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.
What is the formula for calculating concrete?
Use the formula. Calculating the volume for concrete requires using three dimensions: length times width (which is area) times the height (thickness) or L x W x H. If you are using feet as your standard unit of measurement, this formula will give you the volume of concrete in cubic feet.
How do you figure a yard of concrete 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 much cement do I need for a 12x12 slab?
Regarding this, “how many bags of concrete do I need for a 12×12 slab?”, at 4 inches thick, generally you will need approximately either 104 bags of 60lb or 80 bags of 80lb of premixed concrete for a 12×12 slab, at 5 inches thick slab, either 131 bags of 60lb or 100 bags of 80lb premixed concrete are required, while at …How many yards of concrete do I need for a 24x24 x4 slab?
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.
How thick does a concrete slab need to be?
Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.
How much concrete is needed for a 10x10 slab?
Regarding this, “how much concrete do i need for a 10×10 slab?”, generally you will need 1.23 cubic yards of premixed concrete for a 10×10 slab at 4 inches thick, at 5 inches thick you will need 1.54 cubic yards of concrete and at 6 inches thick – 1.85 cubic yards of concrete.
How many cubic yards does a 80 pound bag of concrete cover?
80 pound bag yields .022 cubic yards.How many bags of concrete do I need for a 10x10 slab 4 inches thick?
At 4″ thick, your 10 x 10 slab will take 56 bags of concrete that weigh 80 lbs.
How many square feet is a yard of concrete 6 inches thick?One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet. 5-inches thick – covers 65 square feet. 6-inches thick – covers 54 square feet.
Article first time published onHow much does a 24x30 concrete slab cost?
A 24×30-foot slab covers 720 square feet. With an average price of $6 per square foot, you may pay about $4,320 for a slab foundation. However, the price can range from $4 to $8 per square foot, resulting in a total cost between $2,880 and $5,760.
What is the cost of 1 yard of concrete?
Concrete costs an average of $117 per cubic yard, with a typical range between $104 and $144 per cubic yard. Concrete costs an average of $117 per cubic yard, with a typical range between $104 and $144 per cubic yard.
How much does 2 yards of concrete cost?
Cubic YardsPrice Range1*$140 – $2002*$280 – $4003*$420 – $6004*$560 – $800
How much concrete do I need for 40x60?
It would be about $8,500 to $12,000 for a 40×60 foot concrete slab, 6 inches thick. That’s based on national averages of around $5 per square foot for a fully engineered, finished concrete slab, including labor and materials.
How much does 4 yards of concrete cost?
Cubic YardsMixing On-site Fees4 – 4.75$803 – 3.75$902 – 2.75$1001 – 1.75$110
How do I calculate square feet into yards of concrete?
To convert square feet to cubic yards, you simply multiply your square footage figure by the height or depth of the area (in feet) to get a volume measurement in cubic feet. You then divide the total by 27 to get your measurement in cubic yards.
How many bags of concrete do I need for a 10x8 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 much 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 many yards is a 30kg bag of concrete?
Regarding this, “How many 30kg bags of concrete in a cubic yard”, as 1 cubic yard of concrete = 1630kg, so 30kg bags of concrete = 1630/30 = 55 bags, therefore, approx 55 bags of 30kg concrete in a cubic yard.
Is gravel needed under concrete?
Whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. Gravel is especially important in clay soil because it doesn’t drain well, which results in water pooling under the concrete slab and slowly eroding the soil as it finally drains.
Does a 4 inch 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 much weight can a 4 inch slab of concrete hold?
Typically we like to limit the weight to about 40 lb/sqft on an unknown 4″ slab. In most cases you can go to 80 lb/sqft in isolated spots, but unless you know roughly what the soil bearing and reinforcing is for that slab you might be looking at cracking.
How many cubic feet are in a 60 pound bag of concrete?
15 cubic feet for every 20 pounds of mix, so a 40-pound bag yields . 30 cubic feet, 60 pounds of concrete mix yields . 45 cubic feet and an 80-pound bag yields .
How many 80-pound bags of quikrete are in a yard?
One 80lbs bag of Quikrete Concrete Mix will yield approximately . 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete.
How many sq ft does a bag of concrete cover?
How many square feet will a 60 lb bag of concrete do? @ 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.
How many bags of concrete is 2 yards?
One may ask, “how many bags of concrete in a yard?”, generally you will need 40 bags of 90lb, 45 bags of 80lb, 60 bags of 60lb, 72 bags of 50lb or 90 bags of 40lb of concrete mix to make a cubic yard of concrete that will cover around 108 square feet area upto a standard depth of 3 inch for your slab and patio.
How much does a pallet of concrete weigh?
How Much Does a Pallet of Concrete Weigh? One pallet of 80 lb. concrete bags weighs 3360 lbs. Weights of different sizes of concrete bags will vary slightly as it is difficult to get each pallet of various mixes to weigh the same.
How much concrete does a 80lb bag make?
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 many yards of concrete does a concrete truck hold?
Concrete trucks weigh an average of 25,000 lbs. by themselves and up to 40,000 lbs. when carrying a full load. Their capacity is around 8 cubic yards, but can be up to 10 cubic yards if fully-loaded.
What is ideal temperature to pour concrete?
Experts agree—the best temperature to pour concrete is between 40° – 60°F. When temperatures dip below 40°F, the chemical reactions that strengthen concrete slow down and can lead to weaker concrete.
How thick should a concrete patio be?
Four inches is the minimum thickness for a concrete patio. You’ll want to make it six to eight inches thick if the patio will support a structure such as a gazebo or hot tub.
