The amount of concrete you need for a 10 x 10 slab that's 3 inches thick is 1 cubic yard. A 10 x 10 slab that's 4 inches thick needs 1.25 cubic yards or (56) 80lb bags of concrete A 10 x 10 slab that's 5 inches thick needs 1.6 cubic yards or (72) 80lb bags of concrete
Full Answer
How to calculate concrete needed to pour a slab?
The best way to calculate how much concrete you will need in cubic yards is to do the following:
- Mark your area that needs concrete and divide it into smaller areas.
- Calculate the volume of your area after determining its shape (see the examples below) by multiplying it with the thickness of the concrete.
- Convert the volume from feet to cubic yards to get a precise number of concrete that you need – in cubic yards.
How do you calculate concrete cost?
Concrete cost per square foot. Expect to pay between $4.25 and $6.25 per square foot to have a plain concrete slab poured. To get an even better idea of how much your project will cost, get quotes from local contractors that can come see the site. Use our concrete calculator to calculate how many yards you'll need for slab and footing pours.
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
How to calculate amount of concrete needed?
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
- Convert cubic feet to cubic yards by multiplying by .037
How many bags of concrete do I need for a 8x10 slab?
Regarding this, “how many bags of concrete do I need for a 10×8 slab at 4 inch thick?”, its depend on thickness of slab, at 4 inches thick, generally you will need approximately either 58 bags of 60lb or 45 bags of 80lb (0.98 cubic yards or 26.4 cubic feet or 0.748 m3) of premixed concrete for a 10×8 slab.
How many bags of concrete do I need for a 10x10 4 slab?
At 4″ thick, for a 10×10 slab, generally, you will need 1.23 cubic yards or 33 cubic feet or either 74- 60lb or 56-80lb bags of premixed concrete.
How many yards of concrete do I need for a 10x10 pad?
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 bags of concrete do I need for a 10x10 slab 3 inches thick?
The amount of concrete you need for a 10 x 10 slab that's 3 inches thick is 1 cubic yard.
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 ...
How much does an 80lb bag of concrete cover?
80 lb bag of concrete yields 0.60 cubic feet which is approximately around 0.0222 cubic yards that will cover around 3.6 sq ft area up to standard depth of 2 inch excavation or backfills, and for 1 cubic feet of landfill you will need 1.66 bags of 80 lb concrete.
How big of a pad will 10 yards of concrete cover?
How much does 10 yards of concrete cover. 10 cubic yards of normal weight or mix or crushed concrete will cover approximately 1080 square feet at 3 inches deep, or 800 square feet with 4 inches thick, or 650 square feet with 5 inches deep, or 540 square feet at 6 inches deep.
Does a 10x10 concrete slab need rebar?
Rebar is not necessary for every concrete project. The general rule of thumb is that if you are pouring concrete that is more than 5 inches in depth, you are probably going to want to add in some rebar to help reinforce the entire structure.
How do I calculate how much concrete I need for a slab?
For concrete, the formula for volume is as follows: length x width x thickness....Here's what the math looks like for a 10' by 10' concrete patio:10 x 10 = 100 square feet.4 ÷ 12 = .33.100 x .33 = 33 cubic feet.33 x .037 = 1.22 cubic yards.
How many bags of concrete do I need for a 4x4 slab?
How many bags of concrete do I need for a 4×4 slab at 4 inch thick?”, its depend on thickness of slab, at 4 inches thick, generally you will need approximately either 12 bags of 60lb or 9 bags of 80lb (0.20 cubic yards or 5.28 cubic feet or 0.15 m3) of premixed concrete for a 4×4 slab.
How many square feet does a 50 lb bag of quikrete cover?
A 50 lb bag of concrete approximately cover around 1.5 square feet area upto standard depth of depth of 3 inch for your patio and sidewalk.
How much does a 60 lb bag of concrete cover?
A 60 lb bag of concrete is premixed of cement, sand and gravel as concrete which yields 0.45 cubic feet volume that is approximately equal as 0.017 cubic yards and it will cover around 1.8 square feet area of upto standard depth of 3 inch for your Patio or sidewalk.
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.
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:
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.
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.
The Math
The good thing about the math is that once you learn how to use the conversions, you can use it for any future projects, not just a 10 x 10 concrete slab, but slabs with other dimensions as well.
The 10 x 10 Slab
This all may sound confusing, but I’ll walk you through the process of finding out the volume of a 10×10 concrete slab using the same method mentioned above.
Which Ready Mix Bag?
Each concrete manufacturer has slightly different ways of developing their concrete, but they’re not much different from each other. The only thing you need to look out for is the psi of the concrete mix you plan on buying. for a 10 x 10, professionals recommend a psi of 4,000.
how many bags of concrete are in a yard?
The table below shows you how many bags of concrete you need to make a yard based on the size of the bagged concrete.
how to mix bagged concrete for a 10' x 10' slab
Most bags of concrete take about 4 to 5 quarts of water to mix for each bag.
what type of bagged concrete is best for a 10' x 10' slab?
The best type of bag concrete mix to use for a 10x10 slab is 4000 psi or 5000 psi mix.
