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Standard driveway: 4–6 in | Patio: 3–4 in
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Average $130–$200/cubic yard
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Concrete Coverage & Tips
One cubic yard of concrete covers approximately 81 square feet at 4 inches thick, 65 sq ft at 5 inches, or 54 sq ft at 6 inches. Always order 10% extra to account for spillage, uneven subgrade, and waste — this calculator includes that buffer automatically.
Frequently Asked Questions
How many bags of concrete are in a yard?
One cubic yard of concrete equals approximately 45 bags of 80 lb premix concrete, 60 bags of 60 lb, or 90 bags of 40 lb. For large projects (over 1 yard), ordering ready-mix delivered by truck is more economical and practical than mixing bags. For small projects under ½ yard, bags are more cost-effective.
How much does concrete cost per yard?
Ready-mix concrete typically costs $130–$200 per cubic yard for materials, depending on your location, mix strength, and whether you need fiber reinforcement or special additives. Delivery and finishing labor adds $50–$75 per cubic yard for a basic pour. Total installed cost is typically $6–$12 per square foot for a standard 4-inch slab.
How thick should a concrete slab be?
Standard thicknesses: 3–4 inches for patios and walkways, 4 inches for driveways (passenger vehicles), 5–6 inches for driveways with heavy vehicles or trucks, 6 inches for garage floors and workshop slabs, and 8+ inches for industrial floors or slabs supporting heavy equipment. Always check local building codes — some jurisdictions require minimum slab thicknesses for specific applications.
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