Choosing between steel and concrete bollards is one of the most common specification questions we receive. Both are widely used across the UK — from town centres and retail parks to highways and industrial sites. This head-to-head comparison helps you choose the right material for your project.
Steel vs Concrete Bollard: Quick Comparison
| Factor | Steel Bollard | Concrete Bollard |
|---|---|---|
| Cost (supply) | £150–£800+ | £80–£350 |
| Installation complexity | Moderate | Simple–moderate |
| Impact resistance | High (energy absorbing) | High (rigid/brittle) |
| Appearance | Sleek, architectural | Utilitarian, heavy |
| Customisation | Extensive (colours, caps, logos) | Limited (paint, aggregate) |
| Maintenance | Low (check coating) | Very low (inspect for cracks) |
| Repairability | Replaceable post; socket reusable | Full replacement required |
| Weight | Light–moderate | Heavy (250–800kg) |
| Lifespan | 15–30 years+ | 20–50 years |
| PAS 68 / IWA 14 available? | Yes | Yes |
| Removable option? | Yes | No |
Steel Bollards: Strengths and Limitations
Strengths
- Energy absorption: Steel deforms on impact rather than shattering — reduces secondary injury risk
- Aesthetic versatility: Available in any RAL powder coat colour; dome, flat, or decorative cap options
- Access control: Removable and automatic variants allow controlled vehicle access — not possible with concrete
- Lightweight: A 114mm CHS steel bollard weighs 15–30kg vs 250–500kg for concrete — far easier to handle
- Security certification: PAS 68-rated and IWA 14-1-rated steel bollards widely available
Limitations
- Cost: Premium steel (stainless, PAS 68) can be expensive
- Corrosion: In coastal environments, even galvanised steel needs periodic inspection
- Vandalism: A hollow steel bollard can be damaged by determined attack
Concrete Bollards: Strengths and Limitations
Strengths
- Mass: 250–800kg provides high passive resistance to vehicle impact
- Durability: Properly specified concrete bollards last 40–50+ years with minimal maintenance
- Low maintenance: No coating to check or replace; just inspect annually for cracking
- Cost: Standard precast concrete bollards (£80–£200) undercut equivalent steel
- Vandal resistance: Difficult to damage with hand tools
Limitations
- Weight: 250–800kg requires mechanical handling (telehandler or crane)
- Brittleness: Under impact, concrete shatters — debris risk in pedestrian areas
- No access control: Cannot be made removable without major engineering
- Aesthetics: Standard concrete looks utilitarian; architectural finishes add cost
PAS 68 / IWA 14-1 Security
Both steel and concrete bollards can be certified to PAS 68 or IWA 14-1. The certification is product-specific — only products with documented, valid test results provide genuine security assurance. Never assume an untested product provides security.
Verdict: Which Should You Choose?
Choose Steel When:
- Aesthetic integration matters
- Access control (removable or automatic) is required
- PAS 68 / IWA 14 rated security with specific certification is needed
- Maintenance-friendly design is a priority
Choose Concrete When:
- Minimum maintenance over long lifespan is the priority
- Budget is tight and utilitarian appearance is acceptable
- The application is industrial or highways-focused
- No access requirements
Barriers Co supplies both steel and concrete bollards across the UK with expert specification advice. Browse our full bollard range to compare options for your project.