Driveway Stone Calculator
Calculate stone needed for durable driveways.
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Build a Durable Driveway: The Ultimate Stone Calculator
A stone or gravel driveway requires a solid foundation to withstand the weight of vehicles and the test of time. Our driveway stone calculator is engineered to help you plan this critical project. It accurately calculates the tons of crushed stone needed for a durable, long-lasting base.
The key to a successful driveway is depth. A minimum base of 4-6 inches of compacted crushed stone is standard for cars and light trucks. For heavier vehicles, you may need 8 inches or more. This stone driveway calculator ensures you order enough material to achieve the proper compacted depth, preventing ruts and drainage issues down the road.
Frequently Asked Questions
What is the best stone for a driveway?
The best material is an angular, interlocking crushed stone. #57 crushed stone is a popular choice for the top layer, while a larger #3 stone can be used for the initial sub-base for added stability.
How deep should a stone driveway be?
A total depth of 6-8 inches is recommended. This usually consists of a 4-6 inch sub-base of larger crushed stone, followed by a 2-3 inch top layer of smaller, more tightly packed stone.
How many tons of gravel for a 10x20 driveway?
For a 10ft x 20ft driveway with a 4-inch base, you will need approximately 4.5 to 5 tons of crushed stone. Use our calculator for an exact number based on your specific dimensions.
Do I need to compact a stone driveway?
Absolutely. Compaction is the most critical step. You should compact the sub-base and each subsequent layer with a heavy roller or plate compactor to lock the stones together and create a solid surface.
How do I calculate for a circular driveway?
Our calculator has a 'Circle' shape option. Simply measure the diameter of the circular area, and the tool will calculate the required volume and tonnage for you.
Can I just dump gravel on dirt for a driveway?
This is not recommended. For a lasting driveway, you must remove the topsoil, lay down a geotextile fabric for stabilization and weed prevention, and then build your base in compacted layers.