How to use it
- Enter length in feet.
- Enter width in feet.
- Enter depth in inches.
- Read cubic yards, tons and cubic feet results.
What it does The Washed Rock Calculator turns the dimensions of your rock bed—length, width, and depth—into three practical measures: cubic yards, cubic feet, and an approximate tonnage (using 1.4 tons per cubic yard).
Why it matters Cubic yards tell you how much material you need to order, cubic feet help you compare with other projects, and the ton estimate lets you budget transportation and labor.
How to read the results
- Cubic yards: volume of rock in standard yard units.
- Cubic feet: raw volume, useful for on‑site checks.
- Tons (approx): weight based on the 1.4 ton per cubic yard factor.
The calculation assumes a uniform depth and a typical washed rock density; small variations in stone size or moisture will not drastically change the estimate. Use the results to confirm supplier bids or to verify that your excavation plan meets local regulations.
Enter your numbers and get an instant, free read‑out that you can use for quotes or permits.
Pro tips
- Add 5‑10% extra volume for compaction and spillage.
- Round up to the nearest 0.1 cubic yard when ordering.
- Compare the ton estimate with truck capacity to avoid overloading.
- Double‑check depth measurement at multiple points for uneven surfaces.
Real-life examples
- A homeowner planning a new patio needs to know how much washed rock to purchase.
- A landscape contractor preparing a drainage bed wants to quote material weight for delivery.
- A city permit office requires volume and weight details for a stormwater retention project.
Case study
Jane needed 0.9 cubic yards of washed rock for a garden path. Using the calculator she entered 12 ft × 8 ft × 4 in, got 0.9 yd³ and 1.3 tons, ordered exactly that amount, and saved $150 by avoiding over‑order.