3X.5 = 1.5 Sq Feet
144
It depends on the thickness of slab. A yard of cement contains 9 cubic feet. Thus, it would cover 9 square feet if the slab was 1 foot thick. For a 4 inch thick slab, it would cover 3 times as much area, or 27 square feet.
0.69444 cubic yard (rounded)
Volume = 900 sqft * 1/12 ft = 75 cubic feet.
It will cover an area of approximately 408.33 square feet.
A square foot will cover a square foot, regardless of the depth of the material the cover is made of.
144
It depends on the thickness of slab. A yard of cement contains 9 cubic feet. Thus, it would cover 9 square feet if the slab was 1 foot thick. For a 4 inch thick slab, it would cover 3 times as much area, or 27 square feet.
90 square feet
1 cubic yard covers 324 square feet per inch of thickness, divide 324 by thickness in inches to get coverage, i.e. 4 inches thick would cover 324/4=81 square feet, 36 inches thick would cover (you guessed it) 9 square feet.
I think one 80 lb. bag will cover about 4 square feet 1 inch thick
0.69444 cubic yard (rounded)
It depends how thin the cubic feet are. If they are 1 foot thick: 21,000 cubic feet. If they are 3 feet thick: 63,000 cubic feet will cover 21,000 square feet.
1 yard topsoil covers 100 square feet to 3 inches, 200 square feet to 1.5 inches and 300 square feet to 1 inch.
Volume = 900 sqft * 1/12 ft = 75 cubic feet.
1/144 of square foot
1.78 square feet.