it will cover 3 cubic feet, or 9 feet, I am not sure how many square feet
1 cubic yard covers 27/depth in feet square feet.
To find the volume in cubic feet needed to cover 21,000 square feet, you would also need the height of the coverage area. The volume (cubic feet) is calculated by multiplying the area (square feet) by the height (feet). Without the height, it's not possible to determine the amount of cubic feet needed to cover 21,000 square feet.
744 Square Feet
Here's the formula: 27 cubic feet = 1 cubic yard. 1 cubic yard will cover 324 square feet at a depth of 1 inch. 2000 square feet divided by 324 square feet = 6.2 yards (rounded). Another approach: 7 cubic yard X 324 square feet = 2268 square feet of coverage at a depth of 1 inch.
1 cubic yard of concrete fills 27/depth in feet square feet.
800 square feet x 1/12 x 3/4 = 50 cubic feet.
27 square feet Answer. 15 square metres at 3 inches thick.
One cubic yard of mulch will cover approximately 160 square feet at 2" deep, so you would need approximately two cubic yards of mulch to cover 271 square feet at 2" deep.
1 cubic yard = 27 cubic feet.
453.6 cubic feet=138.29 square feet
66 cu ft