GRP grating (also called FRP or fibreglass grating) comes in standard panel sizes of 2m x 1m, 3m x 1m and 3.6m x 1.2m, in thicknesses from 14mm to 53mm. The tables below show the mesh size, weight per m² and panel sizes for each type. Panels can be supplied full size or cut and fabricated to your drawings.
Choose by Thickness
38mm GRP Grating
Industrial flooring, platforms and rooftop walkways. The most widely used depth.
Standard Industrial GRP Grating
| Mesh Size: 38 x 38mm Open Hole: 32 x 32mm | ||
| Panel Thickness | Weight kg/m2 | Panel Sizes Available |
| 25mm | 12.1 | 2m x 1m, 2m x 1.22m, 3m x 1m, 3.6m x 1.2m |
| 30mm | 14.5 | 2m x 1m, 2m x 1.22m, 3m x 1m, 3.6m x 1.2m |
| 38mm | 18.2 | 2m x 1m, 2m x 1.22m, 3m x 1m, 3.6m x 1.2m |
| 50mm | 23.5 | 2m x 1.22m |
Standard Gritted GRP Grating
| Mesh Size: 50 x 50mm Open Hole Size: 42 x 42mm Surface: Gritted for slip resistance | ||
| Panel Thickness | Weight kg/m2 | Panel Sizes Available |
| 50mm | 23.5 | 2m x 1m, 3m x 1m, 3.6m x 1.2m |
Mini Mesh GRP Grating
| Mesh Size: 40 x 40mm Open Hole Size: 12 x 12mm Surface: Gritted, suitable for narrow wheels and high heel protection | ||
| Panel Thickness | Weight kg/m2 | 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 |
Solid Top GRP Grating Panels
| Mesh Size: 50 x 50mm Open Hole Size: 42 x 42mm Surface: Solid top with gritted finish for complete coverage | ||
| Panel Thickness | Weight kg/m2 | 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 |
Loads, Spans & Specification
Panel thickness is only part of the picture. The load a panel can carry depends on the span between supports, the load type and the allowable deflection. Our load tables show how each panel performs, and our guides explain how to choose:
GRP Panels: Sizes, Thickness & Mesh Options - FAQs
Standard industrial grating, standard gritted (50×50mm), mini mesh (for narrow wheels/high heels) and solid-top gritted panels.
Common thicknesses include 14, 18, 22, 25, 30, 38, 41, 50 and 53 mm. Standard panel sizes typically include 2 m×1 m, 3 m×1 m, 3.6 m×1.2 m and selected larger formats (see tables above).
38×38 mm mesh (32×32 mm open hole) for standard industrial grating; 50×50 mm mesh (42×42 mm open hole) for gritted; 40×40 mm mesh (12×12 mm open hole) for mini mesh.
Gritted anti-slip and concave finishes as standard; solid-top panels are also available with a gritted surface for full coverage.
Yes—panels can be cut to size, edged and supplied as part of a designed system (walkways, platforms, trench covers, access flooring).
Yes—resin systems can be specified for fire retardancy, low smoke and chemical resistance based on the operating environment.
Yes. FRP (fibre-reinforced plastic) and GRP (glass-reinforced plastic) describe the same material: glass fibres set in a resin matrix. GRP is the usual term in the UK; FRP is more common in the US and internationally.
Need a Price for GRP Grating Panels?
Advice is available on panel selection, loading requirements, span capability, fabrication options and installation methods. Drawings, specifications and project information can be reviewed to assist with product selection and system design.