Therefore the bat will commonly be known as a Drop 10oz. 30-20 = 10oz. This will help determine the players comfort zone by length and weight. Please click on the -10oz under the Shop by Drop under the Youth baseball bats. On the middle of the page left side of the screen you will see By Length/Weight. Under that you will see the sizes available, click on the word more to see all the sizes.
Calculate the volume of dirt needed to fill the area you measured by multiplying length (120 inches) by width (60 inches) by depth (30 inches). Total volume equals 216,000 cubic inches. Convert cubic inches to cubic yards by dividing by 46,656 cubic inches. So, 216,000 cubic inches divided by 46,656 cubic inches equals 4.63 cubic yards. To fill the rectangular area at a depth of 2 feet 6 inches, you will 4.63 cubic yards of fill dirt.
Enter the dimensions of the area you want to cover in feet, and then enter the depth that you would like to cover that area in inches. Then click the calculate button to calculate the number of cubic yards you will need. For bark or mulch, a nice thick depth would be 3 to 4 inches. If you want to cover an area with gravel, 1 to 2 inches should be sufficient depending on the size of the gravel. If you are using 3/4 inch gravel or larger figure on at least 2 inches in depth to get good coverage.