Our most commonly used mesh product. 38 x 38 mm (31 x 31 mm) aperture. Medium (general grade) grit surface.
Pultruded Grating
Our Pultruded Grating is a Fibreglass Reinforced Polymer (FRP) system engineered for applications requiring longer spans, higher load capacity and enhanced directional strength. Unlike moulded grating, pultruded grating utilises high-strength structural load bars running in a single direction, delivering improved spanning performance and reduced deflection under load.
Combining excellent corrosion resistance, slip resistance and strength-to-weight performance, it provides a durable, low-maintenance access solution for industrial, marine and infrastructure environments. Commonly specified for walkways, elevated platforms, service platforms, trench covers and solar farm access systems, Pultruded Grating is designed for applications where structural efficiency, long spans and long-term durability are key considerations.
Safety and Quality Above the Standard
- VOC-Free Pigment System
- Fire Tested to ISO 9239 1 2010 and ASTM E84
- Asbestos Free Verified under AS 4964 2004
- Load Tested to AS NZS 1170.0 with CPEng Verification
- Anti Slip Performance Tested to AS NZS 4586 2004
- Water Absorption Tested to ASTM D570
- Electrical Insulation Tested to ASTM D495 and ASTM D149
Typical Applications
- Solar Farm Platforms
- Elevated Walkways
- Trench Covers
- Industrial Access Flooring
- Aquatic Centres
- Marine Infrastructure
- Water Treatment Facilities
What Sets us Apart
We are a New Zealand family-owned and operated company with a fully equipped workshop in the Bay of Plenty. We provide an in-house cutting service supported by advanced equipment and proven fabrication methods, and we can accommodate non-standard sizes and finishes when required. Our team is always ready with technical support and practical design guidance, and we maintain significant stock on-site to keep lead times short and projects moving.
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Production Oversight
Our products are produced exclusively through accredited manufacturing partners that operate under ISO 9001 quality systems. This gives us direct control over specifications, consistency, and traceability.
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Verified Testing and Compliance
Our products are independently tested and verified to recognised standards, supported by third-party laboratories and CPEng engineering where required, ensuring dependable performance.
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Environmental Responsibility
We are guided by ISO 14001:2015 environmental management principles to reduce waste, improve efficiencies, and minimise our operational impact.
Resin Systems
Our moulded panels use a hand lay-up open-mould process, ensuring complete fibre wet-out, uniform resin distribution and precise bar geometry.
Developed through more than a decade of refinement across resin chemistry, pigment stability, UV protection and manufacturing consistency, our resin platforms are engineered for long-term industrial performance in demanding environments.
- ISO-PLEXTM (Isophthalic Polyester Resin)
Developed for dependable all-round industrial performance, ISO-PLEXTM combines balanced resin chemistry, UV resistance and moisture protection into a versatile FRP system designed for reliable structural performance and long-term visual consistency across outdoor and industrial applications. - VIN-PLEXTM (Vinyl Ester Resin)
Our premium corrosion-resistant resin platform, VIN-PLEXTM is engineered for higher-exposure environments where chemical resistance, moisture protection and long-term durability are critical. Refined to deliver enhanced performance in marine, wastewater, and aggressive industrial applications.
We offer multiple pultruded load bar profiles to suit different applications and load requirements.
I-Bar Pultruded Grating
Designed for excellent drainage and airflow while maintaining strong spanning capability. Commonly used in industrial walkways and elevated platforms.
T-Bar Pultruded Grating
Provides a broader walking surface and improved comfort underfoot while retaining excellent load performance. Often selected where pedestrian traffic is frequent.
Heavy Duty Options
Heavy-duty pultruded systems are available for increased span requirements and higher point loading applications.
Our Surface Systems
Pultruded grating utilises precision-manufactured load bars produced through a continuous pultrusion process. Depending on the application requirements, pultruded grating can be supplied with an integral ribbed surface profile or enhanced with one of our bonded CARBIXTM anti-slip surface systems. Cover Top variants are also available with a moulded diamond-top profile or bonded grit surfaces.
Developed through years of real-world industrial application and refinement, our surface systems are designed to balance slip resistance, wear life, drainage performance and long-term durability.
