20mm Gravel Coverage Calculator

Gravel Coverage Formula:

\[ A = \frac{V \times 27}{D} \]

Area Covered (sq ft):

1. What is a 20mm Gravel Coverage Calculator?

Definition: This calculator estimates the area that can be covered with 20mm gravel based on the volume of gravel available and the desired depth.

Purpose: It helps determine how much area you can cover with a given amount of 20mm gravel at a specific depth.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ A = \frac{V \times 27}{D} \]

Where:

\( A \) — Area covered (square feet)
\( V \) — Volume of gravel (cubic yards)
\( 27 \) — Conversion factor (cubic feet per cubic yard)
\( D \) — Depth (feet)

Explanation: The gravel volume is converted to cubic feet, then divided by the depth (in feet) to determine coverage area.

3. Importance of Gravel Coverage Calculation

Details: Accurate coverage calculations ensure you purchase the right amount of gravel for your project, avoiding shortages or excess material.

4. Using the Calculator

Tips: Enter the gravel volume in cubic yards and desired depth in inches (default 2 inches). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why 20mm gravel specifically?
A: 20mm gravel is a common size for landscaping and construction projects, providing good drainage while being stable underfoot.

Q2: What's a typical depth for gravel coverage?
A: For most applications, 2 inches is standard, but this may vary based on project requirements.

Q3: How do I convert cubic meters to cubic yards?
A: Multiply cubic meters by 1.308 to get cubic yards.

Q4: Does this account for compaction?
A: No, for compacted gravel, consider reducing the coverage area by 10-15%.

Q5: How do I calculate volume if I know the weight?
A: Divide weight (tons) by density (typically ~1.4 tons/cu yd for 20mm gravel).

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