Gravel Coverage per Ton

Gravel Coverage Formula:

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

Coverage Area (sq ft):

Adjusted for Depth (sq ft @ 3 in):

1. What is a Gravel Coverage Calculator?

Definition: This calculator estimates the area that can be covered by a given weight of gravel at a specified depth.

Purpose: It helps determine how much area a ton of gravel will cover for landscaping, driveways, or construction projects.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

\( A \) — Coverage area (square feet)
\( T \) — Weight of gravel (tons)
\( D \) — Density of gravel (tons/cubic yard)
\( 27 \) — Conversion factor (cubic feet per cubic yard)

The depth adjustment divides the base coverage by (depth in inches / 12) to convert to feet.

3. Importance of Gravel Coverage Calculation

Details: Accurate coverage estimates ensure you purchase the right amount of gravel, preventing project delays or material waste.

4. Using the Calculator

Tips: Enter the gravel weight in tons, gravel density (default 1.4 tons/cu yd), and desired depth (default 3 inches). All values must be > 0.

5. Frequently Asked Questions (FAQ)

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

Q2: What's a typical gravel density?
A: Most gravel weighs about 1.4 tons per cubic yard, but this varies by material type (e.g., crushed stone is typically 1.3-1.5 tons/cu yd).

Q3: How does depth affect coverage?
A: The deeper you want to spread the gravel, the less area it will cover. Doubling the depth halves the coverage area.

Q4: What if my gravel has a different density?
A: Check with your supplier for the exact density of your material, as this significantly impacts coverage calculations.

Q5: Does this include compaction or waste?
A: No, consider adding 10-15% to your calculated needs to account for compaction and project contingencies.

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