Crushed Stone Calculation Formula:
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The crushed stone calculation estimates the quantity of stone needed for a driveway project based on the area's dimensions and the desired depth of coverage. It accounts for the density of the material to convert volume to weight.
The calculator uses the following formula:
Where:
Explanation: The formula first converts all measurements to feet, calculates cubic yards, then multiplies by density to get weight in tons.
Details: Proper calculation ensures you order the right amount of material - too little means multiple deliveries, too much wastes money and storage space.
Tips: Measure your driveway accurately, decide on proper depth (typically 4-6 inches for driveways), and know your material density (ask your supplier).
Q1: What's the typical density for crushed stone?
A: Most crushed stone weighs between 1.4 to 1.7 tons per cubic yard, depending on stone type and compaction.
Q2: How deep should crushed stone be for a driveway?
A: Typically 4-6 inches for residential driveways, but consult with a professional for your specific needs.
Q3: Should I add extra to account for compaction?
A: Most calculations already account for compaction, but discuss with your supplier for specific material.
Q4: How do I measure an irregularly shaped driveway?
A: Break it into rectangular sections, calculate each separately, then sum the totals.
Q5: Can I use this for other aggregates like gravel?
A: Yes, but be sure to use the correct density for your specific material.