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Manhole Adjusting Rings
Posted August 27th, 2008 Last Updated October 10th, 2008
Categories:
- Availability: Custom Fabricated (1 to 10 days), Always in Stock
We keep in stock a selection of ready made adjusting rings to fit our most popular manhole covers. We also provide custom fabrication of manhole adjusting rings in cases where a stock item is not available. Please refer to the lists below for details.
Depiction of a typical adjusting ring installation

NOTES
- Cover diameter is approximately 1/4” smaller than inside diameter of ring
- Measure cover diameter on top side of cover
- Measure thickness at edge of cover
- Measure all covers on your project. Don't assume they are all the same size
| Standard Adjusting Ring Price Sheet(In Stock) | ||||
| Stock Number | Cover Diameter | Cover Thickness | Amount of Lift | Price (subject to change) |
| 1AR170 | 23-3/4” | 1-1/4” | 1” | $145.00 |
| 1AR225 | 25-3/4” | 2” | 1” | $192.00 |
| 1AR420 | 22-3/4” | 2" | 1" | $145.00 |
| 2AR170 | 23-3/4" | 1-1/4" | 2" | $145.50 |
| 2AR225 | 25-3/4" | 2" | 2" | $319.00 |
| Custom Adjusting Ring Price Sheet | ||||||
| We will fabricate your custom adjusting ring according to the dimensions you provide. You are responsible for the accuracy of those measurements. Deposit may be required for custom work. | ||||||
| Cover | Cover | Lift Required (Price subject to change) | ||||
| Diameter | Thickness | 3/4” to 3” | 3+” to 6” | 6+” to 9” | 9+” to 12” | 12” or more |
| 12 up to 18 | ½” up to 3” | $137.50 | $148.50 | $159.50 | $170.50 | Call for price |
| 18+ up to 23 | ½” up to 3” | $192.50 | $214.50 | $236.50 | $258.50 | Call for price |
| 23+ up to 28 | ½” up to 3” | $302.50 | $313.50 | $324.50 | $335.50 | Call for price |
| 28+ up to 33 | ½” up to 3” | $357.50 | $368.50 | $379.50 | $390.50 | Call for price |
| 33+ up to 38 | ½” up to 3” | $412.50 | $423.50 | $434.50 | $445.50 | Call for price |
| 38+ up to 43 | ½” up to 3” | $467.50 | $478.50 | $489.50 | $500.50 | Call for price |
| 43+ up to 48 | ½” up to 3” | $522.50 | $533.50 | $544.50 | $555.50 | Call for price |
| 48+ up to 53 | ½” up to 3” | $577.50 | $588.50 | $599.50 | $610.50 | Call for price |
| 53” or more | Call for price | |||||
To help you in selecting the proper adjusting ring for your application, please download, print and fill out the Adjusting Ring Worksheet in the following link.
| Attachment | Size |
|---|---|
| Adjusting-Ring-Worksheet-1010081.pdf | 219.58 KB |


