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How many yards of concrete do you need for my project 40 feet by 3 feet by 6 inches deep'?

2.2 Yards


Concrete driveway that is 54 ft 2 in long and 7 ft 10 in wide by 4 inches deep What is the square yards of concrete you will need?

Not square yards, but Approx. 5.24 cubic yards 54'2" = 650" x 7'10" = 94" x 4" = 4" = 244,400 cubic inches / 46,656 cubic inches = 1 cubic yard (36" x 36" x 36")= 5.24 cubic yards


How many yards of concrete to make a 20' x 20' slab?

about 5 yards if your slab is 4" deep


How many yards of concrete do you need for my project 80 feet by 3 feet by 6 inches deep?

1.7 cubic yards of concrete Dondeb...that is an incorrect answer...Lets do this in steps.... 1. 80 X 30 = 240 Surface feet. Divide by .50 because you want it 6 inches deep. 2. 240 divided by .50 = 120 3. 120 is the total square feet of material needed. 4. Divide by 27 as there are 27 cubic feet to a cubic yard....(120 divided by 27) 5. 4.4 cubic yards of concrete are needed, that is if you don't take into account up to 10% for loss or shortage. If this were my project I would order 5 cubic yards.


How many yards of concrete to fill 40 holes 16 inches in diameter by 30 inches deep?

To calculate the volume of concrete needed, first find the volume of one hole. The radius is 8 inches (16 inches diameter) and the depth is 30 inches. The volume ( V ) of a cylinder is given by the formula ( V = \pi r^2 h ). Calculating this gives: [ V = \pi \times (8^2) \times 30 = \pi \times 64 \times 30 \approx 6028.32 \text{ cubic inches} ] For 40 holes, the total volume is ( 40 \times 6028.32 \approx 241133 \text{ cubic inches} ). To convert cubic inches to cubic yards, divide by ( 46,656 ) (the number of cubic inches in a cubic yard), resulting in approximately ( 5.17 ) cubic yards of concrete needed.