Open Pultruded Grating
- Integral Ribbed Surface
An integral ribbed surface profile formed during the pultrusion process. The continuous ribbed texture provides light underfoot grip without the use of bonded grit and is commonly selected where drainage, ease of cleaning and general pedestrian access are prioritised.
- CARBIXTM Fine Grit
Applied directly to the pultruded load bars, CARBIXTM Fine Grit uses controlled grit grading and bonding technology to create a refined anti-slip surface with a smoother underfoot feel. Designed to enhance traction while maintaining comfort in pedestrian-focused, commercial and general access environments. Typical grit sizes are approximately 125-210 μm (similar to P120-P80 abrasive media), making it well suited to walkways, access platforms and other environments where underfoot comfort and slip resistance must be balanced.
- CARBIXTM Medium Grit
Applied directly to the pultruded load bars, CARBIXTM Medium Grit is our standard industrial anti-slip surface system. Developed to maximise grit retention, wear life and long-term traction performance in demanding outdoor and industrial environments while maintaining practical cleanability and drainage characteristics. Typical grit sizes are approximately 600 μm (similar to P40 abrasive media), making it a trusted choice for processing plants, infrastructure, workshops and other high-traffic environments where dependable slip resistance is required.
Pultruded Cover Top
- Diamond Top
A moulded raised-pattern surface designed to provide additional underfoot texture without the use of bonded grit. Commonly selected where moderate slip resistance, durability and ease of cleaning are required while maintaining a fully enclosed walking surface.
- CARBIXTM Fine Grit
Applied directly to the Cover Top surface, CARBIXTM Fine Grit uses controlled grit grading and bonding technology to create a refined anti-slip surface with a smoother underfoot feel. Designed to enhance traction while maintaining comfort in pedestrian-focused, commercial and general access environments. Typical grit sizes are approximately 125-210 μm (similar to P120-P80 abrasive media), making it well suited to walkways, access platforms and other environments where underfoot comfort and slip resistance must be balanced.
- CARBIXTM Medium Grit
Applied directly to the Cover Top surface, CARBIXTM Medium Grit is our standard industrial anti-slip surface system and the most commonly specified surface for pultruded Cover Top grating. Developed to maximise grit retention, wear life and long-term traction performance in demanding outdoor and industrial environments. Typical grit sizes are approximately 600 μm (similar to P40 abrasive media), making it a trusted choice for processing plants, infrastructure, workshops and other high-traffic environments where dependable slip resistance is required.
FIRE PERFORMANCE
- ISO 9239-1 / AS 9239.1 (Reaction to Fire for Flooring Materials) – Tested by NZWTA Laboratories (Reports 2018 & 2020).
Critical Radiant Flux (CRF): 10.9 kW/m² – Exceeds the 4.5 kW/m² requirement for NZ & Australia.
Smoke Value: ≈ 210 %.min – Very low smoke generation, excellent visibility retention.
Result: Fully compliant with NZ Building Code (C/VM2) and Australian NCC equivalence - ASTM E84 – Steiner Tunnel Test – SGS Report (Dec 2022).
Flame Spread Index (FSI): 20 • Smoke Developed Index (SDI): 400 Classification: Class A (≤ 25 FSI / ≤ 450 SDI) — highest U.S. rating.
DURABILITY & UV EXPOSURE
- ASTM G154 Accelerated UV Exposure – Samples exposed 2,500 hours (≈ 7–10 years real-world) showed no statistically significant strength loss
- Complies with NZ Building Code Clause B2 (Durability).
- Expected service life well beyond 15 years with routine maintenance.
MATERIAL SAFETY
- AS 4964 (Qualitative Identification of Asbestos) – Independent testing confirmed no asbestos detected in any FRP Limited product.
WATER ABSORPTION TESTING
Testing was carried out by SGS. in accordance with ASTM D570-22 on our moulded FRP products manufactured using ISO and VE resin systems.
TEST CONDITIONS:
Dried at 50 ± 2 °C for 24 h
Soaked in water at:
- 23 °C for 24 h
- 100 °C for 2 h
- 50 °C for 48 h
MEASURED WATER ABSORPTION (%):
| Condition | Sample A | Sample B | Assessment |
|---|---|---|---|
| 23°C / 24 h | 0.17% | 0.09% | Excellent resistance – negligible absorption |
| 100 °C / 2 h | 0.49% | 0.47% | High stability – minimal uptake under heat |
| 50 °C / 48 h | 0.52% | 0.71% | Strong retention – remains below 1% threshold |
INTERPRETATION:
Results demonstrate consistently low water absorption across all temperature and duration tests, confirming a dense, well-cured laminate structure.
