Footing rebar calculator

Calculating rebar for a foundation project is as important as calculating concrete for the footings. If you guess at the amounts, you may end up with too much rebar and push your project over budget. Or you may end up with too little, which will render your project useless and underdeveloped.

The average do-it-yourselfer can successfully calculate rebar amounts for foundations by following a few tried-and-true methods. Calculate the total number of linear feet of your foundation. For example, if your foundation is 30 feet wide and 40 feet long, then add all the sides together to get the total footage.

Determine the amount of rebar needed for the footings. Generally, one stick of rebar per 8 inches of footing width will suffice. If your footings are 16 inches wide, you will need to add two sticks of rebar along the width of the footing; however, if your footings are 24 inches wide, you will need three sticks. For example, if your footings are total feet long and your footings are 24 inches wide, then multiply feet times three. You will get feet.

This is how much vertical rebar you will need for your inch footers. Because rebar comes in foot pieces, divide by 20 and you get 21 sticks of rebar. Determine how much rebar for your foundation walls. Your foundation walls will require that every four feet be filled with concrete and rebar. If you have feet of wall, just divide feet by 4 and you get This will be the amount of block cells that will be filled with concrete and rebar; however, you will need to determine the lengths of the rebar.

If your foundation is 32 inches, then multiply 32 inches times 35 slots and you get the total number of inches of rebar you need, which is 1, inches. You will then need to convert that to feet, which is 1, divided by 12 equals You will need five sticks of 20 foot rebar for the vertical runs, as well.

Add step-up rebar to your total figures for your foundation.Enter the depth, width and length of your concrete slab to calculate the number of cubic yards and concrete bags needed to complete your project. Enter the depth, width and length of your concrete footing to calculate the number of cubic yards and concrete bags needed to complete your project.

Enter the diameter and height of your concrete column to calculate the number of cubic yards and concrete bags needed to complete your project. Concrete Contractors: Advertise with us. Concrete, Pouring and Pricing:. Use this free concrete calculator to determine how much concrete you need. Knowing how much concrete is needed for a job is incredibly important. Learn how to correctly calculate how much concrete mix you will need for your job.

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. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield.

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. A rented mixer can be very helpful, but a wheelbarrow works for just a few bags. 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. This assumes you have the job evenly graded to the right depth, and the grade is well compacted. If you check your grade and one spot is 4", some spots are 4. Odd shapes: Transform odd shapes into rectangles and odd shapes are suddenly easy to figure.

Figure driveway 14' x 20' and your estimate will be good. Here is why: The driveway is 16' at the top and 12' at the bottom. Through the center the width averages 14'. Footings will rarely follow the drawing exactly. In rocky soil the footings may collapse when big rocks are excavated.

Calculate the true width. 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.

House slabs on grade that are 8" out of grade with a 4" slab also have some of the footing above the grade too. 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.

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This porch has 9 sq. This totals. 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. The total concrete needed for the 3' by 3' porch will be. Granite Construction has an excellent base fill calculator on their site.The Rebar Calculator contains equations and data used in working with reinforcement bars rebar in concrete slabs.

The formulas calculate materials needed for rectangular, circular and irregular shaped slabs. When the dimensions of your slab or wall exceed the length of a single piece of rebar, it is required to lap and tie rebar pieces to create the added length.

This is called Lapping, and the length of the overlapping rebar is the Lapping Length. There are a few considerations.

footing rebar calculator

First, the length of the lap is specified by a "Lapping Factor LF " which is often 40 times the diameter of the rebar. See these YouTube videos to better understand rebar lap:. The Rebar in a Wall function also computes the size of the forms. Concrete forms are a vital part of construction. It give you the choice of specifying whether you want to compute:. The term rebar is short for reinforcement bars, and refers to bars of steel embedded in concrete to improve tensile strength.

The Rebar Calculator is now available in Spanish. It has Spanish language descriptions, labels and diagrams and it also has default units in the metric system SI. The lengths are in meters and centimeters, the areas are in square meters, the volumes are in cubic meters, and the weights are in kilograms and metric tons.

Calculadora de Barras de Refuerzo. Sorry, JavaScript must be enabled. Change your browser options, then try again. Reinforcement Bar rebar Functions.See also: Concrete slab calculatorStrip foundation calculator. Feet: Inches: Type 1 Type 2. Type 3 Type 4. A pier or beam basement usually consists of reinforced concrete posts or piles widening to their lower part and connected by a framework.

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The framework distributes loads of a structure. Actually, it is used to strengthen a construction This type of construction helps to resist soil expansion and large loads. Posts or piles are located in points of intersection, corners, under heavy and bearing walls, beams and other important structures. Piles are obligatory in all places with bigger loads. This online app provides the pier and beam foundation calculation and gives the preliminary expenses needed to construct this type of a basement.

The output data will include necessary amounts and prices of the following construction materials like rebar, sand, macadam, cement. The application will use the entered data as the base to develop drawings of your future project. First, you have to select a type of a grillage. There are two possible options of piles to choose from. There are also two variants of their base shape: round or rectangular. In several minutes you will know the pile footing size, amount of concrete and other materials needed.

The whole construction and design can be done by our calculation app. If a pile has a circular section, then we do not consider the latter parameters in the calculations. S — If this parameter is indicated, then the calculation will be done for the piles which are evenly distributed under the whole structure.

If it is not indicated, then the calculation will be performed only for the piles, which are set in the perimeter of a basement. When the calculation of the load distribution structure is not required, you may not indicate these parameters.

Then you set the proportions. The figures will differ in every separate case.

