A Bollard Is Mostly A Vehicle Deterrent: If you are the average bear, odds are you don’t even know what a bollard is and you are just clicking here to extinguish your fiery curiosity. Common Type Of Bollards: The most common kind of bollards installed by contractors looks like a thick section of metal pipe imbedded into concrete, or a more fragile bollard has a perforated metal plate welded on the bottom, this plate is attached to the floor with bolts. You order the bollards