Measure the outside diameter (OD) of your existing steel bollard. If you cannot measure the diameter directly, measure the circumference around the bollard with a measuring tape and use this formula:
Outside Diameter = Circumference ÷ 3.1416
Example:
If the circumference is 27.1":
27.1 ÷ 3.1416 = 8.63" OD
This corresponds to approximately an 8-5/8" outside diameter steel pipe.
If you are unsure, send Bollard Canada the outside diameter or circumference measurement, and our team can help you select the correct Bollard Cover size.