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04-08-2009, 07:34 AM   #1
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## how much stone

I need to fill a area with crushed stone, it is 20'x30'x 4" how many yards of stone do I need?

04-08-2009, 07:54 AM   #2
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By my calcs you need 7.4 yards. I believe it is about 1 ton per yard.

04-08-2009, 07:58 AM   #3
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Quote:
 Originally Posted by joed By my calcs you need 7.4 yards. I believe it is about 1 ton per yard.
Correct, about 8 yards, but depending on the stone, I would figure about 2500#'s per yard.

 04-08-2009, 01:38 PM #4 Member   Join Date: Apr 2006 Posts: 235 Rewards Points: 150 what is the formula for calculating that?? thanks for the response
 04-08-2009, 05:20 PM #5 Concrete & Masonry   Join Date: Nov 2008 Location: Wisconsin Posts: 3,480 Rewards Points: 620 3' x 3' x 3' = 27 cubic ft., or 1 yard. If your putting the stone in at 4" thick (1/3 of 1 foot), multiply 27 X 3 = 81. Thus, 81 sq. feet covered per yard at 4". A few more : 5" = 65 6" = 54 7" = 47 8" = 40
04-08-2009, 06:23 PM   #6
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Quote:
 Originally Posted by econdave what is the formula for calculating that?? thanks for the response
The formula it length x width x thickness. If they are all in feet the the result is cubic feet . 27 cubic feet in the yard so it works like this.

20 x 30 x 4/12= 200 (4/12 to convert to feet)
now divide by 27 to get yards
200/27 = 7.4

Or you could do it all in one
20/3 x 30/3 x 4/36 = 7.4 (36 inches in yard, 3 feet in yard)

 04-08-2009, 06:50 PM #7 Member   Join Date: Apr 2006 Posts: 235 Rewards Points: 150 o.k so how many tons and how do you do that?
04-08-2009, 09:40 PM   #8
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Tons per yard are far more specialized, depends on material, region, moisture content, etc. Call a local gravel pit for that info.

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