Specifying FRP grating across an entire industrial facility means matching the grating type to what each area will see—chemically, mechanically, and thermally. A single grating product cannot serve every zone in a chemical plant, and treating FRP grating as a commodity leads to panels that are either over-specified and expensive, or under-specified and failing early.
The matching logic starts with the chemical environment. Areas around acid storage tanks, chemical sumps, and plating lines need molded grating in a resin grade—typically vinyl ester or specialty epoxy—that can withstand continuous immersion or frequent splash contact. Molded construction provides bi-directional strength and a higher resin-to-glass ratio, which improves chemical resistance through-thickness.
Long-span walkways and cable tray bridges, where the span between supports exceeds six feet, shift the priority to stiffness. Pultruded grating, with its unidirectional fiber alignment, provides higher flexural stiffness per pound. The trade-off is that pultruded grating's strength is predominantly in the bar direction, so support steelwork must run perpendicular to the span.
Pedestrian areas subject to public access or ADA compliance bring mini-mesh grating into consideration. The reduced open area prevents heels from catching and allows wheelchair passage while maintaining drainage. Food processing rooms and battery storage areas, where spill containment matters, call for covered grating with its solid top surface.
Forklift zones and truck loading docks need heavy-duty grating with deeper bearing bars to handle concentrated wheel loads. And any enclosed occupied space—tunnel walkways, offshore accommodation modules—requires phenolic grating to meet fire, smoke, and toxicity standards.
Each area's grating choice then defines the fastening system: SS316 clips for marine and chemical exposure, galvanized carbon steel clips for dry indoor areas, and non-metallic bolting kits where complete electrical isolation is required.
This page presents the grating system specification logic. For a detailed look at where these systems are applied, see FRP Walkway Systems — Industrial Applications.