1. What is a Cubic Yard of Concrete?

A cubic yard is the standard measurement for concrete volume in construction projects. One cubic yard equals 27 cubic feet (3 feet × 3 feet × 3 feet) and is typically the unit that concrete is ordered in from suppliers.

2. How the Calculation Works

The calculator uses the formula:

Where:

• \( length \) — Length of the area in feet
• \( width \) — Width of the area in feet
• \( depth \) — Depth/thickness of the concrete in feet
• 27 — Conversion factor (1 cubic yard = 27 cubic feet)

Explanation: The formula calculates the volume in cubic feet and converts it to cubic yards by dividing by 27.

3. Importance of Accurate Measurement

Details: Precise concrete volume calculation prevents material waste and ensures you order the correct amount. Under-ordering causes delays while over-ordering wastes money.

4. Using the Calculator

Tips: Measure all dimensions in feet. For depth, convert inches to feet (e.g., 4 inches = 0.33 feet). Always round up slightly to account for spillage and uneven surfaces.

5. Frequently Asked Questions (FAQ)

Q1: How much does a cubic yard of concrete weigh?
A: Approximately 4,000 pounds (2 tons) depending on the concrete mix.

Q2: How many bags of concrete make a cubic yard?
A: About 45 80-pound bags or 60 60-pound bags equal one cubic yard.

Q3: What's the average cost per cubic yard?
A: Typically $125-$150 per cubic yard, varying by region and concrete type.

Q4: How thick should a concrete slab be?
A: Residential slabs are usually 4 inches thick, driveways 5-6 inches.

Q5: How much extra should I order?
A: It's recommended to order 10-15% more than calculated to account for spillage and uneven subgrade.