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84" x 84" x 5" = 35,280 cubic inches = 20.41667 cubic feet = 0.756 cubic yard (rounded)

I have no idea how much weight that is, but the man at the lawn and garden store,

home improvement mega-store, or landscaping contractor will know immediately.

Q: How much sand do you need for a 84 by 84 sandbox that is 5 deep?

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8*5*1/2 = 20 cubic feet.

8 ft * 10 ft * 0.5 ft = 40 cubic feet

lots and lots

Assuming the box was empty to begin with there will be 8 inches of sand now.

6.2 cubic feet

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8*5*1/2 = 20 cubic feet.

8 ft * 10 ft * 0.5 ft = 40 cubic feet

lots and lots

Assuming the box was empty to begin with there will be 8 inches of sand now.

6.2 cubic feet

just about 32 cubic feet of sand

(60" x 100" x 6") = 36,000 cubic inches

ABOUT 43 bags. Dry sand weighs ABOUT 100 lbs per cubic foot- and you need 21.3 cubic feet.

12.5 cubic feet

It depends on the density of the sand. Certainly, you are talking about 56 cubic feet, but you will need to know the bulk density of sand to figure out how much that weighs.

It will take 72 sq. ft. of sand. Or 2.66 sq. yds. That will fill the box even.

You need 4.27 cubic feet. Weight in pounds is deceptive for sand depending on how wet or dry the sand is.