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How to Calculate Asphalt Needed
Calculate the area (length x width) in square feet, then multiply by the thickness in feet (inches / 12) to get cubic feet. Divide by 27 for cubic yards. Hot mix asphalt weighs approximately 2.025 tons per cubic yard. Most residential driveways use 2-3 inches of asphalt over a prepared gravel base.
Asphalt Thickness Guidelines
Residential driveways typically need 2-3 inches of asphalt over a 6-8 inch gravel base. Parking lots require 3-4 inches. Commercial areas with heavy truck traffic may need 4-6 inches. The compacted thickness is approximately 25% less than the loose thickness laid by the paving machine.
Frequently Asked Questions
Hot mix asphalt typically costs $100-$150 per ton for materials only. Installed prices range from $3-$7 per square foot depending on location, site preparation, and project size. Larger projects generally have lower per-square-foot costs.
A standard residential driveway should have 2-3 inches of compacted asphalt over a 6-8 inch compacted gravel base. For areas with heavy vehicle traffic or cold climates, consider 3-4 inches of asphalt.
A properly installed and maintained asphalt driveway lasts 15-30 years. Sealcoating every 2-3 years, filling cracks promptly, and maintaining proper drainage extend the lifespan significantly.