1. What is River Rock Calculation?

The River Rock calculation determines how much river rock (in cubic yards) you need to cover a specific area at a desired depth. This helps in landscaping projects and material estimation.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( \text{Area} \) — Area to be covered (square feet)
• \( \text{Depth} \) — Desired depth of river rock (inches)
• 12 — Converts inches to feet
• 27 — Converts cubic feet to cubic yards

Explanation: The equation first converts depth from inches to feet, calculates cubic feet, then converts to cubic yards.

3. Importance of Accurate Calculation

Details: Accurate calculation ensures you purchase the right amount of river rock, avoiding excess costs or multiple trips for additional material.

4. Using the Calculator

Tips: Measure your area accurately in square feet. For depth, typical river rock applications use 2-4 inches. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How much river rock do I need for a 100 sq ft area?
A: For 3 inches depth: (100 × (3/12))/27 ≈ 0.93 cubic yards.

Q2: What's the typical depth for river rock?
A: For decorative purposes: 2-3 inches. For drainage: 3-4 inches.

Q3: Should I account for compaction?
A: Yes, consider adding 10-15% more for compaction, especially for deeper applications.

Q4: How do I measure irregular areas?
A: Break into rectangles, calculate each separately, then sum the results.

Q5: Can I use this for other materials?
A: Yes, this calculation works for any bulk material measured in cubic yards.