9.3 cubic yards of cement is required for this slab.
5 yds - One yard of concrete will cover approximately 81 square feet 4" deep.
20 feet x 20 ft x .3333 ft = 133.33 cubic feet / 27 cubic feet per yard = 4.94 cubic yards
That depends on how DEEP you want the concrete !
0.246914 cu. yards (6.666667 cu. ft ) of concrete is needed.
106.67 Cubic Yards
An area 20ft x 34' is 680 square feet. 4 inches is 1/3 of a foot so cubic feet required is 680 x 1/3 = 226.7 cubic feet. There are 3x3x3 = 27 cubic ft in a cubic yard. Therefore cubic yards required = 226.7/27 = 8.4 cubic yards
It is 6 yards and 2ft.
20 times 50 divided by three is 333 1/3
66.666 square yards
20 feet is 240 inches.
7 feet thick
A dump truck load of 7.5 yards