How do I calculate how much concrete I need?

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.
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Here’s what the math looks like for a 10′ by 10′ concrete patio:
  1. 10 x 10 = 100 square feet.
  2. 4 ÷ 12 = .33.
  3. 100 x .33 = 33 cubic feet.
  4. 33 x .037 = 1.22 cubic yards.

How many yards of concrete do I need for a 24×24 x4 slab?

7.11 yards
For 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 do I calculate how much concrete I need for countertops?

Calculating Concrete Countertops
  1. Determine the thickness of your concrete slab.
  2. Multiply the length and width to determine square footage. …
  3. Convert the thickness from inches to feet.
  4. Multiply the thickness in feet by the total square footage to determine cubic feet.
  5. Divide by 27 to convert cubic feet to cubic yards.

How much cement do I need for a 12×12 slab?

Regarding this, “how much concrete do I need for a 12×12 slab?”, at 4 inches thick, generally you will need approximately 1.76 cubic yards or 47.52 cubic feet or 1.35 m3 (either 104 bags of 60lb or 80 bags of 80lb) of premixed concrete for a 12×12 slab, at 5 inches thick slab, 2.22 cubic yards or 59.90 cubic feet or …

How much concrete will 10 yards cover?

Regarding this, “how much concrete do I need for coverage?”, with a standard thickness of 4 inches, normal weight concrete, generally you will need 12.5 cubic yards of concrete for 1000 square feet coverage, for 500 sq ft coverage you will need 6.25 cubic yards of concrete, for 600 sq ft coverage – 7.7 cubic yards of …

How many yards of concrete do I need for a 10×10 slab?

1.3 cubic yards
The 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 quikrete do I need for a 10×10 slab?

The thickness of your 10′ x 10′ slab will determine just how many bags you need. The average thickness of a 10′ x 10′ concrete slab for a shed is 4 inches thick. At 4″ thick, your 10 x 10 slab will take 56 bags of concrete that weigh 80 lbs.

How many bags of concrete do I need for a 10×8 slab?

Regarding this, “how many bags of concrete do I need for a 10×8 slab?”, at 4 inches thick, generally you will need approximately either 58 bags of 60lb or 45 bags of 80lb of premixed concrete for a 10×8 slab, at 5 inches thick slab, either 73 bags of 60lb or 56 bags of 80lb premixed concrete are required, while at 6 …

How much does it cost to pour a 24×24 slab of concrete?

A typical 24×24 garage slab costs between $3,057 and $5,944 with prices ranging from $5.31 to $8.31 per square foot for a 4” reinforced slab of concrete, and $6.83 to $10.32 per square foot for a 6” slab of reinforced concrete.

How much area does a 40 lb bag of concrete cover?

Regarding this, how much does a 40 lb bag concrete cover, as 133 lb concrete = 1 CF, so a bag of 40 lb concrete = 40/133 = 0.30 CF, therefore, a 40 lb bag concrete approximately cover around 1.8 square feet area upto depth of 3 inch.

How much area will a 60 lb bag of quikrete 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.

How much area does a 50 lb bag of quikrete cover?

Regarding this, how much does a 50 lb bag concrete cover?, as 133 lb concrete = 1 CF, so a bag of 50 lb concrete = 50/133 = 0.375 CF, therefore, 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 many bags of concrete do I need for a 4×8 slab?

As per calculation, for a 4×8 slab at 4 inch thick, generally you will need approximately either 23 bags of 60lb or 18 bags of 80lb of premixed concrete, at 5 inches thick slab, either 29 bags of 60lb or 23 bags of 80lb premixed concrete are required, while at 6 inches thick slab, either 35 bags of 60lb or 27 bags of …

How thick do I need my concrete?

Place concrete at a minimum thickness of 4 inches. Increasing the thickness from 4 inches to 5 inches will add approximately 20% to your concrete cost, but will also boost your driveway’s load-carrying capacity nearly 50% , according to the Tennessee Concrete Association.

How many bags of concrete is 3.5 cubic feet?

I have a mixer that is advertised as being 3.5 cubic feet. My experience is that this mixer will handle up to two 60 pound bags or one and a half 80 bags at a time; anything more, and mix will spill out of the mixer when it is trying to mix the mix. 120 pounds of concrete mix makes about 0.9 cubic feet of concrete.

How many cubic feet is an 80 lb bag of concrete?

60 cubic feet
45 cubic feet and an 80-pound bag yields . 60 cubic feet. One 50-pound bag of Quikrete Fast Setting Concrete Mix yields about . 375 cubic feet.

How many square feet is a yard of concrete 4 inches thick?

81 square feet
One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.

How many bags of concrete do I need for 100 square feet?

Number of cement bags are required for 100 sqft 6 inch slab = 11.4 bags.

How many bags of concrete do I need for 9 cubic feet?

Our 9 cubic feet concrete mixer is perfect and small to medium-sized concrete jobs. It transports easily with ball or pintle hitch capabilities. Heavy-duty paddles mix the concrete to a uniform consistency. This concrete mixer can fit up to two bags of concrete.

How many bags of concrete do I need for a 4×4 slab?

As per calculation, for a 4×4 slab at 4 inch thick, generally you will need approximately either 12 bags of 60lb or 9 bags of 80lb of premixed concrete, at 5 inches thick slab, either 15 bags of 60lb or 11 bags of 80lb premixed concrete are required, while at 6 inches thick slab, either 18 bags of 60lb or 14 bags of …

How many cubic feet are in a 60 pound bag of concrete?

0.45 cubic feet
Each 60-pound bag of QUIRKETE® Concrete Mix yields approximately 0.45 cubic feet.

How many cubic feet is a bag of concrete?

Regarding this, “how many cubic feet are in a bags of concrete?”, it’s depend on bag size and their weigh in pounds, generally each 60lb bag of concrete mix will yield approximately 0.45 cubic feet when mixed, thus there are 0.45 cubic feet in a bag of 60lb concrete.

How many square feet does a 60 lb bag of concrete cover?

@ 2″ thick a 60 lb bag of concrete will fill 2.7 sq. ft. @ 4″ thick a 60 lb bag of concrete will fill 1.35 sq. ft.

How many bags of concrete make a cubic foot?

In order to have enough concrete for one cubic foot, you’ll require 2.2 bags of 60-lb concrete. Since bags are only sold in whole (not half, or quarter) quantities, you’ll need to purchase three (3) 60-lb. bags for one cubic foot.