Moisture uptake remained below 1%, supporting dimensional accuracy, mechanical reliability, and long-term surface integrity.
Performance levels are within the expected range for high-grade structural FRP composites and trend toward the lower end of typical absorption values, indicating slightly improved resistance compared with standard industry benchmarks.
LOW VOC PIGMENT
Our colour system utilises a polyester-based pigment dispersion that chemically bonds within the FRP matrix, rather than just coating it. This 100% solids, low-VOC formulation delivers cleaner processing, longer-lasting colour, and superior UV stability compared to solvent-borne alternatives. It’s a smarter, more sustainable way to colour FRP.
ELECTRICAL PROPERTIES – TESTING IN PROGRESS
- Arc Resistance (LW): ASTM D-495 – pending
- Dielectric Strength (LW): ASTM D-149 – pending
- Dielectric Strength (PW): ASTM D-149 – pending
SLIP RESISTANCE
- AS/NZS 4586 (Wet Pendulum Method) – Independently tested by ISTS (NATA Accredited).
- All surfaces classified V – Very Low Risk of Slip (BPN > 54).
- Complies with NZBC Clauses D1 (Access Routes) and F4 (Safety from Slipping).
ELECTRICAL INSULATION TESTING
Testing was carried out by SGS in accordance with ASTM D495-22 and ASTM D149-20 on our FRP moulded products manufactured using ISO and VE resin systems.
TEST CONDITIONS:
Dry Arc Resistance (ASTM D495-22)
- Arcing voltage: 12.5 kV • Electrode gap: 6.35 mm • Environment: 23 °C / 50 % RH
Dielectric Breakdown (ASTM D149-20)
- Transformer oil medium • Voltage rise: 3000 V/s • Frequency: 50 Hz
MEASURED ELECTRICAL PERFORMANCE:
| Property | Sample A (ISO resin) | Sample B (VE resin) | Assessment |
|---|---|---|---|
| Arc Resistance Time (s) | 182.5 s | 146.2 s | Excellent surface insulation – high resistance to tracking |
| Dielectric Strength (kV/mm) | 15.6 kV/mm | 12.5 kV/mm | Strong electrical barrier – stable under high voltage |
INTERPRETATION:
Results confirm both resin systems deliver high-grade electrical insulation consistent with the requirements of ASTM D495 and D149.
The ISO-resin laminate achieved the highest overall performance, showing extended arc-resistance duration and greater dielectric strength, indicating a dense, well-cross-linked matrix with minimal conductive pathways.
The VE-resin laminate also exhibited strong insulating capability, remaining well within the range expected for premium structural FRP composites.
Electrical performance across both systems supports their suitability for installations requiring high-voltage isolation, reduced surface tracking, and long-term reliability in wet or industrial environments.
Our workshop can provide:
- Cut-to-size panels
- Custom fabrication
- Stair tread manufacture
- Fixing clip supply
- Site-specific layout assistance
316 stainless steel fixing clips and installation hardware are available for multiple support configurations.
Available Colours
RAL 7015 Slate Grey
RAL 6010 Grass Green
RAL 1021 Colza Yellow
RAL 7035 Light Grey
The examples shown are of colours typically stocked; other colours are available upon request.
Why Choose FRP Ltd
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NZ Family-Owned and Operated
We understand what matters to you as a proudly NZ family-owned and operated business. We're dedicated to providing reliable, locally supported solutions that meet the needs of New Zealand industries.
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Expertise and Quality
We offer our customers premium products that adhere to industry standards, ensuring durability and reliability.
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Competitive Pricing
We deliver exceptional value by combining high-quality materials with cost-effective pricing, ensuring you receive the best products at a reasonable cost.
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Proven Track Record
We are proud to have built a reputation nationwide and across industries for delivering reliable product solutions that meet and exceed customer expectations.
Have a Question? Get Product Advice.
We're here to help! If you have any questions, need support with a product, or would like a copy of the standards we adhere to, please don't hesitate to contact us. We look forward to assisting you!
