For public surfaces and walkway surfaces at height. 38 x 38 mm (12 x 12 mm aperture). Medium (general grade) and fine (barefoot friendly) grit surface.
Fibreglass Regular Mesh Grating
FRP (Fibre Reinforced Polymer), also commonly known as fibreglass, regular mesh grating, is a versatile, all-round performer — ideal for a wide range of flooring applications. With a 31 mm aperture, it’s a popular choice for walkways, stairs, catwalks, and platforms in industrial settings. Durable, low maintenance, and simple to install, it also offers excellent slip resistance and corrosion protection.
Safety and Quality Above the Standard
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.
Our Regular Mesh Grating is a moulded Fibreglass Reinforced Polymer panel engineered for long-term performance in New Zealand’s industrial and marine environments. It delivers a high strength-to-weight ratio, slip resistance, and total corrosion protection — with no need for galvanising or painting.
Lightweight, non-conductive, and UV-stabilised, it provides safe, low-maintenance access for walkways, platforms, wash bays and service decks.
Typical Applications: Walkways • Platforms • Trench Covers • Wash Bays • Access Decks • Cooling Towers
All moulded panels use a hand lay-up open-mould process, ensuring complete fibre wet-out, uniform resin distribution and precise bar geometry.
Reinforcement: Continuous E-glass roving laid bidirectionally for balanced strength.
Resin Systems:
- Isophthalic Polyester (ISO) – The reliable, cost-effective standard for NZ projects. Excellent balance of strength, UV stability and water resistance.
- Vinyl Ester (VE) – Premium resin for maximum durability. Outstanding chemical, solvent, and thermal resistance; ideal for marine and high-corrosion environments.
See our “Resin Comparison – ISO vs VE” technical document for detailed resin cross-comparison.
Pigments are VOC free (volatile organic compounds) UV inhibitors and fire retardants are blended into every batch for consistent colour and long-term stability.
The surface profile determines how our grating grips, drains, and wears. Each texture is mould-formed for dimensional accuracy and long-term consistency.
Our Three Surface Types
- Concave (V-Top) – The natural moulded surface. Each load bar forms a shallow V that sheds water and provides light texture without grit — ideal for wash-down or heavy grease zones.
- Fine Grit – 125–210 µm (≈ FEPA P120–P80) Concave bar tops are ground flat before applying a fine grit, producing a smooth yet slip-resistant finish. Common for barefoot-friendly areas.
- Medium Grit – 180–425 µm (≈ FEPA P100–P40) Applied directly to the concave V-top during curing for maximum bond strength and wear life. Our standard finish for industrial walkways and outdoor platforms.
Additional Information
Every grit layer is integrally bonded during curing, so it becomes part of the structure. All cut edges are trimmed post moulding and sealed with matching resin for moisture and UV protection. We reference FEPA grading for clear specification, relatability, and global comparability.
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.
Fabrication & Cutting Services
We operate a full in-house fabrication facility supplying grating pre-cut, sealed and installation ready.
Capabilities Include:
- CNC panel saws for precision straight-line and batch cutting
- Waterjet cutting for curved, shaped, or penetrated layouts
- Edge banding available from the factory on an indent basis
- In-house resin sealing of all cut edges for moisture and UV protection
- Custom fabrication of framed assemblies and colour-contrasted sections
Full FRP panels are produced to a typical dimensional tolerance of +/- 2 mm. When custom cutting is required, the final supplied size is confirmed during the design process. Desired finished dimensions must allow for saw kerf and the location of load bars, since some cuts may pass directly through a load bar which can influence the achievable tolerance. Our team works through these considerations at quotation stage so that supplied panels land as close as possible to the intended finished size.
Fabrication is performed in New Zealand using FRP-approved resins and traceable production batches. Panels can be supplied to fit drawings, pre-drilled or framed for fast installation.
Installation Overview
Regular Mesh Grating installs quickly using standard fixing systems matched to the support structure and environment. Hardware options are available for different loading and layout conditions. For detailed methods and component selection, refer to our Grating Hardware page.
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!
Ancillary Products
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