To calculate the amount of concrete needed for a 715 square foot area with a thickness of 4 inches, first convert the thickness from inches to feet: 4 inches is 1/3 of a foot. Next, multiply the area by the thickness: 715 sq ft × (1/3 ft) = approximately 238.33 cubic feet. Since concrete is typically ordered in cubic yards, convert cubic feet to cubic yards by dividing by 27, which gives about 8.81 cubic yards of concrete needed.
157 pounds
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
18.52 cubic yards. Adjusting for safety, you should order a minimum of 19.5 cubic yards.
2400 sq. ft. Divided by 3 (1/3 ft thick) = 800 cu ft 800 / 27 (27 cu ft per cu yd) = 29.63 cu yds Order 31 to 33 yds depending on how accurate your 4" are. Dan
A square slab measuring 8 ft by 8 ft by 4 inches will require a minimum of 0.8 cubic yards.
157 pounds
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.
12.5 cubic feet. Assuming you meant 4 INCHES thick..
1,500 ft.
4.938 cubic yards.
16 * 20 = 320 sq ft. at 4" thick concrete will cover 80 sq ft. 320 / 80 = 4 yards.
532.4074 yards of concrete, round up to 533 yards.
18.52 cubic yards. Adjusting for safety, you should order a minimum of 19.5 cubic yards.
2400 sq. ft. Divided by 3 (1/3 ft thick) = 800 cu ft 800 / 27 (27 cu ft per cu yd) = 29.63 cu yds Order 31 to 33 yds depending on how accurate your 4" are. Dan
That's going to depend on many things you haven't mentioned, including how deep/thick you need it to be.
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.