 12' concrete slab that's 4" thick will take 1.48 yards of concrete
- A 20' x 20' concrete slab that's 4" thick will take 4.94 yards of concrete
- A 24' x 24' concrete slab that's 4" thick will take 7.11 yards of concrete
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 calculate the square footage of concrete?
- Divide the space into smaller sections.
- Measure each section separately and calculate the square footage of each.
- Use a calculator to add the numbers together to get the total square footage.
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 will a yard 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 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.
What size is a yard of concrete?
how is a yard of concrete measured? There are 27 cubic feet in one cubic yard. A cubic foot measures 12 inches wide x 12 inches high by 12 inches deep.
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 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 ...
Do you need rebar for 4 inch slab?
No, rebar is not required for a 4-inch slab of concrete on grade. A 4-inch-thick slab cast on the ground and in constant touch with it will float, with no need for rebar. For concrete that is 5–6 inches thick, rebar is suggested. The thicker the slab, the more durable it will be.
How thick should a concrete slab be?
Standard 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.
Does a 10x10 concrete slab need rebar?
Do concrete patios need rebar? Even though it's possible to build a concrete patio without rebar, it's not recommended. All concrete is subject to cracks, but rebar holds all the cracks together and keeps the slab level and even. Without rebar, the cracks would become quite wide and the concrete would become uneven.
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 ...
How many yards of concrete do I need for 800 square feet?
To determine the how much concrete do I need for a 20×40 (800 sq ft) slab of 4″ thick, solve in following steps:- volume in cubic feet = 20'×40'× 0.33′ = 264 cubic foot, add extra 10% of 264 = 26.4, such as 264 + 26 = 290 cft, convert in cubic yard = 290/27 = 10.74 cubic yards, so you will need 10.74 cubic yards or 290 ...
How many yards is a cement truck?
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.
What Is a Yard of Concrete?
Many homeowners want to know how they can measure a yard of concrete. Firstly, most contractors use cubic yards to measure concrete yardage. So, they standardize their units to ensure uniformity across the board. And that way, the same yard of concrete covers the same ground no matter where you install it.
How Many Bags of Concrete Make a Cubic Yard?
You’ll need at least 45 bags of concrete if you’re trying to pour one cubic yard. Remember, a cubic yard is 3 feet by 3 feet by 3 feet. So, expect to buy some extra supplies if you want a thicker slab. And try not to mix this much material by hand because it can be cumbersome manually.
How Thick Should a Concrete Slab Be?
The average concrete slab is approximately four inches thick, give or take a few centimeters. However, new standards say that four inches aren’t quite thick enough. And that’s especially true for busy sidewalks, driveways, or patios.
Tips for Measuring a Bag of Concrete
Measuring a bag of concrete is easier than you think. It involves a simple formula that starts with finding the area in feet. Here’s how to do that:
Measure Twice, Pour Once
Calculating the required cubic yards of concrete for your slab can be difficult if you don’t know the formula. So, speak to your contractor for more information. Or measure at least twice before pouring anything even once. Here’s a concrete calculator for your convenience.
Related Questions
As of 2020, the average price for a cubic yard of concrete was about $124. So, two yards of concrete will cost around $248, depending on the type. Application methods, thickness, and timing may factor into the price as well.
How is concrete made?
Since concrete is a mixture of different compounds, so it is made by combining some of the materials together in a perfect proportion. The perfect proportion of the material is the key to make concrete durable and long lasting. First of all, the paste is prepared to form a perfect mixture.
What is bagged concrete?
Ideally, bagged concrete is great for sidewalks, patios, posts for fences/mailboxes, repairs to foundation walls, walkways, steps, small curbs, ramps, decks, pergolas, walls and more.
How is cement paste obtained?
The paste is obtained by combining cement and the water in a proper proportion which depends upon the thickness of the paste. When the mixture is coated with the small and large aggregates and then it completely dries, then it obtains a form or solid rock, which is basically called concrete.
How much does concrete cost?
The average cost of concrete is $119 to $147 per cubic yard, which includes delivery up to 20 miles. Pouring plain concrete costs $5 to $10 per square foot depending on the quality, while colored, stamped, or stained concrete costs $8 to $18 per square foot to install.
How much does it cost to install a 6" concrete slab?
A typical 6" thick concrete slab costs $5 to $10 per square foot depending on the concrete quality and project size. Decorative options such as coloring, stamping, patterns, or special finishes bring the total installation cost to $8 to $18 per square foot. However, most concrete jobs are measured in cubic yards instead of square feet.
How much does a truckload of concrete cost?
One full truckload of concrete is about 10 cubic yards and costs between $1,169 and $1,444 depending on the PSI mix. Anything less than a full truckload is considered a short load which adds $53 per cubic yard to your final price.
How long does it take for a cement truck to deliver concrete?
When you order concrete, cement trucks don't drive from house to house making deliveries. If pre-mixed, each order of concrete is mixed specifically according to the requirements of the job. Once the concrete is mixed, the driver has about 90 minutes, or 300 rotations of the truck's barrel, to deliver that load before the cement starts to set.
How much concrete can a boom truck move?
Trailer mounted pumps can move 15 cubic yards of concrete per hour, while a boom truck can run 70 to 90 cubic yards per hour. When pumping with a boom truck, add in at least 1 hour for equipment setup and 1 hour for cleanup.
How much does it cost to install concrete edge forms?
Plywood forming with stakes, nails, and form oil is required to pour concrete. Concrete edge forms for driveways and sidewalks cost $2 to $3 per linear foot to install, while forms for foundation walls, building walls, and retaining walls cost $2.50 to $6.00 per square foot of contact area.
How much is ready mix concrete?
Ready-mix concrete is pre-mixed in batches of 10 cubic yards or more and includes delivery up to 20 miles for $119 to $147 per cubic yard. The quality of ready-mix concrete is much higher than short load delivery because the concrete is precisely prepared at a mixing plant.
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.
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.
Types of Concrete
The most important consideration before buying concrete by the yard is to have a good idea of how strong it needs to be. This, of course, depends on where and how it will be used.
How Much Is a Yard of Concrete In Volume?
In terms of determining the quantity you'll need, there are online concrete calculators you can find to help you. Solving for volume is the proper way to calculate, which is simply length x width x depth.
How Much Is a Yard of Concrete In Cost?
The pricing of concrete varies widely depending on where you are and how much you order. Obviously, buying in bulk will get you a better price per cubic yard. That's because there are fixed costs to delivering your concrete, whether it's three yards or 10 yards, so there aren't any price calculators to employ.
Partner With a Professional
When figuring out how much is a yard of concrete for your next project, if you follow the above advice you'll find yourself on the right track. Yet there are many facets to consider when working with concrete that goes beyond the simple pouring process.