Sand needed: 8*6*1.5 = 72 cubic feet
72 cubic feet.
192
32 cubic ft.
630 cubic inches
Volume of sand required = 7 ft * 7 ft * 1/6 ft = 49/6 cubic feet = 8.166... cubic ft.
.21 yards of sand will fill an area 115 inches by 67 inches to a depth of 2.5 inches.
192
32 cubic ft.
630 cubic inches
72 cubic feet
It will take 72 sq. ft. of sand. Or 2.66 sq. yds. That will fill the box even.
4 inches deep would be the minium coverage of sand needed for a horse area
Volume of sand required = 7 ft * 7 ft * 1/6 ft = 49/6 cubic feet = 8.166... cubic ft.
use a known volume container to measure a quantity = 200 x (the depth you want the sand).
4 x 6 x .75 = 18 cu ft of sand
.21 yards of sand will fill an area 115 inches by 67 inches to a depth of 2.5 inches.
You convert everything to compatible units. Then you multiply area x depth. I suggest you convert the depth to feet; in that case, the answer will be in cubic feet.
You need 4.27 cubic feet. Weight in pounds is deceptive for sand depending on how wet or dry the sand is.