Knowledge Hub
Practical, plain-English guides from R&B’s technical team — helping you specify manhole covers, gully gratings and access solutions right first time. Every Kitemarked R&B product is load tested to 10% above the BS EN 124 requirement.
BS EN 124 Loading Classes ExplainedWhat A15 to F900 actually mean, how to choose the right class, and the specification mistakes that lead to failed covers.Read the guide →Specifying Access Covers for Large OpeningsHow multi-part covers with removable support beams work, how to size the opening, and what the chamber needs to accommodate them.Read the guide →How to Install Multi-Part Access Covers and FramesStep-by-step installation for slide-out multi-part covers: setting out the frame, fitting the I-beams, the concrete pour, and maintenance.Read the guide →