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54sqare feet
800 C feet
2.2 Yards
6x18=108sqft 108divided by 80=1.35yards
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.
To measure the concrete needed for a circular pad:-- Decide how thick (deep) the pad is to be. If it's in inches, divide by 12 for thickness in feet.-- Measure either the circumference or the diameter of the circle, in feet.-- If you measured the circumference, then the cubic yds of concrete needed is(0.00295) x (circumference) x (circumference, again) x (thickness) ... all in feet-- If you measured the diameter, then the cubic yds of concrete needed is(0.0291) x (diameter) x (diameter, again) x (thickness) ... all in feet
0.246914 cu. yards (6.666667 cu. ft ) of concrete is needed.
18.6240 yd³
16.05
40.1 cubic yards
84 cubic inches!
9x12 feet at 4 inches deep: 1.3 cubic yards.
There is no dirt in a hole that is 3 feet deep and six inches in diameter.
18 lxw=
1.54321 cubic yards See the related link below
For a hole 36" deep X 18" diameter, you would need approx. 1/5 cu. yd. concrete.
about 432 cubic inches