Base Duct Spacers | Underground Conduit Alignment
Base Duct Spacers | Underground Conduit Alignment
Base Duct Spacers are designed to support and accurately position conduit arrays within trenching before encasement. Their two-piece interlocking design allows spacers to connect vertically and horizontally for fast, secure field assembly.
Cal Am Duct Spacers are available in multiple conduit and spacing sizes for underground electrical and broadband applications. Their lightweight, high-impact polymer construction provides durability while making the spacers easy to handle and install.
Key Features
- Vertical & Horizontal Interlocking – Male and female connections allow fast, secure assembly of duct spacer arrays in the field.
- High-Impact Polymer Construction – Durable construction is designed to support heavy loads during duct placement and installation.
- Encased & Direct Burial Applications – Designed for use in both encased burial and direct burial installations.
- Multiple Conduit & Spacing Sizes – Base spacers are available for conduit sizes from 2.00" through 8.00" with multiple spacing configurations.
- Lightweight Design – Easy to handle and transport during installation.
- Recycled & Recyclable Material – Manufactured using recycled materials and designed to be recyclable.
Also Referred To As
- Conduit Chairs
- Conduit Spacers
- Utility Duct Spacers
- Utility Conduit Spacers
- Duct Bank Spacers
- Base Spacers
- Intermediate Spacers
- Trench Spacers
Ordering Information
| Product Number | Data Sheet | Size (in) | Size (mm) | Case Qty | Color |
|---|---|---|---|---|---|
| 4020-15 | 2.00 × 1.50 | 50.80 × 38.10 | 450 | Black | |
| 4020-20 | 2.00 × 2.00 | 50.80 × 50.80 | 325 | Black | |
| 4020-30 | 2.00 × 3.00 | 50.80 × 76.20 | 300 | Black | |
| 4030-15 | 3.00 × 1.50 | 76.20 × 38.10 | 250 | Black | |
| 4030-20 | 3.00 × 2.00 | 76.20 × 50.80 | 225 | Black | |
| 4030-30 | 3.00 × 3.00 | 76.20 × 76.20 | 190 | Black | |
| 4040-10 | 4.00 × 1.00 | 101.60 × 25.40 | 250 | Black | |
| 4040-15 | 4.00 × 1.50 | 101.60 × 38.10 | 180 | Black | |
| 4040-20 | 4.00 × 2.00 | 101.60 × 50.80 | 180 | Black | |
| 4040-30 | 4.00 × 3.00 | 101.60 × 76.20 | 150 | Black | |
| 4050-15 | 5.00 × 1.50 | 127.00 × 38.10 | 140 | Black | |
| 4050-20 | 5.00 × 2.00 | 127.00 × 50.80 | 100 | Black | |
| 4050-30 | 5.00 × 3.00 | 127.00 × 76.20 | 90 | Black | |
| 4060-15 | 6.00 × 1.50 | 152.40 × 38.10 | 100 | Black | |
| 4060-20 | 6.00 × 2.00 | 152.40 × 50.80 | 100 | Black | |
| 4060-30 | 6.00 × 3.00 | 152.40 × 76.20 | 90 | Black | |
| 4080-20 | 8.00 × 2.00 | 203.20 × 50.80 | 65 | Black | |
| 4080-30 | 8.00 × 3.00 | 203.20 × 76.20 | 60 | Black |
Select the Base Duct Spacer according to the conduit size and required spacing. All listed variants are sold by the case.
Installation Note
Base spacers should be installed level, plumb, and true. Intermediate or additional base spacers connect by pressing or sliding the male joints into the female joints. For direct burial applications, project design and installation performance remain the responsibility of the project engineer and contractor.