Question: What are the metric designators for steel conduit/EMT?
Answer: The trade sizes and metric designator equivalents for RMC, IMC, and EMT are:
Trade Size | Metric Designator |
1/2 | 16 |
3/4 | 21 |
1 | 27 |
1 1/4 | 35 |
1 1/2 | 41 |
2 | 53 |
2 1/2 | 63 |
3 | 78 |
3 1/2 | 91 |
4 | 103 |
5 | 129 |
6 | 155 |
Note: The trade sizes and metric designators are for identification purposes only and are not actual dimensions. Product dimensions do not change.