Critical sites — utilities, airports, correctional, data centres — use layered perimeters: ASTM F2656 crash-rated gates and barriers (M30 to M50), anti-climb welded wire or palisade fencing, full-height turnstiles and mantraps for pedestrians, and access control tied to cameras and monitoring. No single barrier does the job; the layers buy time and prove events. S Tier fabricates and installs these systems across Manitoba.
Securing critical infrastructure is a different discipline than standard commercial gate installation. The threat profile, regulatory requirements, and consequences of failure are all elevated.
ASTM-Rated Crash Barriers
For sites that must defend against vehicle-borne attacks, we install gates and barriers rated to ASTM F2656 standards. These ratings specify the maximum vehicle speed and weight the barrier can stop:
- M30 — stops a 15,000 lb vehicle at 30 mph
- M40 — stops a 15,000 lb vehicle at 40 mph
- M50 — stops a 15,000 lb vehicle at 50 mph
Available as slide gates, vertical lift gates, wedge barriers, and bollard systems.
Redundant Security Layers
Critical sites rarely rely on a single barrier. A typical perimeter security design includes:
- Outer detection zone — sensors, cameras, and intrusion detection
- Primary vehicle barrier — crash-rated gate or bollard line
- Secondary barrier — backup gate, wedge, or tire shredder
- Pedestrian control — turnstiles, mantraps, or security vestibules
- Command and control — centralized monitoring and remote operation
What We Provide
- Site security assessments
- Crash-rated gate and barrier supply and installation
- Integration with existing security systems
- Ongoing maintenance contracts for critical uptime
- LiftMaster commercial operator specification and installation
These projects require close coordination with security consultants, architects, and facility management. Contact us to discuss your requirements.