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Traditional steel guardrails still dominate U.S. installations, but a small set of manufacturers is pushing a shift toward flexible polymer systems designed to absorb energy and reduce floor damage. That evolution is gaining attention as employers confront rising incident volumes and more mixed-traffic environments in modern warehouses.

A-Safe, a British firm that entered the U.S. market more than a decade ago, pioneered a polymer guardrail design in 2001. Founded in 1984 in the U.K., the company is known for developing the first industrial polymer safety barrier and supplies impact-protection systems for warehouses, manufacturing plants, airports and logistics hubs worldwide.

It recently introduced its fourth-generation barrier system with embedded impact-monitoring hardware. Senior Vice President Dave Dalleske said the move reflects a broader shift in how facility operators view safety infrastructure. “Traditionally, if you go into any one of those environments, you're going to see steel guardrail,” he said.

Steel or other metal guardrails are usually installed around storage racks, building columns, machinery or pedestrian aisles, but when a forklift strikes it, he added, “it’s a mangled mess," with concrete underneath torn up that forces replacement . depending on how the system is anchored to the slab. 

Metal sleeves are a common alternative to bolted or welded anchors for warehouse construction.

A-Safe’s guardrails are extruded from a proprietary multi-layer polymer that flexes on impact and returns to shape.

The design is intended to dissipate energy through the rail rather than transferring it into the anchors or slab. The company tests its systems to PAS 13, a workplace barrier impact-rating code developed in the U.K. and verified by TÜV Nord, a Germany-based international company that provides testing, inspection, certification and training services.

While impact ratings vary by configuration, the company’s new barrier line is engineered to withstand forklift strikes of up to roughly 25,000 lb at 6 mph.

The key difference, Dalleske said, is not the impact itself but what happens after. Steel and softer metals such as aluminum deform, whereas polymer “flexes back into shape,” he added, eliminating repeated repairs, repainting and anchor replacement.

For many facilities, that lifecycle difference is the economic case. “Some customers have full-time employees whose job is going and painting steel barriers." Dalleske said. "There’s ongoing maintenance cost, downtime and floor repair." He added that "It’s not unreasonable” for owners to see payback in less than two years.

Passive Guardrails Become Data Infrastructure

A-Safe’s newest generation also incorporates what it calls Active Technology—sensors and wireless communications modules embedded in select bollards and rails to record impacts by time, location and severity.

Data is transmitted through a private network to a web platform that generates heat maps of high-frequency collision zones.

Dalleske described it as an incident-management tool. “It measures the time, the date and the intensity of the impact,” he said.

The system can notify staff, generate alerts for inspection and store data that identifies trends, allowing facilities to identify recurring impact zones and adjust operations. The company previously applied similar monitoring to pallet racks through its RackEye product line, which several manufacturers including Cummins Inc. have adopted.

“What A-Safe is becoming is a data analytics company to improve that level of operational efficiency,” Dalleske said. “We provide safety for free at that point.”

For now, the analytics platform is largely standalone rather than integrated with warehouse-management or maintenance software, although broader connectivity is on the company’s roadmap.

At a Midwestern facility operated by Cummins, the global engine and power-systems manufacturer, Area Health, Safety and Environment Leader Andrew Hoene said A-Safe barriers have eliminated a recurring source of downtime associated with bent steel rails and damaged anchors.

With steel, repeated impacts caused posts to “start pulling from the ground,” he said, requiring maintenance crews to remove damaged pieces and wait for replacements. By contrast, the polymer system has required no replacements in two to three years of use.

“There’s been plenty of incidents where forklifts have run into the A-Safe and the A-Safe did what it was supposed to do,” Hoene said. “If that was steel, that would have probably damaged the steel barrier pretty significantly.”

The site also added tall topple-prevention barriers along pedestrian aisles next to vertically stacked inventory. “Since the change, I don’t think we’ve had anything really fall,” he said.

Hoene added that internal and external auditors have begun noting the polymer systems as a best practice compared with other Cummins locations.

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Adoption Remains Nascent as Retrofits Lead the Market

Despite growing interest from e-commerce, automotive and cold-storage owners, polymer guardrails still represent a small share of the market.

“I think the market share of polymer barriers is certainly less than 5% of all installations across the U.S.,” Dalleske said, noting that “95% plus” of projects default to steel due to familiarity and first cost.

Within A-Safe’s business, about 80% of U.S. revenue comes from retrofits and 20% from new construction. Projects with high collision rates—doorways, rack ends, loading areas—often adopt polymer first, then expand usage after seeing performance, he said.

Hoene said early design involvement is the ideal time to specify polymer barriers. Having A-Safe personnel measure aisles and clearances “allows us to get the specific size we want” rather than relying on off-the-shelf steel.

Cold-storage environments, where forklift operators move quickly in harsh temperatures and visibility is limited, represent a significant growth area, Dalleske said.

High-throughput distribution centers, food and beverage plants, and automotive and general manufacturing sites are also active adopters, particularly where impacts can shut down production or damage process machinery.

Cost and familiarity remain primary obstacles. Hoene said customized polymer systems can carry longer lead times and higher initial costs. “Sometimes the cost can be kind of a roadblock,” he said, although his team concluded “it’s just worth the time” for a purpose-built system that better protects aisles and workers.

For contractors, Dalleske said the shift depends on owner-driven specification. “With general contractors, it’s generally going to be the lowest cost product that wins,” he said. Many specifiers also hold to “a ‘this is the way we’ve always done it’ mentality” with steel.

Still, as warehouses grow more automated and densely configured, the consequences of unreported impacts—equipment downtime, racking failures and slab damage—continue to rise.

Dalleske said the question for capital-project teams is whether next-generation logistics centers will treat guardrails as expendable steel or as a more durable data-producing part of the infrastructure.