Manholes and Cover Slabs

Our extensive range of manholes are suitable for all standard applications. We are also able to cast custom manholes and cover slabs according to client specifications.

Ring Sizes
Inner Diameter Ring Height Wall Thickness Approx. Mass
750 mm 250 mm 55 mm 85kg
750 mm 500 mm 55 mm 170kg
1000 mm 250 mm 65 mm 140kg
1000 mm 500 mm 65 mm 280kg
1250 mm 250 mm 75 mm 225kg
1250 mm 500 mm 75 mm 450kg

 

Schematics

Reinforced Manhole Rings to SABS Specification SANS 1294.

Dimensions

Chamber Sections

Nominal Diameter Outside Diameter Inside Diameter Wall Thickness Mass Kg
(mm) (mm) (mm) (mm)
750 860 750 55 189/500mm
1000 1130 1000 65 590/m
1250 1400 1250 75 876/m
1500 1670 1500 85 1100/m

Effective Lengths

750 DIA - 250, 500mm - 1000, 1250 & 1500 DIA - 250, 500, 1000mm
Reducer Slabs Outside Diameter Reduce to Thickness Mass Kg
600 611 699 44 19
675 685 787 51 20
750 762 870 54 20
Cover Slabs Outside Diameter Reduce to Thickness Mass Kg
825 830 946 58 22
900 913 1041 64 25
1050 1060 1180 60 25
1200 1190 1340 75 28
6 Way Base Outside Diameter Inside Diameter Height Mass Kg
6x 160 knockouts 1130mm 1000mm 480mm 701

Spacer

800mm 560mm 75mm 045

Frame

800mm Tapered to 770mm 560mm 130mm 065

Concrete Lids

560mm Dia Medium Duty 085
560mm Dia Medium Duty 082