Patio Gravel Base Calculator
Estimate compacted gravel volume for a rectangular patio base including waste allowance.
Patio Gravel Base measurements
Enter your values, then calculate.
Result
How to calculate patio gravel base
Estimate compacted gravel needed below a patio, paver area, or similar outdoor surface.
How the calculation works
Length × width × depth in feet gives cubic feet; dividing by 27 converts to cubic yards and the allowance covers grading and handling losses.
Example
A 16-by-20-foot patio with a 4-inch base and 8% allowance requires about 4.27 cubic yards.
Frequently asked questions
Does this include compaction?
It calculates compacted volume; ask the supplier how much loose material is needed to achieve that compacted amount.
Patio Gravel Base Calculator
Length × width × depth in feet gives cubic feet; dividing by 27 converts to cubic yards and the allowance covers grading and handling losses.
Let's understand your patio gravel base result.
Calculate a result above and this guide will help you interpret it using this calculator's own formula and explanation.
Pro Tips for Patio Gravel Base
- Base depth should reflect soil and load conditions.
- Order by supplier increments after applying compaction guidance.
Common Patio Gravel Base Mistakes to Avoid
- Entering inches as feet makes the estimate twelve times too large.
When to Use This Calculator
Estimate compacted gravel needed below a patio, paver area, or similar outdoor surface.