what is the formula for measuring concrete driveway.?

Question

12ft.wide x 225 ft.long

Answer 1

Concrete is measured by the cubic yard. A cubic yard is 3 ft long x 3 ft wide x 3 ft high. To figure the cubic yards needed for your drive way use this formula. (length x width x depth)/27. In your case 12 x 225 x the thickness of the concrete. A 6 inch deep driveway will be 50 cubic yards, a 4 inch deep driveway will be 33 cubic yards.

Answer 2

How To Measure For Concrete

Answer 3

This Site Might Help You.

RE:
what is the formula for measuring concrete driveway.?
12ft.wide x 225 ft.long

Answer 4

You'll need 33.33 cubic yards for a 4" thick driveway. You can use the concrete calculator at www.concrete.com and you enter measurements and it tells you what you need. The formula is Length times width times depth (measured like 6 inches = .5 feet)divided by 27.

Answer 5

I did the math and I know the answer but if you want to know just call the company that is going to deliver the concrete and tell them the dimensions and they will tell you.

Good Luck
Moskie257

If you poor a 4 inch slab by 12' x 225,
you multiply .33 x 12 x 225 div. by 27 you should get 33

if you poor a 6 inch slab by 12' x 225'
you multiply .50 x 12 x 225 div 27 you will get 50

Then compare with what the concrete company says.

Answer 6

I like answer one, and no offense but an example might be to visualize.

Obviously there are factors that define how THICK the pour should be, and you should research those locally with code enforcement. concrete contractors, freeze levels, etc.

Consider doing some math.

A cubic yard is 36 x 36 x 36 +/-

AT a 6 inch depth for a drive, which might be 2 inches of overkill, you;ll get 6 slabs, 36 x 36 x 6 out of that YARD. In other words 18 ft x 3 ft x 6 inches, for every YARD of concrete delivered. In doing the math, equate that to the length and width.

I'm only offering my opinion. I've been on the planet too long to stress over; or over think something as simple as Middle School math...No offense.

Steven Wolf

Answer 7

Concrete is measured in cubic yards. first measure depth ie. 6"= 1/2 ft etc. then width and length. Make sure all measurements are the same units, feet are easiest. Then convert to yards.

Example is 6" deep by 10 feet wide by 20 feet long is figured by the following: 1/2 X 10 X 20 = 100 cubic feet divided by 36 for cubic yards = 2.8 cubic yards or just "yards". Usually rounding up to 3 yards for delivery.

Answer 8

Thickness of slab, times length, times width. There are approximately 80 square feet of concrete in a cubic yard when the slab is four inches thick. The thickness of a 2x4 being 3 1/2 inches, with compression of the soil, you can figure it pretty close using that figure. If you used four inches for your thickness, you are going to need about 30 yards of concrete. There are plenty of online calculators for what you need, or the plant where you will order it from will figure it exactly for you. This is all assuming that you have a uniform, compact surface to pour onto. Good luck.

Answer 9

How thick is it going to be? It depends on what climate but usually it is either 4 inches or 6 inches.

If it is 4 inches thick then it will contain a bit over 33 cubic yards.
If it is 6 inches thick then it will contain 50 cubic yards.

One cubic yard is 27 cubic feet, NOT 36 cubic feet!

Bert

Answer 10

the way i do it for driveways, walkways, and patios is simple. For a 4" thick slab i just take the total square feet and divide by 70. I am always within 1/4 using that formula. for foundations and thicker slabs i use my calculator.