Here is how you use the concrete calculator formula: Step #1: The first thing you need to do is to determine how thick you want the concrete to be. Enter the diameter and height of your concrete column to calculate the number of cubic yards and concrete bags needed to complete your project.

Use this to figure how much material you need for the subgrade. Explore other calculators related to housing or building, as well as hundreds of other calculators addressing finance, math, fitness, health, and more.

Knowing how much concrete is needed for a job is incredibly important. The porch also has 9 linear feet of 6" step.

Calculate the true width. Let’s say that the driveway you want to build has 10′ X 10′. For concrete, the formula for volume is as follows: length x width x thickness. In this step, you need to go back to step 1 and convert the thickness you want the concrete to be from inches to feet. Then, when you want to find out how many concrete bags you need to order, all you need to do is to divide the total cubic yards bu the yield. • Discuss any variances with the supplier. Figure driveway 14' x 20' and your estimate will be good. You may need to download version 2.0 now from the Chrome Web Store.

Here is how you use the concrete calculator formula: The first thing you need to do is to determine how thick you want the concrete to be. Why Is It So Important To Use The Concrete Calculator Formula? Steps seem tricky to calculate but are not. concrete calculator formula: (length x width x depth) divided by 27 =# of cubic yards example: 18 feet long, 18 feet wide, 6 inches deep this would be: (18 x 18 x .5)/27 = 6 cu.yards While some projects require more compact concrete, others require more diluted concrete. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. If you check your grade and one spot is 4", some spots are 4.5" to 5"-the best solution for both the job quality and your concrete budget is to fix the grade. For each calculation you will have to know the dimensions of your object. However, realize you are doing your job a service by ordering enough concrete - which means you are going to have a little concrete left. •

Figure depths and widths as they have been built on the site, not simply what the plans say.

Square and Rectangular Areas. If your project requires more concrete, multiple trucks will be necessary. A 20 cubic yard order with 1 cubic yard left over is a good order. Include a margin of safety. Concrete Contractors: Get Job LeadsFind out how Concrete Network is different from other lead services. Our mix-on-site concrete calculation is based on batching by volume (Large construction sites employ batching by weight which is more exact). Press calculate and you have the answer! Two of the most important ones include an extra charge from the concrete supplier (as well as since you will only need a small amount of concrete, you may end up paying more for the transportation than for the concrete itself), and the fact that a cold joint can occur. Our free Concrete Calculator makes it easy to find out how many yards of concrete you need. Concrete is one of the materials that is commonly used when you have a building project.

Copyright 1999-2020 ConcreteNetwork.com - None of this site may be reproduced without written permission, Calculate concrete slab and footing pours and get estimating tips. So it is important to check a variety of spots on your footing and get an average size. 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. The average truck holds between 9 and 11 yards total. The total concrete needed for the 3' by 3' porch will be .28 cubic yards. However, one of the things that most people don’t know if how to actually use the concrete calculator formula to calculate the amount of concrete that they need. Your IP: 163.172.227.14 Discover the best online calculators you can use for free. This totals .11 cubic yards. Use our concrete calculator to help you determine how much concrete you need for your project.

Then use the calculator to figure the amount of concrete needed.

Learn how to correctly calculate how much concrete mix you will need for your job. Use this free concrete calculator to determine how much concrete you need. Never try to order the exact amount of needed concrete. In rocky soil the footings may collapse when big rocks are excavated. Use this free concrete calculator to determine how much concrete you need. So enter in the footing calculator, 6" depth by 12" width (always figure steps with a 12" width) by 9' length. So, we can say that when you are using the concrete calculator formula, you need to multiply the length by the width by the thickness. Footings will rarely follow the drawing exactly. A 20 cubic yard order that comes up cubic yard short is not a good order.

After you have chosen a Ready Mix Supplier, have a representative come to your site to give his/her opinion on the quantity required. Here’s what the math looks like for a 10’ by 10’ concrete patio: Essentially you are solving for volume and then converting to cubic yards. Learning how to calculate the amount of concrete needed is easy when using our concrete formula and online concrete calculator.

A rented mixer can be very helpful, but a wheelbarrow works for just a few bags. While you may assume that you just need to order some more and that the costs involved are only related to the extra time you need to complete the project, there are other costs.

This was supposed to be a 12"*12" footing, but note how the left side of the footing has collapsed.

(.11 + .17 cubic yards = .28 cubic yards). Odd shapes: Transform odd shapes into rectangles and odd shapes are suddenly easy to figure. If there are three steps leading up to a porch: This porch has 9 sq. You can also estimate the quantity of sand and gravel required by weight; Simply multiply the volumetric quantity of sand and gravel with 1400 kg/m 3 (bulk density of sand) and 1600 kg/m 3 (bulk density of stone) respectively, when calculating in metric units. Let’s take a look at a practical example. Many ready mix companies will have a minimum order of 1 yard, and will charge shortage fees when ordering partial batches.