How do you figure a concrete slab?
How do you figure a yard of concrete? How do I calculate how much concrete I need for a slab? Measure the area in feet. Multiply length by width, and then by thickness. Divide the resulting number by 27 to find cubic yards. How many yards of concrete do I need for a 10×10 slab?
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 cement slab?
how do you calculate how much concrete you need for a slab? 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.
How to estimate the cost of a concrete slab?
- Concrete Slab Cost. ...
- Table Of Contents
- Concrete Slab Prices By Size. ...
- Cost of Concrete. ...
- Average Cost To Pour Concrete. ...
- Concrete Slab Foundation Cost. ...
- Concrete Slab Cost Calculator. ...
- Types Of Concrete Slabs. ...
- Pros and Cons of Concrete Slab Foundation. ...
- Staining, Stamping, and Fine Finishes. ...
How do you calculate concrete for a slab?
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...•
How many yards of concrete do I need for a 24x24 x4 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 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 concrete do I need for an 8x10 slab?
Regarding this, “how much concrete do I need for a 10×8 slab?”, at 4 inches thick, generally you will need approximately 0.98 cubic yards or 26.4 cubic feet or 0.748 m3 (either 58 bags of 60lb or 45 bags of 80lb) of premixed concrete for a 10×8 slab, at 5 inches thick slab, 1.23 cubic yards or 33.28 cubic feet or 0.942 ...
How much concrete do I need for a 24 by 24 slab?
How much concrete do I need for a 24×24 slab at 6″ thick. At 6 inches thick, generally, you will need approximately 11 yards or 288 cubic feet of ready mix concrete for a 24×24 slab.
How much concrete do I need for a 10x20 slab?
Regarding this, “how much concrete do I need for a 10×20 slab?”, at 4 inches thick, generally you will need approximately 2.44 cubic yards or 66 cubic feet or 1.969 m3 (either 144 bags of 60lb or 111 bags of 80lb) of premixed concrete for a 10×20 slab, at 5 inches thick slab, 3.07 cubic yards or 83 cubic feet or 2.35 ...
How much does it cost to pour a 10x12 concrete slab?
Cost of concrete per square footSlab SizeSquare FeetAverage Cost10x10100$60010x12120$72010x20200$1,20012x12144$86418 more rows•Jun 5, 2022
How much concrete do I need to pour 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.
How many bags of cement do I need for a 10x10 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 bags of concrete do I need for a 10x10 slab 3 inches thick?
The amount of concrete I used for this 10' x 10' slab was 2 yards. First, here's how many yards of concrete you need for a 10 x 10 slab based on how thick it is. The amount of concrete you need for a 10 x 10 slab that's 3 inches thick is 1 cubic yard.
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 much concrete do I need for a 4x8 slab?
At 4 inch thick, for a 4×8 slab, you will need either twenty three 60- pounds or eighteen 80- pounds or thirty six 40- pounds bags of concrete. Thus, either 23- 60lb or 18- 80lb or 36- 40lb bags of concrete will be required for a 4×8 slab at 4″ thick.
Concrete Slab 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.
Tips for Ordering Concrete
Quantity – Measurements can frequently be a little off, so we highly recommend ordering a little extra, because coming up short can be a disaster.
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.
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.
Why use this calculator?
In any construction work at the planning stage, it is important to correctly calculate the amount of materials needed, because it allows you to avoid problems with shortages and additional trips to the store, and also allows you to save money if you prefer to buy with a large reserve.
How does it work?
You fill in the fields: Length, Width, Thickness in the Slab Size 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.