Cut Sheet

Conduit Dimensional Data
UL Recommended Dimensions and Weights of Rigid Metal Conduit
MIN. WT. AT 100' LENGTHS
WITH ONE COUPLING
TRADE SIZE (IN.) THDS. PER IN. I.D. (IN.) O.D. (IN.) WALL THICKNESS (IN.) ATTACHED (LBS.)
1
⁄4 18 0.364 .540 .088 38.5
3
⁄8 18 0.493 .675 .091 51.5
1
⁄2 14 0.622 .840 .109 79.0
3
⁄4 14 0.824 1.050 .113 105.0
111
1
⁄2 1.049 1.315 .133 153.0
1
1
⁄4 11
1
⁄2 1.380 1.660 .140 201.0
1
1
⁄2 11
1
⁄2 1.610 1.900 .145 249.0
211
1
⁄2 2.067 2.375 .154 332.0
2
1
⁄2 8 2.469 2.875 .203 527.0
3 8 3.068 3.500 .216 682.6
3
1
⁄2 8 3.548 4.000 .226 831.0
4 8 4.026 4.500 .237 972.3
4
1
⁄2 8 4.506 5.000 .247 1,150.0
5 8 5.047 5.563 .258 1,313.6
6 8 6.065 6.625 .280 1,745.3
UL Dimensions for Intermediate Metallic
Conduit
†
— Type I (10 ft. lengths)
O.D. (IN.)
TRADE SIZE (IN.) MIN. MAX. WALL THICKNESS (IN.)
1
⁄2 .810 .820 .070*
3
⁄4 1.024 1.034 .075*
1 1.285 1.295 .085*
1
1
⁄4 1.630 1.645 .085*
1
1
⁄2 1.875 1.890 .090*
2 2.352 2.367 .095*
2
1
⁄2 2.847 2.867 .130**
3 3.466 3.486 .130**
3
1
⁄2 3.961 3.981 .130**
4 4.456 4.476 .130**
* (+.015. -.000)
** (+.020. -.000)
† IMC Threads are the same as Rigid Metal Conduit Threads.
UL Dimensions for Intermediate Metallic
Conduit — Type II (10 ft. lengths)
O.D. (IN.)
TRADE SIZE (IN.) MIN. MAX. WALL THICKNESS (IN.)
1
⁄2 .825 .840 .085*
3
⁄4 1.035 1.050 .085*
1 1.300 1.315 .108*
1
1
⁄4 1.645 1.660 .108*
1
1
⁄2 1.885 1.900 .108*
2 2.360 2.375 .108*
2
1
⁄2 2.850 2.875 .155**
3 3.475 3.500 .155**
3
1
⁄2 3.975 4.000 .160**
4 4.475 4.500 .160**
* (+.020. -.000)
** ( +.025. -.000)
UL Recommended Dimensions and Weight of Electrical Metallic Tubing (EMT)
MIN. ACCEPT
TRADE SIZE (IN.) O.D. (IN.) I.D.* (IN.) WALL THICKNESS (IN.) WT. FT. (LBS.)
3
⁄8 .577 ± .005 .493 .042 .230
1
⁄2 .706 ± .005 .622 .042 .285
3
⁄4 .922 ± .005 .824 .049 .435
1 1.163 ± .005 1.049 .057 .640
1
1
⁄4 1.510 ± .005 1.380 .065 .950
1
1
⁄2 1.740 ± .005 1.610 .065 1.100
2 2.197 ± .005 2.067 .065 1.400
2
1
⁄2 2.875 ± .010 2.731 .072 2.050
3 3.500 ± .015 3.356 .072 2.500
3
1
⁄2 4.000 ± .020 3.834 .083 3.250
4 4.500 ± .020 4.334 .083 3.700
* Not a requirement — included for information only.
A-167
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