Cannot answer the question with out the depth dimension. If you are talking about square yards then 20x5 = 100 square feet, divided by 9 = 11.11 square yards,
106.67 Cubic Yards
Approx 64 cubic yards.
For an area that is 20ft by 20ft and you want to add 6 inches of topsoil, you will need 20 cubic yards of topsoil. Topsoil is typically ordered by the cubic yard, so this measurement will ensure that you have enough to cover the entire area with a 6-inch layer.
20 feet x 20 ft x .3333 ft = 133.33 cubic feet / 27 cubic feet per yard = 4.94 cubic yards
To calculate the amount of concrete needed for a 24ft by 20ft slab that is 4 inches thick, first convert the thickness to feet (4 inches = 1/3 feet). The volume in cubic feet is then 24ft × 20ft × (1/3)ft = 160 cubic feet. To convert cubic feet to cubic yards (since concrete is often sold by the cubic yard), divide by 27: 160 cubic feet ÷ 27 = approximately 5.93 cubic yards. Therefore, you would need about 6 cubic yards of concrete.
That depends on how DEEP you want the concrete !
9.3 cubic yards of cement is required for this slab.
20ft x 10ft x 7ft = 1400 cubic feet 1 yard of dirt = 27 cubic feet Hence yards required = 1400/27 = 51.85
20ft long and 5ft wide!
66.666 square yards
Think of a box about 5ft 6 inches tall, 5ft 6 inches wide and 5ft 6 inches deep filled with sand. That's about 6 cubic yards.
125 cubic feet.