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The Coots Materials Calculator helps you to estimate the aggregate tonnage required for your job.
Using the Coots Materials Company Aggregate Calculator: Enter the width, length, and thickness of your job, and click on whether you are measuring the thickness in feet or inches. Next, click on either Rock Products, Sand Products, or a custom density selection. The Rock Products and Sand Products selections will fill in the density of the rock for you; the Custom selection allows you to enter a rock density in the Density field. Finally, click on the Calculate button. The calculator will estimate the number of tons of aggregate that will be required.
Please note that densities will vary somewhat between different loads,
but the default values assigned for Rock Products and Sand Products are good standard
"rules of thumb" for estimating.
Note: To figure Dirt or Clay fill a good estimation would be "1 yard = 1.4 ton"