Donut Risers (24-in ID)

Donut Risers are thick wall risers for traffic rated areas.  Precast concrete structures under pavement are designed short of final grade to enable field adjustments. Donut Risers are installed underneath the cast iron frames in place of brick.

They are available in the following heights:

  • 3" Donut (#257203)
  • 4" Donut (#257204)
  • 6" Donut (#257206)
  • 8" Donut (#257208
  • 10" Donut (#257210)
  • 12" Donut (#257212)

30" (ID, Interior diameter) Donut Risers are available, if specified.

Specs
  • Category: Supplies
  • Use: Commercial, Municipal, Sanitary, Stormwater
  • Class: H-20
  • Type: Concrete
  • Interior Dimensions: 24" Diameter
  • Exterior Dimensions: 40" Diameter
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Donut Risers (24-in ID)
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Donut Risers are thick wall risers for traffic rated areas.  Precast concrete structures under pavement are designed short of final grade to enable field adjustments. Donut Risers are installed underneath the cast iron frames in place of brick.

They are available in the following heights:

  • 3" Donut (#257203)
  • 4" Donut (#257204)
  • 6" Donut (#257206)
  • 8" Donut (#257208
  • 10" Donut (#257210)
  • 12" Donut (#257212)

30" (ID, Interior diameter) Donut Risers are available, if specified.

Data sheet

Interior Dimensions
24" Diameter
Exterior Dimensions
40" Diameter

Specific References

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Donut Risers (24-in ID)

Donut Risers (24-in ID)

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