Calculating concrete yardage for a footing is done much like a slab, you just usually have smaller units of measurement for width. Example: Width 18", Depth 8", Length 50' (convert inches to feet) Volume in Cubic feet = 1.5 x.66 x 50 = 49.5 cubic feet Volume in Cubic yards = 49.5 ÷ 27 = 1.83 cubic yards
Full Answer
How to calculate concrete for a footing?
The Drip Cap
- A footing is what the exterior walls of the building sits on.
- There are two main types of footings; spot footings, which the posts of a building or a pier would sit on, and continuous spread footing, which the frame of the ...
- Second you multiply all dimensions to determine the cubic feet of concrete required. ...
How do you calculate concrete yards?
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 to calculate concrete for footings?
Concrete Footing Calculator. To use the Concrete Volume Calculator, simply enter the width, length, and thickness of your pour. The calculator will automatically estimate the number of cubic yards of concrete that will be required. Concrete is ordered by volume in cubic yards.
How do you estimate yards of concrete?
Steps to Calculate Cubic Yards of Concrete
- Measure the length, width, and height of the slab, footing, or column. ...
- Convert dimensions to feet if they aren’t already. ...
- Multiply the width times the length times the height (W × L × H), or use our volume calculator to find the cubic feet.
- Convert the volume to cubic yards from cubic feet. ...
How do you calculate concrete for a footer?
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...•23-Apr-2018
How do you calculate footings?
How to Calculate Footing SizeDetermine the width and length of the cement slab in inches.Divide the width by 12 to convert it to feet. ... Divide the length by 12 to convert it to feet. ... Determine the depth or thickness that is required for the footing in inches. ... Multiply the width by the length and then by the depth.
How many bags of concrete do I need for a footing?
In order to have enough concrete for one cubic foot, you'll require 2.2 bags of 60-lb concrete. Since bags are only sold in whole (not half, or quarter) quantities, you'll need to purchase three (3) 60-lb. bags for one cubic foot.
How do you calculate concrete yards for foundation?
Take the length in feet times the width and height of the wall to figure your cubic footage. Then divide that figure by 27 to get your cubic yards (because there are 27 cubic feet in a cubic yard).07-Feb-2018
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 80 bags of concrete make a yard?
If you're using 80lb bags of concrete, you'll need 45 bags to make a yard.
How many square feet is a yard of concrete 4 inches thick?
81 square feetOne Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.
What is the size of a standard footing?
Footing width can vary according to the structure, site, and conditions. Under code, generally, one-story buildings with footings on undisturbed soil with LBVs between 1,500 and 4,000 should have a minimum width of 12 inches. Two-story buildings require a minimum of 15-inch wide footings for 1,500 LBV soil.20-Dec-2021
What is concrete mixed into?
Alternatively, in some factory settings, concrete is mixed into dryer forms to manufacture precast concrete products such as concrete walls. The process of concrete hardening once it has been placed is called curing, and is a slow process.
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.
Concrete Footing Definition
Our Concrete Footing Calculator makes it easy to do concrete footing calculations in just moments. If you want to know how many cubic yards of concrete you need to pour then simply enter in the desired depth in inches, width in inches (or the diameter if round), the length in inches (which you can leave blank if round), and then press calculate.
How to Calculate Concrete Footing
Let's be honest - sometimes the best concrete footing calculator is the one that is easy to use and doesn't require us to even know what the concrete footing formula is in the first place! But if you want to know the exact formula for calculating concrete footing then please check out the "Formula" box above.
Add a Free Concrete Footing Calculator Widget to Your Site!
You can get a free online concrete footing calculator for your website and you don't even have to download the concrete footing calculator - you can just copy and paste! The concrete footing calculator exactly as you see it above is 100% free for you to use.
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.
How thick should concrete footings be?
Concrete footings typically have a required thickness of 6” to 10”. If you’ve done your homework and checked your local building codes, you’ll be able to find out how thick your footings need to be in order to remain compliant. Just add water.
How many bags of concrete for one cubic foot?
In order to have enough concrete for one cubic foot, you’ll require 2.2 bags of 60-lb concrete. Since bags are only sold in whole (not half, or quarter) quantities, you’ll need to purchase three (3) 60-lb. bags for one cubic foot. One 80-lb bag of concrete yields .60 cubic feet when combined with 4 quarts of water.
How much does concrete cost?
Typically, concrete is sold in pre-mixed 60-lb. and 80-lb. bags. Most 60-lb. bags of concrete have a retail value of between $3.10 and $3.50, although you may be able to buy it cheaper in-bulk. An 80-lb. bag of concrete can cost between $3.50 and $4.00 per bag.
What is the difference between concrete and cement?
The words “concrete” and “cement” are often used interchangeably, however, they are two very different things. Concrete is a mixture of cement and other items, such as sand or gravel. Cement is an ingredient in concrete and is the “glue” that helps hold the mixture together. Once concrete hardens, it can be used to create stairs, sidewalks, ...
How long does it take for concrete to set before attaching post?
Allow time to cure. Give your concrete approximately 24 hours to set before you attach the post base or install the weight of the posts.
Can you mix concrete bags?
Bags of concrete come pre-mixed, which means you simply add water and mix it in a wheelbarrow or portable mixer. Once mixed, all you need to do is pour it into various forms to create patios, footers, or walls to lay a foundation for your deck. Buy a little extra. We recommend buying slightly more concrete that what you think you need in case you ...
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.