For property owners, size is linked to safety and insurance. A bollard too small for the risk may not provide adequate protection, and insurers may not consider it compliant.
Josh from First Choice Bollards explains:
90mm:
Often used for residential driveways, garage protection, and low-impact pedestrian zones.
114mm:
A strong middle option, common in commercial sites such as retail entrances and small warehouses.
140mm and above:
Heavy-duty, often used in loading docks, workshops, car yards, and areas with larger vehicles.
| Diameter | Typical Use | Height (Above Ground) | Wall Thickness | Installation Options | Notes |
|---|---|---|---|---|---|
| 90mm | Residential driveways, garage protection, light-duty pedestrian zones | 900–1000mm | 5mm | In-ground or removable | Affordable option, suitable for cars but not heavy vehicles |
| 114mm | Retail shopfronts, small warehouses, commercial entrances | 900–1200mm | 5–8mm | In-ground, surface-mounted, or removable | Most common size across Melbourne and Geelong |
| 140mm+ | Workshops, loading docks, car yards, industrial forecourts | 1000–1200mm | 8mm | In-ground (fixed) | Heavy-duty, designed for trucks and high-risk sites |
Residential:
Driveways, garages, and small parking areas often need 90mm removable bollards.
Commercial:
Warehouses, loading docks, and car yards require larger diameters, often 114mm or 140mm.
Retail and public spaces:
A balance between pedestrian flow and vehicle control, often around 114mm in-ground.
Custom solutions:
Some sites require non-standard diameters, taller bollards, or reinforced options for extreme risk.
Size mistakes are costly. Too small, and the bollard may fail under impact. Too large, and money is wasted on unnecessary strength.
Professional advice ensures bollards:
