Designed to sit above an existing manhole structure, this riser provides a simple way to increase height while maintaining a clear and consistent access opening.

Main Benefits:

• Height Adjustment: Adds 70mm of extra height where the manhole needs to be brought up to the required finished level.
• Rectangular Opening: The 635 x 435mm opening maintains practical access to the manhole below.
• Solid Precast Construction: Provides a durable and stable solution for permanent infrastructure installations.
• Simple Integration: Designed to work as part of a manhole system where additional height is needed.
• Clean Finished Result: Helps create a neat transition between the manhole structure and surrounding surface.

Suitable for civil, commercial and infrastructure projects, the Rectangle Manhole Riser provides a straightforward way to achieve the required manhole height without replacing the main chamber.