Product Overview
Nominal Minimum Weight Weight of Conduit
Nominal Outside Inside Per 100 Ft. (30.5m) with and Conductors
Conduit Size Diameter Diameter Couplings Attached Per 100 Ft. (30.5m)*
In. mm In. mm In. mm Lbs. kg Lbs. kg
1
/
2
”
(15)
0.840
(21.3)
0.632
(16.1)
27.4
(12.4)
49.5
(22.5)
3
/
4
”
(20)
1.050
(26.7)
0.836
(21.2)
36.4
(16.5)
77.2
(35.0)
1”
(25)
1.315
(33.4)
1.063
(27.0)
53.0
(24.0)
119.3
(54.1)
1
1
/
4
”
(32)
1.660
(42.2)
1.394
(35.4)
69.6
(31.6)
186.9
(84.8)
1
1
/
2
”
(40)
1.900
(48.3)
1.624
(41.2)
82.2
(37.3)
242.0
(109.8)
2”
(50)
2.375
(60.3)
2.083
(52.9)
115.7
(52.5)
377.5
(171.2)
2
1
/
2
”
(65)
2.875
(73.0)
2.489
(63.2)
182.5
(82.8)
556.5
(252.4)
3”
(80)
3.500
(88.9)
3.090
(78.5)
238.9
(108.4)
815.2
(369.8)
3
1
/
2
”
(90)
4.000
(101.6)
3.570
(90.7)
287.7
(130.5)
1061.0
(481.3)
4”
(100)
4.500
(1
14.3)
4.050
(102.9)
340.0
(154.2)
1334.0
(605.1)
5”
(125)
5.563
(141.3)
5.073
(128.9)
465.4
(21
1.1)
2028.0
(919.9)
6”
(150)
6.625
(168.3)
6.093
(154.8)
612.5
(277.8)
2870.0
(1301.8)
Weight of Conduit
Nominal Outside Inside Weight and Conductors
Conduit Size Diameter Diameter Per 100 Ft. (30.5m) Per 100 Ft. (30.5m)*
In. mm In. mm In. mm Lbs. kg Lbs. kg
3
/
8
”
(10)
0.577
(14.7)
0.493
(12.5)
23.0
(10.4)
36.6
(16.6)
1
/
2
”
(15)
0.706
(17.9)
0.622
(15.8)
28.5
(12.9)
50.6
(23.0)
3
/
4
”
(20)
0.922
(23.4)
0.824
(20.9)
43.5
(19.7)
84.3
(38.2)
1”
(25)
1.163
(29.5)
1.049
(26.6)
64.0
(29.0)
130.3
(59.1)
1
1
/
4
”
(32)
1.510
(38.3)
1.380
(35.1)
95.0
(43.1)
212.3
(96.3)
1
1
/
2
”
(40)
1.740
(44.2)
1.610
(40.9)
110.0
(49.9)
269.8
(122.4)
2”
(50)
2.197
(55.8)
2.067
(52.5)
140.0
(63.5)
401.8
(182.3)
2
1
/
2
”
(65)
2.875
(73.0)
2.731
(69.4)
205.0
(93.0)
579.0
(262.6)
3”
(80)
3.500
(88.9)
3.356
(85.2)
250.0
(113.4)
826.3
(374.8)
3
1
/
2
”
(90)
4.000
(101.6)
3.834
(97.4)
325.0
(147.4)
1098.0
(498.0)
4”
(100)
4.500
(114.3)
4.334
(110.1)
370.0
(167.8)
1364.0
(618.7)
ELECTRICAL METALLIC TUBING (EMT) — THINWALL CONDUIT
RIGID ALUMINUM CONDUIT
Dimensions taken from
ANSI C80.5-1977.
*Conduit plus weight of heaviest conductor combination as specified by the National Electrical Code.
Aluminum Rigid Conduit shall be supported at least every 10 feet (3.05 m) and within 3 feet (914 mm) of each outlet box,
junction box, cabinet, or fitting, except for straight runs of conduit connected with couplings which may be supported in
accordance with NEC Table 344.30 (B)(2), provided such supports prevent transmission of stresses to termination where
conduit is deflected between supports.
Dimensions taken from ANSI C80.3-1977.
*Conduit plus weight of heaviest conductor combination as specified by the National Electrical Code.
Electrical Metallic tubing shall be supported at least every 10 feet (3.05 m) and within 3 feet (914 mm) of each outlet box,
junction box,cabinet, or fitting. See NEC Article 348.
NEC TABLE 344.30 (B)(2)
Conduit Size Maximum Support Span
In.
mm
Feet
Meters
1
/
2
-
3
/
4
(15-20)
10
(3.05)
1
(25)
12
(3.66)
1
1
/
4
-1
1
/
2
(32-40)
14
(4.27)
2-2
1
/
2
(50-65)
16
(4.88)
3-6
(80-150)
20
(6.10)
Reference Data
Reference Data
234