FRP Manhole Cover & Composite Access Cover
FRP composite manhole covers give safe, rustproof access to sewer, drainage and utility chambers. Lightweight with high load ratings and optional locking, they replace cast iron and steel covers.
FRP (fiberglass reinforced plastic), also called BMC or SMC composite, manhole covers are molded as a one-piece cover and frame that will not rust, seize or spark. They provide safe access to sewer, stormwater, water, telecom and electrical chambers.
Compared with cast iron, composite covers are far lighter for crews to lift, have no scrap value so they resist theft, and dampen road noise. They are available in clear opening sizes from small inspection chambers up to heavy traffic load classes.
We supply round and square covers with optional bolt locking, sealed tops and load classes matched to pedestrian, driveway or roadway use.
Key Benefits
- Will not rust, seize or corrode after years underground
- Lightweight for safe single-person lifting and maintenance
- No scrap value, reducing cover theft
- Non-sparking and quiet under traffic
- Optional locking and sealed, anti-odor tops
Typical Specifications
| Material | BMC / SMC / FRP composite |
| Shape | Round / square |
| Clear opening | 300–1000 mm, custom |
| Load class | A15 / B125 / C250 / D400 |
| Frame | Integral composite frame |
| Locking | Bolt / key lock option |
| Color | Black, gray, green, custom |
Common Applications
- Sewer and stormwater chambers
- Water and valve pits
- Telecom and electrical access
- Municipal roads and sidewalks
- Industrial and plant drainage
- Parking and driveways