1. What is Road Base Gravel?

Road base gravel is a mixture of crushed stone and fine materials used as a foundation for roads, driveways, and other construction projects. It provides stability and proper drainage.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( area \) — Area to be covered (square feet)
• \( depth \) — Depth of gravel layer (feet)
• \( density \) — Density of gravel (pounds per cubic foot)
• 2000 — Conversion factor (pounds to tons)

Explanation: The formula calculates the volume of gravel needed and converts it from pounds to tons.

3. Importance of Accurate Calculation

Details: Proper calculation ensures you order the right amount of material, avoiding costly overages or project delays from shortages.

4. Using the Calculator

Tips: Measure the area accurately in square feet. Typical gravel density is about 100 lbs/ft³ but check with your supplier. Depth should account for compaction.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for road base gravel?
A: Most road base gravel has a density between 95-105 lbs/ft³, but always verify with your supplier.

Q2: How much does compaction affect the calculation?
A: Gravel typically compacts about 10-15%. Consider adding this to your depth calculation.

Q3: Should I order extra gravel?
A: It's recommended to order 10-15% more than calculated to account for settling and irregularities.

Q4: How do I convert cubic yards to tons?
A: Multiply cubic yards by 1.4 (average conversion factor) or use the density-specific calculation.

Q5: What's the difference between road base and regular gravel?
A: Road base has finer particles that compact better, creating a more stable foundation than regular gravel.