
GRP grating open mesh lids
An open mesh GRP grating option for locations where drainage, grip and easy handling matter. The finished cover lid is 50 mm thick; colour and current test evidence can be discussed for the project.
Product range
Interchangeable GRP and polymer lids help match cover performance to each part of a cable route.
Lid options
An interchangeable cover system gives you flexibility across a cable route. A pedestrian route, maintenance area or vehicle crossing may each call for a different lid specification.
EcoTrough offers GRP grating and polymer solid top covers. These materials and their end-of-life routes should be considered separately.
Cover choices
Explore the three EcoTrough lid families. The final specification depends on load, surface use and how the trough is installed.

An open mesh GRP grating option for locations where drainage, grip and easy handling matter. The finished cover lid is 50 mm thick; colour and current test evidence can be discussed for the project.

A solid top GRP grating option combining a covered surface with low weight and durable performance. The finished cover lid is 50 mm thick; confirm the selected panel and current test evidence for the intended use.

A solid top polymer cover option being developed for more demanding areas. Ask for current test evidence and installation guidance before specifying it for traffic.
Current product information
The supplied assembly drawing shows a 50 mm GRP grating lid above a separate cable trough support lid. Finished cover lids are 50 mm thick across the range. The structural support lid is a separate component and should be checked against its own drawing.
Cover configurations are being developed with A15, B125, C250 and D400 loading categories in view. These are development targets, not completed classifications or approval for road use. Testing is continuing, and suitability depends on the specified cover, supporting construction and installation.
View support lid drawingLid selection
Use this as a starting point. Confirm the selected cover, load, support and installation detail for the exact location.
| Cover | Where it may fit | Options and evidence to confirm | Installation check |
|---|---|---|---|
| GRP open mesh grating | Routes where drainage and grip are important. | 50 mm cover thickness, colour and current loading evidence. | Confirm support detail, fixing and intended foot traffic. |
| GRP solid top grating | Areas needing a covered walking surface. | 50 mm cover thickness and current loading evidence for the specified panel. | Confirm supports, fixing and the expected use. |
| Heavy duty polymer solid top | More demanding access or crossing locations. | 50 mm cover thickness, proposed loading configuration and current test evidence. | Check supporting construction, ground conditions and installation method. |
Development targets do not establish a certified rating for a cover or completed trough installation.
Ask us to review your cover requirements
Specify with confidence
Heavy duty polymer lid options are being developed for different loading needs. Do not specify a pedestrian or vehicle application without current test evidence for the chosen cover, supporting construction and installation method.
Send us the expected traffic, ground conditions and route detail so the cover can be considered as part of the whole assembly.
View the material specificationsStart a conversation
Send your route plan, loading needs and site details. We’ll help you identify the right modules and covers.