100mm Frame Depth. Recessed Steel Manhole Covers for Block Paving & Slabbed Areas Usage: For internal usage and areas with infrequent slow moving traffic up to 10 tonnes GLVW Designed for domestic driveways and patio areas 80mm deep Recessed lids enabling block paving / slab infill Solid steel base plate Recessed lids with robust lifting eyes Angled inner of lid to aid cover removal Fully flanged manhole frames Single Sealed as standard Non-standard sizes available via 6000 series Manufactured under an ISO 9001:2000 Quality System Finish: Hot dipped galvanised to BS EN ISO 1461 as standard