Flagstone Calculator
Divide area by supplier coverage in square feet per ton.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Get coverage from your stone yard for the specific flagstone thickness.
What the math is doing
Tons = (sq ft ÷ sq ft per ton) × (1+waste).
Frequently asked questions
Thickness mix?
Ask yard for blended coverage.
Mortar vs dry laid?
Mortar adds separate materials.
Dust cuts?
Increase waste.
Delivery minimums?
Compare to tons computed.