To guarantee pedestrian comfort, the allowable deflection of FRP grating is usually capped at 6 mm. For heavier temporary loads, a larger deflection might be allowed, but deflections over 12 mm are not recommended—this is because excess deflection can cause hold-down clips to exert prying force and may loosen fasteners. Using long panels with a multi-span structure can reduce panel deflection. When you compare the design load with the grating’s safe load, you’ll find a high safety factor. For FRP grating, design is often determined by performance rather than just strength.
2. Identify Constraints
The selection of a grating system may depend on the height and/or spacing of the load-bearing bars. For a specific installation, there may be various requirements, such as existing supports, compatibility with high heels, protection against falling objects, drainage needs, sun penetration, ventilation, and even whether it needs to withstand vehicular traffic. All these factors must be taken into account.
3. Pick the Right Resin
Polyester resin works for most common environments.
Vinyl ester resin is ideal for harsh chemical settings, as it offers extra corrosion protection.
Phenolic resin is suitable for environments where fire, smoke, or toxicity are the main concerns.
4. Optimize Span Length
After choosing the initial grating type, figure out the maximum span needed to meet the load requirements and allowable deflection. Then compare this maximum span with the planned dimensions and decide on the support configuration.
5. Select Appearance Features
FRP grating comes with various options for load-bearing bar colors, surface roughness, and finishes. Yellow and light gray are the standard colors for load-bearing bars.
Fine grit surfaces are good for barefoot walking.
Standard medium grit is suitable for industrial use.
Coarse grit can be chosen if lubricants or debris buildup are expected.
A polyurethane topcoat can provide better UV protection or be customized to specific colors.
Anping Junhe Metal Products Co., Ltd. is a leading manufacturer, processor, and supplier of metal products, specializing in the production and distribution of various metal grating solutions. With years of experience in the industry, we have established a strong reputation for delivering high-quality products that meet the diverse needs of our global clientele.
