GRP riser grating panels are available in a range of thicknesses, mesh configurations, and standard panel sizes to suit different service riser layouts, spans, and loading requirements.
This page provides consolidated technical reference data, including panel thickness, weight per m², and standard size availability, to assist with system specification.
Panel selection should be based on riser void dimensions, anticipated access requirements, and the chosen support method. Non-standard sizes and service penetrations can be accommodated where required.
38x38mm Mesh GRP Panels for Riser Installations
This moulded mesh configuration is commonly specified for service riser voids requiring ventilation, drainage, and high slip resistance.
| 38x38mm mesh with 32x32mm open aperture | ||
| Panel Thickness (mm) | Weight (kg/m²) | Standard Panel Sizes Available |
| 25mm | 12.1 | 2m x 1m, 3m x 1m, 3.6m x 1.2m |
| 30mm | 14.5 | 2m x 1m, 3m x 1m, 3.6m x 1.2m |
| 38mm | 18.2 | 2m x 1m, 3m x 1m, 3.6m x 1.2m |
This 38x38mm moulded mesh configuration is commonly used within service riser voids where ventilation and high slip resistance are required.
50x50mm Mesh GRP Panels for Riser Installations
The 50mm panel thickness provides increased load capacity and span performance, making it suitable for larger riser voids or installations with higher access requirements.
| 50x50mm mesh with 42x42mm open aperture, gritted surface | ||
| Panel Thickness (mm) | Weight (kg/m²) | Standard Panel Sizes Available |
| 50mm | 23.5 | 2m x 1m, 3m x 1m, 3.6m x 1.2m |
The 50x50mm moulded mesh configuration is typically specified where increased structural depth is required and larger open apertures are acceptable within the riser environment.
Mini Mesh GRP Panels for Riser Applications
Mini mesh GRP panels are specified within service riser voids where reduced opening size is required to minimise the risk of dropped tools, fixings, or debris passing through the grating surface.
| 40x40mm mesh with 12x12mm open aperture, gritted surface | ||
| Panel Thickness (mm) | Weight (kg/m²) | Standard Panel Sizes Available |
| 14mm | 9.5 | 3.6m x 1.2m |
| 22mm | 13 | 3m x 1m, 2m x 1.5m, 4m x 1.2m |
| 30mm | 18.5 | 3m x 1m, 4m x 1.2m |
| 38mm | 24.5 | 3m x 1m, 4m x 1.2m |
The 12x12mm open aperture configuration provides enhanced containment while maintaining slip resistance and structural integrity.
Solid Top GRP Panels for Riser Installations
Solid top GRP panels are specified within service riser voids where enhanced surface coverage is required. Unlike open mesh panels, solid top configurations reduce visibility below and provide improved containment of tools, fixings, and debris.
| Solid top GRP panel manufactured over 50x50mm moulded mesh base | ||
| Panel Thickness (mm) | Weight (kg/m²) | Standard Panel Sizes Available |
| 18mm | 15 | 2.4m x 1.2m |
| 30mm | 24 | 2m x 1m, 3m x 1m, 3.6m x 1.2m |
| 41mm | 30 | 2m x 1m, 3m x 1m, 3.6m x 1.2m |
| 53mm | 34 | 3m x 1m, 3.6m x 1.2m |
These panels maintain slip resistance through an integrated gritted surface while providing a fully enclosed walking surface within the riser environment.
Technical Specification FAQs
GRP riser grating thickness should be selected based on riser void span, anticipated loading requirements, and access frequency. Thicker panels provide increased load capacity and span capability, while thinner panels may be suitable for smaller voids with reduced access demand.
Standard GRP riser grating panels are commonly manufactured in sizes such as 2m x 1m, 3m x 1m and 3.6m x 1.2m. Availability may vary depending on thickness and mesh configuration.
Yes. GRP riser grating panels can be accurately cut on site to accommodate mechanical and electrical service penetrations without compromising structural integrity when installed correctly.
Panel weight is calculated per square metre (kg/m²) and varies depending on panel thickness and mesh configuration. Weight data is provided within the specification tables for reference during system design.
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