1. What is River Rock Calculator?

The River Rock Calculator helps you determine the amount of river rock needed for your landscaping project in cubic yards. It calculates based on the area's length, width, and desired depth of rock coverage.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• Length — The measurement of the longest side of the area
• Width — The measurement of the shorter side of the area
• Depth — The desired depth of river rock coverage
• 27 — Conversion factor from cubic feet to cubic yards

Explanation: The equation calculates the volume in cubic feet and converts it to cubic yards (1 cubic yard = 27 cubic feet).

3. Importance of Accurate Calculation

Details: Accurate calculation helps prevent over-ordering (wasting money) or under-ordering (causing project delays) of river rock materials.

4. Using the Calculator

Tips: Measure the area carefully in feet. For depth, consider 2-3 inches (0.17-0.25 feet) for decorative coverage or 4-6 inches (0.33-0.5 feet) for functional coverage.

5. Frequently Asked Questions (FAQ)

Q1: How much river rock do I need for a 10x10 area?
A: For a 10x10 area with 3-inch depth: (10 × 10 × 0.25)/27 ≈ 0.93 cubic yards.

Q2: Should I order extra river rock?
A: It's recommended to order 10-15% extra to account for settling, uneven surfaces, and future replacements.

Q3: How deep should river rock be for landscaping?
A: Decorative areas: 2-3 inches. High-traffic areas or weed barriers: 4-6 inches.

Q4: How much does a cubic yard of river rock cover?
A: At 3-inch depth: covers about 100 square feet. At 2-inch depth: covers about 150 square feet.

Q5: What size river rock is best for landscaping?
A: 1-3 inches is most versatile. Smaller sizes for pathways, larger sizes for decorative accents.