540 feet2
32 cubic ft.
1485
12.5 cubic feet
You would need 8.
The answer will depend on the depth to which the area is covered.
18ft³
72 cubic feet
32 cubic ft.
It will take 72 sq. ft. of sand. Or 2.66 sq. yds. That will fill the box even.
Another 53.75 square feet of tile would be needed.
1485
12.5 cubic feet
You would need 8.
The answer will depend on the depth to which the area is covered.
Volume of sand required = 7 ft * 7 ft * 1/6 ft = 49/6 cubic feet = 8.166... cubic ft.
All you have to do is find the maximum volume of your sandbox. To do this, multiply the length (6 ft.) by the width (6 ft.) by the depth (10 ft.). 6 x 6 x 10 = 360 cubic feet This is if you want to fill the sandbox to the brim. If you want something about half the depth so that the sand isn't falling out everywhere, you just multiply: 6 x 6 x 5 = 180 cubic feet
26928 pebbles for the minimum depth.