Calculating Pea Gravel

Pea Gravel Calculator

Results

Total Cubic Yards Needed: 0

Total Tons Needed: 0

Total Cubic Feet: 0

Estimated Total Cost: $0.00

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How to Calculate Pea Gravel for Your Project

Pea gravel is a popular choice for walkways, driveways, and playgrounds due to its smooth texture and natural aesthetic. However, ordering the wrong amount can lead to wasted money or unfinished projects. This calculator helps you determine exactly how many cubic yards or tons of gravel you need based on your project dimensions.

The Pea Gravel Calculation Formula

Calculating the volume of pea gravel involves a simple geometric formula for volume, converted into the units used by landscape suppliers (usually cubic yards or tons):

1. Calculate Square Footage: Length (ft) × Width (ft) = Area (sq ft)
2. Convert Depth to Feet: Depth (inches) / 12 = Depth (ft)
3. Calculate Cubic Feet: Area (sq ft) × Depth (ft) = Volume (cu ft)
4. Convert to Cubic Yards: Volume (cu ft) / 27 = Cubic Yards
5. Convert to Tons: Cubic Yards × 1.4 = Total Tons (approximate)

Realistic Example

Suppose you are building a small pea gravel patio that is 15 feet long and 12 feet wide. You want a standard depth of 3 inches for comfortable walking and stability.

• Step 1: 15 ft × 12 ft = 180 sq ft.
• Step 2: 3 inches / 12 = 0.25 ft.
• Step 3: 180 sq ft × 0.25 ft = 45 cubic feet.
• Step 4: 45 / 27 = 1.67 cubic yards.
• Step 5: 1.67 × 1.4 = 2.34 tons.

Important Tips for Pea Gravel Projects

Recommended Depth: For most walkways and patios, a depth of 2 to 4 inches is ideal. If the gravel is too shallow, the ground underneath will show; if it is too deep (over 4 inches), it becomes difficult to walk through as your feet will sink.

Compaction and Settling: Pea gravel does not compact like crushed stone, but it will settle slightly over time. It is generally recommended to order about 5-10% more than your exact calculation to account for uneven sub-bases and edge spillage.

Weight Variations: While the average weight is 2,800 lbs (1.4 tons) per cubic yard, this can vary based on the moisture content and the specific source of the rock. Always check with your local supplier for their specific weight-to-volume ratio.