Resintuff 800x800mm Square Fiber Manhole Cover, B125 Heavy Duty

800x800mm Composite Manhole Cover

The Resintuff Square Fiber Manhole provides a high-strength, lightweight alternative to traditional cast iron or concrete access solutions for drainage and utility networks. This composite unit utilizes fiber-reinforced polymer technology to deliver a B125 load rating, making it suitable for driveways, footpaths, and areas with occasional light vehicle traffic. The material composition ensures the cover remains unaffected by sewer gases or chemical exposure common in industrial environments.

Built for the Job

Contractors specify these composite covers for urban infrastructure and residential drainage projects where manual handling safety is a priority. Unlike heavy metal alternatives, this fiber-reinforced unit reduces the risk of back injuries during installation or maintenance inspections. The non-corrosive nature of the material makes it particularly effective in coastal regions or high-moisture environments where salt air or aggressive groundwater typically degrades steel or iron fittings. Site supervisors prefer this model for telecommunication pits and electrical chambers due to its non-conductive properties, providing an extra layer of safety for technicians working near live cables.

• Installation in residential driveways and private parking areas requiring B125 loading.

• Access points for municipal sewer systems and storm water management networks.

• Protection for underground utility chambers including water meters and valve pits.

• Industrial facility flooring where chemical resistance to oils and acids is required.

Product Highlights

Anti-Theft Design

The composite material has zero scrap value, effectively eliminating the risk of theft common with cast iron covers on job sites.

Load Performance

• B125 load class rating supports up to 12.5 tonnes of test load.
• Structural ribbing on the underside prevents deflection under sustained pressure.

Environmental Resistance

UV-stabilized resin prevents brittleness and color fading when exposed to direct sunlight in outdoor installations.

Technical Specifications

What’s Included

• 1 x 800mm x 800mm Composite Cover

• 1 x Matching Composite Perimeter Frame

On-Site & Workshop Notes

• Ensure the frame is fully bedded in a high-strength mortar mix to prevent movement under load.

• Clean the frame seating area before final placement to ensure the lid sits flush and prevents rattling.

• Verify that the clear opening matches the chamber dimensions to maintain structural integrity of the surrounding masonry.

• Store the units on a flat surface before installation to prevent any warping of the frame components.