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Manhole Rings, Bases and Seating Slabs

Moore Concrete manufacture a large variety of precast concrete Manhole Rings, Cover Slabs, Risers (also known as Seating Slabs), Lids and Accessories for the use by diverse industries including contractors, landscape designers and farmers.

Our manhole rings are manufactured with a tongue and groove joint making it easy for numerous rings to be jointed together.

We carry a large amount of stock across the range, with all rings manufactured British Standard Approved — BS EN 1917 & 5911-3.


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Manhole Rings

Manhole Rings Sizing Chart - Moore Concrete

Cover Slabs

Cover Slab Sizing Chart - Moore Concrete

Precast Concrete Manhole Rings Key Benefits

  • High strength and durability
  • Tongue and groove design make it easy to fit together.
  • Joints can be sealed to ensure structure is water tight.
  • British Standard Approved — BS EN 1917 & 5911-3
  • Products immediately ready for installation, reducing site time
  • Moore Concrete can provide a complete range of complimentary products

Manhole Seating Slabs

Manhole Seating Slabs (also known as risers or adjusting units) are used to maneuver the cast iron cover to the required level. They fit between the cover slab and cast iron cover allowing them to be stacked on top of each other, this eliminates the need to lay engineering brick. They are fully compliant with building and NI Water regulations.

Manhole Seating Slab Sizing Chart - Moore Concrete

Accessories include:

  • Standard double step
  • Double yellow ladder step with sidehold
  • Double triangular cover and frame
  • Joint sealant


Moore Concrete are delighted to present QuikBase; a safe and efficient solution to installing a manhole.

For more information on QuikBase please click here 

QuikBase Diagram - Moore ConcreteQuikBase - Moore Concrete

Precast Concrete Manhole Rings Applications

  • Storm Water
  • Sewerage
  • Pipeline junctions
  • Electricity, Telephone and Gas Connections
  • Some customers have even used them as raised flower beds
Manhole Ring - Moore Concrete

Example Project


Download Brochure

Manhole Rings Brochure

Download Brochure

Full Building Brochure

Want More Information?

For further information regarding Manhole Rings, Bases and Seating Slabs please contact a member of our building team on 028 2565 2566 Ext 2. Delivery available throughout the UK & Ireland