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5 inches is 5/12 feet. So volume of concrete required is 490 x 5/12 = 204.16 cubic feet There are 3 x 3 x 3 = 27 cubic feet in a cubic yard. Therefore the volume required is 204/27 = 7.56 cubic yards (say 8 cubic yards). A useful example of estimating foundations and floor is at `Estimating - Foundation and Floor' http://www.inquirewithin.biz/Vol2/Estimating/estimating_foundations.htm
What else can I help you with?
How many yards of concrete is needed for 361 square yards 4 inches deep?
40.1 cubic yards
How many yards of concrete will cover 3200 square feet at 4 inches thick?
39.1116 cubic yards
How many square feet will 3 yards of concrete cover at 4 inches thick?
One square yard is nine square feet, so 27 square feet is equivalent to 3 square yards. So 3 yards of concrete will cover 27 square feet.
If you are making a concrete patio 4 inches thick what is the area of the largest patio you could make if you ordered 4 cubic yards of concrete?
16 x 16. Actually if you do the math, you could do a 18 x 18, but you never get 4 yards and you rarely get a form that is a perfect .33 feet.
How many yards of concrete do you need if the square footage is 3100 by 2 inches thick?
It should be a little over 19 yards.
How many square yards of concrete are in 1000 square feet with a 6 inch depth?
1000 square feet/9 = 111.1 square yards of concrete 6 inches thick. This is the same as 111.1/4.5 = 24.7 cubic yards of concrete.
If you have a 450 sq ft patio how many yards of concrete?
To find out how many yards of concrete you need for your 450 sq ft patio, you would first need to determine the thickness of the concrete you plan to pour. Let's assume a standard 4-inch thickness. One cubic yard of concrete would cover 81 square feet at a 4-inch depth. So for a 450 sq ft patio at 4 inches thick, you would need approximately 5.56 cubic yards of concrete.
How many yards of concrete is needed for 361 square yards 4 inches deep?
40.1 cubic yards
How many yards of fabric will you need for 4 patio cushions that measure 24 x 27?
To calculate the fabric needed for 4 patio cushions measuring 24 x 27 inches, first determine the total area of one cushion: 24 inches x 27 inches = 648 square inches. For 4 cushions, the total area is 648 square inches x 4 = 2,592 square inches. Since there are 1,296 square inches in a square yard (36 inches x 36 inches), divide 2,592 by 1,296, which equals 2 yards. Therefore, you will need approximately 2 yards of fabric to make 4 patio cushions.
How many yards of concrete will cover 3200 square feet at 4 inches thick?
39.1116 cubic yards
How many square feet will 3 yards of concrete cover at 4 inches thick?
One square yard is nine square feet, so 27 square feet is equivalent to 3 square yards. So 3 yards of concrete will cover 27 square feet.
How many yards of concrete needed for 576 square feet?
For 576 square feet at a depth of 4 inches, you will need 7.11 cubic yards.
If you are making a concrete patio 4 inches thick what is the area of the largest patio you could make if you ordered 4 cubic yards of concrete?
16 x 16. Actually if you do the math, you could do a 18 x 18, but you never get 4 yards and you rarely get a form that is a perfect .33 feet.
How many yards of concrete is 400 square ft?
At a poured depth of 4 inches, you will need 4.94 cubic yards.
How many cubic feet in a square yard of concrete?
That depends on how thick you are pouring the slab (or patio or whatever). Say for example you're pouring it 6 inches deep, which is 1/6 yard. You could get 6 square yards, which (times 9) is 54 square feet.
How many yards of concrete do you need if the square footage is 3100 by 2 inches thick?
It should be a little over 19 yards.
How many yards in 25 inches x 25 inches?
If you multiply inches times inches, you get square inches. You can convert that to square yards, but not to yards.
