1. What is #57 Stone?

#57 stone is a specific size of crushed stone (about 3/4" to 1" in diameter) commonly used for drainage, driveways, and concrete mixes. It's named for its size classification in the ASTM standard.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• Length — Project area length in feet
• Width — Project area width in feet
• Depth — Desired stone depth in inches
• Density — Weight per cubic yard (typically 1.5-1.6 tons/cu yd for #57 stone)

Explanation: The formula first converts all measurements to yards, calculates cubic yards needed, then multiplies by density to get weight in tons.

3. Importance of Accurate Calculation

Details: Proper calculation ensures you order the right amount of material - not too little (requiring additional deliveries) or too much (wasting money).

4. Using the Calculator

Tips: Measure your project area carefully. Typical depth for driveways is 4-6 inches, for drainage projects 6-12 inches. Density varies slightly by stone type and moisture content.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between #57 and #57 limestone?
A: #57 refers to size only. #57 limestone is specifically limestone of that size, while #57 stone could be granite, trap rock, etc.

Q2: How much area does one ton of #57 stone cover?
A: At 4" depth, one ton covers about 60-65 square feet. At 6" depth, about 40-45 square feet.

Q3: Why is density important?
A: Different stone types and moisture conditions affect weight. Wet stone can weigh significantly more than dry.

Q4: Should I order extra?
A: It's common to order 5-10% extra to account for compaction, uneven surfaces, and calculation errors.

Q5: Can this calculator be used for other stone sizes?
A: Yes, but you'll need to adjust the density value based on the specific stone type and size.