1. What is the Gravel Calculation?

The gravel calculation estimates the amount of gravel needed for a project in cubic yards, accounting for compaction. It's essential for landscaping, construction, and drainage projects.

2. How Does the Calculator Work?

The calculator uses the gravel formula:

Where:

• \( Length \) — Area length in feet
• \( Width \) — Area width in feet
• \( Depth \) — Gravel depth in feet
• \( 27 \) — Conversion factor (cubic feet to cubic yards)
• \( Compaction Factor \) — Accounts for settling (typically 1.1-1.3)

Explanation: The equation calculates volume in cubic yards and adjusts for compaction that occurs after installation.

3. Importance of Gravel Calculation

Details: Accurate gravel estimation prevents project delays, ensures proper drainage, and helps budget correctly for materials.

4. Using the Calculator

Tips: Measure length and width in feet, estimate desired depth (typically 2-4 inches for pathways), and use a compaction factor between 1.1 and 1.3.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 27 in the formula?
A: There are 27 cubic feet in 1 cubic yard (3 feet × 3 feet × 3 feet).

Q2: What's a typical compaction factor?
A: 1.1-1.3 is common. Higher factors account for greater settling (use 1.25 for heavy traffic areas).

Q3: How do I convert inches to feet for depth?
A: Divide inches by 12 (e.g., 3 inches = 0.25 feet).

Q4: Should I order extra gravel?
A: It's recommended to add 10-15% to account for irregularities and spillage.

Q5: How does gravel type affect calculation?
A: While the volume calculation remains the same, different gravel types may have varying compaction rates.