12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
16 * 20 = 320 sq ft. at 4" thick concrete will cover 80 sq ft. 320 / 80 = 4 yards.
one (1) cubic yard of concrete four inches thick will cover 80 sq. feet. 85 yards x 81 = 6885 sq. feet.
You need 1.16tonne. You need to know the weight of a bag of concrete and then divide 1.16 by that weight and that will give you the answer you need.
6 inches is 1/6 of a yard, so a cubic yard of concrete will cover 6 sq yards = 54 sq ft
12.5 cubic feet. Assuming you meant 4 INCHES thick..
A square slab measuring 8 ft by 8 ft by 4 inches will require a minimum of 0.8 cubic yards.
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
16 * 20 = 320 sq ft. at 4" thick concrete will cover 80 sq ft. 320 / 80 = 4 yards.
A pad that is 4 inches think covers 80ish sq ft per yard, so 8 inch would be 40ish sq ft per yard of concrete
one (1) cubic yard of concrete four inches thick will cover 80 sq. feet. 85 yards x 81 = 6885 sq. feet.
You need 1.16tonne. You need to know the weight of a bag of concrete and then divide 1.16 by that weight and that will give you the answer you need.
6 inches is 1/6 of a yard, so a cubic yard of concrete will cover 6 sq yards = 54 sq ft
9.3 cubic yards of cement is required for this slab.
16.667 yards of concrete in a 30 ft x 30 ft x 6 in there are 27 cubic feet of concrete in one yard IE: 27 square ft, 12 inches thick or 54 square ft, 6 inches thick
27 cubic feet okay from hayesconcrete.com 81 sq ft is= 4 inches 54 sg ft is = 6 inches