1 yard of sand

95_stroker

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Well.................


How thick do ya want it? It'll cover 3 sq ft, 3 ft deep. :D

9 sq ft, a foot deep.

Think of it like that way and do the math. :sweet
 

Hoss 350

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There are actually 27 cubic feet in a cubic yard (3 times 3 times 3) so a cubic yard will cover 27 square feet one foot deep, not 9. 9 square feet one foot deep is only one third of a cubic yard.

For your 16 X 32 pool (512 square feet), covered 2” (or .1667 feet) deep, you just multiply 512 by .1667 = 85.333 cubic feet of sand. Then, to convert to cubic yards, divide by 27 (the number of cubic feet per cubic yard). So, Stroker’s final answer was correct, 3.16 cubic yards.

One more thing is waste. Unless your subgrade is absolutely perfect, you’ll be filling in holes, etc that do not go to the 2” layer. Also, you’ll lose some at the dump site, too. Better figure 10 to 20% loss, and get 3.5 yards, all told.
 

powerboatr

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Hoss 350 said:
There are actually 27 cubic feet in a cubic yard (3 times 3 times 3) so a cubic yard will cover 27 square feet one foot deep, not 9. 9 square feet one foot deep is only one third of a cubic yard.

For your 16 X 32 pool (512 square feet), covered 2” (or .1667 feet) deep, you just multiply 512 by .1667 = 85.333 cubic feet of sand. Then, to convert to cubic yards, divide by 27 (the number of cubic feet per cubic yard). So, Stroker’s final answer was correct, 3.16 cubic yards.

One more thing is waste. Unless your subgrade is absolutely perfect, you’ll be filling in holes, etc that do not go to the 2” layer. Also, you’ll lose some at the dump site, too. Better figure 10 to 20% loss, and get 3.5 yards, all told.

hoss
:D

www.graniterock.com
they also have calculators for every conceivable material, i use theirs often.
 

Hoss 350

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powerboatr said:
hoss
:D

www.graniterock.com
they also have calculators for every conceivable material, i use theirs often.
Please understand that this is what i do for a living. i am a construction estimator and project manager by trade. Therefore, this sort of stuff is nothing but fun for me, since i do it a hundreds of times a day in my head.

The major mistakes most guys make in this stuff are the differences between squares and cubes, (ie, there are 27 cubic feet in a cubic yard, not 9, like is a common error. There are 9 square feet in a square yard) and also not getting their units right. A lot of mistakes occur when a guy says "okay, I've got 512 square feet, at two inches deep" and so then takes 512 times 2, and gets 1,024. That gives about 38 cubic yards of material needed. Don't laugh, i've seen it happen! You can only multiply feet by feet, and inches by inches. Oh, and if you do inches by inches, then want to covert to square feet, the conversion factor is now 144 (inches squared per square foot) not 12! This is the kind of thing that can eat a guy to bits when he trys to convert factors and figure volumes.

THAT and ONLY THAT, is why i laid out the steps in my process in my post. It was not to be condescending, but rather to show how to do it properly for future knowledge. There is a lot of pitfall to stuff like this, and I wanted to help see that you have to convert inches to feet, and stuff like that.
 

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