Bollard Spacing Calculator

Calculate anti-vehicle bollard spacing.

Linear measurement in the specified unit.
ft
Horizontal measurement perpendicular to length.
in
Distance across a circle through its center.
in

Results

Max Spacing:
Maximum allowed or calculated value.
-in
Bollards Needed:
Calculated bollards needed based on your inputs.
-
Clear Opening:
Calculated clear opening based on your inputs.
-in
Reference: ASIS/UL Standards. Anti-ram bollard design.