1. What is the River Rock Estimator?

The River Rock Estimator calculates the approximate tonnage of river rock needed for a landscaping project based on area dimensions and rock density. It helps prevent over- or under-ordering materials.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( Length \) — Project area length in feet
• \( Width \) — Project area width in feet
• \( Depth \) — Desired rock depth in inches
• \( Density \) — Rock density in tons per cubic yard (typically 1.4-1.6)

Explanation: The formula converts inches to feet, calculates cubic feet, converts to cubic yards, then multiplies by density to get tons.

3. Importance of Accurate Estimation

Details: Proper estimation helps budget projects accurately, ensures you have enough material, and minimizes waste or additional delivery costs.

4. Using the Calculator

Tips: Measure your area carefully in feet. Typical depth for landscaping is 2-4 inches. Density varies by rock type - consult your supplier for exact values.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for river rock?
A: Most river rock has a density between 1.4-1.6 tons per cubic yard, with 1.5 being a common average.

Q2: How deep should I lay river rock?
A: For decorative purposes, 2-3 inches is common. For functional purposes like drainage, 4+ inches may be needed.

Q3: Should I add extra to my order?
A: It's wise to order 10-15% extra to account for compaction, spillage, and future touch-ups.

Q4: How do I measure irregularly shaped areas?
A: Break the area into rectangles, calculate each separately, then sum the totals.

Q5: Does this account for slope?
A: No, this calculates for flat areas. Sloped areas may require additional material - consult with a professional.