The largest bollard or base plate that would fit inside the Bollard Signs are 156mm diameter (for the Bollard Signs with 3 sides of 270mm width) and 173mm diameter (for the Bollard Signs with 3 sides of 300mm width).
The largest bollard or base plate that would fit inside the Bollard Signs are 156mm diameter (for the Bollard Signs with 3 sides of 270mm width) and 173mm diameter (for the Bollard Signs with 3 sides of 300mm width).