1. What is the Stone Coverage Formula?

The Stone Coverage Formula calculates how much area (in square feet) one ton of stone will cover based on the stone's density and the desired depth of coverage. This is essential for landscaping and construction projects.

2. How Does the Calculator Work?

The calculator uses the coverage equation:

Where:

• \( Ton \) — Weight of stone in US tons
• \( Density \) — Density of stone in tons per cubic yard
• \( Depth \) — Desired depth of coverage in feet
• 27 — Conversion factor (1 cubic yard = 27 cubic feet)

Explanation: The formula converts the weight to volume using density, then calculates area coverage based on the desired depth.

3. Importance of Coverage Calculation

Details: Accurate coverage calculation helps in estimating material requirements, project costs, and ensures proper planning for landscaping or construction projects.

4. Using the Calculator

Tips: Enter weight in US tons, density in tons per cubic yard, and depth in feet. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are typical densities for common stones?
A: Crushed stone typically has density of 1.25-1.35 tons/cu yd. Lava rock is lighter (~0.5 tons/cu yd) while granite is heavier (~1.7 tons/cu yd).

Q2: How do I measure stone depth?
A: For landscaping, typical depths are 2-4 inches (convert to feet: 3 inches = 0.25 ft). For driveways, 6-8 inches is common.

Q3: Why is 27 used in the formula?
A: There are 27 cubic feet in 1 cubic yard (3 ft × 3 ft × 3 ft). This converts the volume from cubic yards to cubic feet.

Q4: Can I use this for other materials?
A: Yes, the formula works for any material where you know the density in tons per cubic yard, like gravel, sand, or mulch.

Q5: How accurate is this calculation?
A: It provides a good estimate, but actual coverage may vary slightly due to compaction, stone size, and irregular shapes.