Stone Coverage Calculator
Find out how much area a specific amount of stone will cover.
Stone Coverage Calculator - Calculate Surface Area Coverage by Material Type
The stone coverage calculator determines how much area a given quantity of stone will cover at specific depths. This is essential for planning landscaping projects where you need to know the square footage coverage of gravel, mulch, or decorative stone. Different stone types have different coverage rates based on size and density.
Coverage depends on stone size, type, and desired depth. Small pea gravel covers more area than large river rock at the same depth. The calculator accounts for these variables to provide accurate coverage estimates in square feet. This helps you plan projects like landscape beds and drainage projects with precision.
Use this calculator alongside our cubic yard calculator to ensure you have both the volume in tons and the coverage area for your project. Proper planning prevents shortages and waste.
Frequently Asked Questions
How do I calculate stone coverage?
Coverage depends on stone size and depth. A general rule: 1 cubic yard covers 100 sq ft at 3 inches depth, or 150 sq ft at 2 inches depth. This calculator adjusts for specific material types and depths for more accurate estimates.
Does stone type affect coverage rates?
Yes. Small stones (pea gravel, marble chips) cover more area than large stones (river rock, boulders). Fine materials compact slightly, affecting coverage. The calculator accounts for material type differences.
What depth is best for decorative stone?
2-3 inches is typical for decorative beds. This depth hides soil, looks attractive, and reduces weed growth. Deep depths (4+ inches) are better for high-traffic areas or drainage applications.
How do I adjust coverage for settling?
Stone settles 10-15% over time as it compacts naturally. Add 10-15% extra to your coverage calculations for materials that will settle, especially fine particles. See our compaction calculator for more details.
Can I calculate coverage for irregular areas?
Break the irregular area into regular shapes (rectangles, circles), calculate coverage for each, then add the results. This method works for any shape.
What's the difference between coverage and volume?
Coverage measures area (square feet), while volume measures cubic capacity (cubic yards or tons). You need both for planning: volume tells you quantity to order, coverage tells you the area it will fill.