Wiki User
∙ 11y ago12 ft x 12 inches/ 1 foot = 144 inches
6 ft x 12 inches/ 1 foot = 72 inches
144in x 72in x 6in = 62208 cubic inches of sand
Wiki User
∙ 11y ago8*5*1/2 = 20 cubic feet.
8 ft * 10 ft * 0.5 ft = 40 cubic feet
32 cubic ft.
12.5 cubic feet
nah
8*5*1/2 = 20 cubic feet.
8 ft * 10 ft * 0.5 ft = 40 cubic feet
32 cubic ft.
12.5 cubic feet
nah
18ft³
6,400 ft3
In order to answer this question you must first convert the measurements into inches(20 ft= 240 in), so the new problem is 240*240*3, which equals 172800. Then you must convert the inches into yards by dividing 172800 by 36, which equals 4800. So it takes 4800 yards of sand to fill a sandbox 20 feet by 20 feet by 3 inches.
It will take 72 sq. ft. of sand. Or 2.66 sq. yds. That will fill the box even.
cylinder 18 feet diameter x 1.5 feet deep volume = 381 cubic feet
That depends on how many cubic feet of sand fit in that 50 pound bag. I can get you close, but cannot give the final answer. First convert your dimensions of the sandbox to feet. 86 inches = 86 / 12 = 7.166 feet 45 inches = 45 / 12 = 3.75 feet 6 inches = 6 / 12 = 0.50 feet Multiply the 3 together to determine the total cubic footage required... 7.166 * 3.75 * 0.5 = 13.437375 cubic feet. Once you know how many cubic feet are in your sandbag --- call it X, you determine your needed number of bags by dividing 13.437375 by X. Hope this helps.
ABOUT 43 bags. Dry sand weighs ABOUT 100 lbs per cubic foot- and you need 21.3 cubic feet.