Manhole Cover Slabs

Manhole Rings

We manufacture type 2 heavy duty cover slabs suitable for manhole units. These slabs come in the following dimensions, however non standard slabs can be designed and supplied to order. Cover slabs with special access holes can be supplied, but are made to order. Further information on our four metre diameter cover slabs which are kept in stock can be found here.

Diameter
Approx. depth. A.
Approx. overall diameter. B.
Standard access sizes
Approx. weight 675sq. Access
DN
mm
mm
600x600
675x675
 750x600
750x750
1200x675
kg per m
675 140 960 C C X X X 130
900 150 1160 E C X X X 160
1050 150 1240 E C C X X 280
1200 150 1400 E C C E X 400
1350 150 1570 E E T/O E C 540
1500 180 1770 E E T/O E C 900
1800 180 2100 E E T/O E C 1340
2100 190 2500 E E T/O E C 2180
2400 190 2760 E E T/O E C 2600
2700 240 2980 E E T/O E C 4000
3000 275 3300 E E T/O E C 4700
3500 275 3850 T/O T/O T/O T/O T/O 7400
4000 275 4500 T/O T/O T/O T/O T/O 10500
 
C Denotes central position E Denote eccentric position T/O Made to order
 

Notes

  • 600x600 is a non standard access and not covered by the British Standard
  • All slabs detailed are Type 2
  • Weights available on request as they are dependant on the access size
  • Non standard slabs and accesses can be designed and supplied to order
  • DN4000 cover slabs are supplied in 2 sections
  • All accesses have 75x75 corner chamfers
  • All cover slabs are 'heavy duty' and are suitable for use in main roads