Manhole rings and cover slabs are manufactured to BS 5911-3 and BS EN 1917. The rings are available in diameters 900, 1050, 1200, 1350 and 1500mm. All rings are available in depths of 300, 600, 900, and 1200mm.
The 1200mm deep rings allow for fewer joints with savings in time, money and manpower.
Manhole rings can be fitted with double or single steps as required.
Joint sealant and other accessories are available.
Manhole rings and cover slabs are kite-marked.
Trapped and untrapped gullies are also available in standard sizes.
If you would like any further information download our pdf or contact a member of our building sales team on 028 2565 2566, Option 2.