HOW TO CALCULATE THE STEEL QUANTITY IN COLUMN FOOTING

These parameters will depend on the construction methods to be applied, sizes of the sand and macadam and the cement brand. You may specify this information requesting it from manufactures or suppliers of construction materials. If you include prices for construction materials, the pier foundation cost calculator will do for you a preliminary estimation of the planned expenses you will pay for your project.

You will also get drawings including a general layout and a pile calculation design. You will make use of it when properly designing the basement of a house. To do the calculations will not take too much time, because this online programme can release you from a long and time-consuming estimation process. You only have to follow the instruction given in detail. I can not see where the pier is calculated using a known load.

footing rebar calculator

Am I missing it? Looking for a pier calculator using a known dead and live load amount such as a beam to post to pier. Any suggestions? Name Required.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 roundthe length in inches which you can leave blank if roundand then press calculate.

Learning how to calculate how many cubic yards of concrete you need before pouring is very easy with our concrete calculator. Try it out now and then be sure to check out our other online calculators! 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!

footing rebar calculator

But if you want to know the exact formula for calculating concrete footing then please check out the "Formula" box above. 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!

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Click the "Customize" button above to learn more! Calculator Pro Calculators. Depth in inches:. Width in inches or diameter if round :.

Rebar Calculator

Length in inches leave blank if round :. Need multiple calculators? Not what you're looking for? Create a free account to access the embed code for the Basic version of this calculator! User Information Already have an account?

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footing rebar calculator

Concrete Footing Definition Our Concrete Footing Calculator makes it easy to do concrete footing calculations in just moments. 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!

Love our Calculators?Bar Bending schedule plays a vital role in the construction of High rise buildings. It is very important to learn Bar Bending Schedule for finding out the quantities of Steel reinforcement required for every component of the building. To avoid this, high rise building orders reinforcement steel as per requirement.

After the completion of footings they go for next order and so on. For this, I considered a footing plan as below. Footing Details F1, F4, F7 is Plain footing 1. We use different types of mesh reinforcement in footings as per design. You can refer different types of Reinforcement used in footings from here. Plain mesh is adopted for F1, F4, F7 footings.

The dimensions of Footing F1 are 1. To find out the length of bars we have to deduct the cover from footing Refer Fig. As per the condition the concrete cover for the mesh is 0.

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So, The length of X bar is 0. Deduct 0. Hook Mesh is used in Isolated footings. The dimensions of Footing F3, F8 are 0. The length of X bar is 0. Length of Bars: —. Hook Mesh is used in Step footing. The dimensions of Footing F2 are 0. Type of Mesh :- Upto the depth of footing. The dimensions of Footing F5 are 0. Adopt Dia 16mm 80mm X Bars.

Adopt Dia 16mm 80mm in Y bars. Coming soon estimation steel reinforcement in Columns, Slabs, Septic tank, Water tank. You can also read Different types of Columns in construction.

Sharing is Caring:. For Instant updates Join our Whatsapp Broadcast. Stay tuned! More are updated Soon!!. With a good subject knowledge in civil engg i have started this blog to share valuable information to fellow civil engineers.If you are building a post and beam structure like a pole barn or a pier you can use spot footing. Most buildings, including residential homes, are built on a continuous spread footing. Refer to the Minimum Width of Concrete or Masonry Footings reference to determine the width of the footing required.

If you are building on sand, you will need to use spot footing, as the sand will not allow the continuous spread footing to disperse the weight of the building across it. Some municipalities have specific dimensional requirements that must be met for construction. Please contact your county office for these requirements. Some municipalities require permits.

Contact your county permit office for information on these permits. A footing is what the exterior walls of the building sits on. The footing disperses the weight of the building over a wider area and helps prevent settling.

Estimation of Mat reinforcement

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 building would sit on.

The first thing you need to do is determine what type of footing you are going to pour; spot footing or continuous spread footing. This is determined by the structure being built and the type of soil on which it is being built. See Tips. Spot footing is generally a 2' by 2' square which is " deep. First you need to convert all of your measurements to feet. Do this by dividing the depth by 12". Second you multiply all dimensions to determine the cubic feet of concrete required.

Multiply this number by the number of posts you will be supporting with the spot footing. Concrete is generally sold in cubic yards. Since the measurement is currently in cubic feet, you need to convert that to cubic yards. Do this by multiplying the cubic feet by. Continuous spread footing is generally 16" to 24" wide, running the length of the exterior walls and 6" to 16" deep. Do this by dividing the width and depth by 12". Concrete used for this type of footing must be between 2, and 5, psi in compression.

A third and less frequently used footing is the grade beam footing.

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It is essentially a continuous spread footing with spot footing where the soil is not satisfactory to disperse the load of the building over. To calculate grade beam footing first calculate the continuous spread footing required, then calculate the required spot footings and then add together the cubic yards of concrete to determine the amount of concrete required for this type of footing.

Christy Flora has been writing professionally for more than fifteen years after winning her first awards for writing in the early 's.

Pier foundation calculator

With a degree in Education, specializing in Organizational Leadership, Flora is an experienced, and published, author and editor. As a writer Flora has worked as an instructional designer spanning the genres of informational, educational and technical. Hunker may earn compensation through affiliate links in this story.

Tip If you are building a post and beam structure like a pole barn or a pier you can use spot footing. Warning Some municipalities have specific dimensional requirements that must be met for construction. Step 1 Spot footing is generally a 2' by 2' square which is " deep. Step 2 First you need to convert all of your measurements to feet.

Step 3 Second you multiply all dimensions to determine the cubic feet of concrete required. Step 4 Multiply this number by the number of posts you will be supporting with the spot footing. Step 5 Concrete is generally sold in cubic yards. Concrete used for this type of footing must be between 3, and 5, psi in compression.


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