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Calculate the volume and weight of construction aggregate materials.
Crushed stone typically has a density of 100-120 lbs per cubic foot.
Measure the area length, width, and compacted depth in feet, then use the formula above.
Crushed stone number 57 or 67 is best for driveways because it compacts well and provides excellent drainage under the surface layer.
Multiply the area by compacted depth of 4-6 inches typical for base layers, then add roughly 10 percent for compaction loss and settling over time.
Material estimates are approximate. Actual quantities may vary due to waste, site conditions, design changes, material dimensions, labor methods and local pricing. Always verify with a qualified contractor or supplier before purchasing materials.