Avoid unnecessary project costs by eliminating extra labor, equipment and materials. With our steel or cast iron riser rings, any manhole or catch basin can be adjusted to grade on your resurfacing projects.
Our risers are manufactured and assembled in the USA from domestic A-36 steel or ASTM a48/Class 35B gray iron. Steel is renowned for its high tensile strength, making it resistant to deformation, bending, and breaking. Similarly, cast iron is known for its exceptional compressive strength, making it ideal for handling heavy loads and withstanding the stresses of construction sites. Offering high load-carrying capabilities, makes them suitable for supporting substantial weights without failure.
Solid or adjustable styles
- Steel and cast iron risers available to fit all your grade adjustments
- Load tested to ensure dependable strength and long lasting durability
- Large inventory ready for delivery nationwide
- Made to order sizes for custom application
- Slope risers available
There is no need to tear out new paving, brick and mortar to grade, then re-patch the street. In addition, there are no traffic disruptions—when the street is paved the job is done and the manhole cover is finished to grade. Their extended service life, minimal maintenance requirements, and durability justify the higher initial outlay, ultimately saving construction companies time and money.