Stone Area Calculator
Determine the total area your stone project will cover.
2. Material Details
3. Waste & Costs (Optional)
Your Project Estimate
Enter your project's details to generate a complete material estimate.
A Guide to Calculating Your Stone Project
Accurately calculating the amount of stone you need is the most critical first step for any successful landscaping or construction project. This stone calculator is designed to eliminate guesswork, helping you determine the precise volume of material required. By simply entering your project's dimensions, you can avoid the common pitfalls of over-ordering and wasting money, or under-ordering and facing costly delays.
Whether you're planning a gravel path, a stone patio base, or decorative ground cover, this tool provides an estimate in standard units like cubic yards and tons. Understanding these measurements is key to communicating effectively with suppliers and ensuring your project stays on budget.
Frequently Asked Questions
How do I calculate the cubic yards of stone needed?
First, calculate the volume in cubic feet: Length (ft) × Width (ft) × Depth (ft). Then, divide the result by 27 to convert it to cubic yards, as there are 27 cubic feet in one cubic yard. Our calculator does this automatically for you.
What is a "waste factor" and why should I use it?
A waste factor is an extra percentage of material (typically 5-10%) you add to your order. It's crucial for covering material lost to compaction, uneven ground, and spillage. Adding a waste factor is cheap insurance against running out of stone mid-project.
How deep should my landscape stone be?
For decorative ground cover like garden beds, a depth of 2-3 inches is sufficient. For walkways, 3-4 inches is better. For load-bearing projects like driveways or patio bases, a minimum of 4-6 inches of compacted base stone is required.
How do you calculate stone for an irregular shape?
The best method is to break the irregular area into smaller, regular shapes like rectangles and circles. Calculate the volume for each shape individually using the calculator, then add all the results together for your total.
Is it cheaper to buy stone in bags or in bulk?
For any project larger than a few square feet, ordering stone in bulk from a landscape supplier is almost always significantly more cost-effective than buying individual bags from a big-box store.
What type of stone is best for landscaping?
It depends on the application. Angular crushed stone is best for stable bases. Rounded river rock or pea gravel is excellent for decorative walkways and garden beds. Choose the material that best fits your project's functional and aesthetic needs.