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Old 11-15-2010, 09:20 PM
clcare2 clcare2 is offline
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base calculator

Is there a calculator available for base and sand??
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  #2  
Old 11-15-2010, 09:36 PM
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DVS Hardscaper DVS Hardscaper is online now
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if you have Microsoft Excel, you can make your own.

1 ton of concrete sand will cover 200 SF at 1-inch depth.


For aggregate, lets say 5" depth - I use this:

LxWxD/12/27*1.2*1.5

So if you have a 20x20 patio with a 5" base it'll look like this:

20x20x5 = 2000 divided by 12 (converts the inches) divided by 27 (converts to cu yds) = 6.17 x 1.2 (converts to tons) x 1.5 (to factor for compaction) = 11.11 tons

A formula my estimating system uses. been doin it this way from day one. works for us

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  #3  
Old 11-16-2010, 06:39 AM
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SVA_Concrete SVA_Concrete is offline
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Construction Master calculators are pretty helpful as well.

they can convert feet to inches and yards, square and cubic. areas of circles etc etc. all the math functions built in. as well as the Pythagorean theorem for squaring up.

check home depot or amazon.
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Old 11-16-2010, 11:30 AM
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AztlanLC AztlanLC is online now
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this is my formula it has always worked almost perfect for me.

Length x width x inches of base / 240 if you want tons multiplied by 1.5 this accounts for compaction
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  #5  
Old 11-16-2010, 06:56 PM
clcare2 clcare2 is offline
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the 1.5 for compaction was the issue. Thanks.
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