Outdoor safety planning
Fire Pit Spacing Calculator
Plan a circular seating layout from pit size, manufacturer clearance, chair dimensions, and circulation space.
Your estimate will appear here
Enter your project details and calculate for a practical planning estimate.
How this estimate works
- • Chair centers sit at the pit radius plus pit-to-chair clearance plus half the chair depth.
- • Available arc length per chair is the chair-center circumference divided by chair count; approximate side gap subtracts chair width.
- • Total clear diameter adds pit diameter, clearances, chair depths, and the aisle behind chairs.
Before you begin
- • This is a geometric layout aid, not a fire-code determination or approval of any installation.
- • Manufacturer clearances, overhead clearances, burn bans, surface requirements, ventilation, and local rules always control.
- • Arc-based side gaps are approximate because rectangular chairs do not follow a circular arc exactly.
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