ELEMENTS OF SECTION

Rectangular Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
X – X AXIS
Y – Y AXIS
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
Inch4
Inch3
Inch
3 x 2
 0.2500  1/4
7.11
2.09
2.21
1.47
1.03
1.15
1.15
0.742
 0.1875  3/16
5.59
1.64
1.86
1.24
1.06
0.977
0.977
0.771
4 x 2
 0.3125  5/16
10.58
3.11
5.32
2.66
1.31
1.71
1.71
0.743
 0.2500  1/4
8.81
2.59
4.69
2.35
1.35
1.54
1.54
0.770
 0.1875  3/16
6.87
2.02
3.87
1.93
1.38
1.29
1.29
0.798
4 x 3
 0.3125  5/16
12.70
3.73
7.45
3.72
1.41
4.71
3.14
1.12
 0.2500  1/4
10.51
3.09
6.45
3.23
1.45
4.10
2.74
1.15
 0.1875  3/16
8.15
2.39
5.23
2.62
1.48
3.34
2.23
1.18
5 x 2
 0.3125  5/16
12.70
3.73
9.74
3.90
1.62
2.16
2.16
0.762
 0.2500  1/4
10.51
3.09
8.48
3.39
1.66
1.92
1.92
0.789
 0.1875  3/16
8.15
2.39
6.89
2.75
1.70
1.60
1.60
0.816
5 x 3
 0.3750  3/8
17.27
5.08
14.7
5.89
1.70
6.48
4.32
1.13
 0.3125  5/16
14.83
4.36
13.2
5.27
1.74
5.85
3.90
1.16
 0.2500  1/4
12.21
3.59
11.3
4.52
1.77
5.05
3.37
1.19
 0.1875  3/16
9.42
2.77
9.06
3.62
1.81
4.08
2.72
1.21
5 x 4
 0.3750  3/8
19.82
5.83
18.7
7.50
1.79
13.2
6.58
1.50
 0.3125  5/16
16.96
4.98
16.6
6.65
1.83
11.7
5.85
1.53
 0.2500  1/4
13.91
4.09
14.1
5.65
1.86
9.98
4.99
1.56
 0.1875  3/16
10.70
3.14
11.2
4.49
1.89
7.96
3.98
1.59
6 x 2
 0.3750  3/8
17.27
5.08
17.8
5.94
1.87
2.84
2.84
0.748
 0.3125  5/16
14.83
4.36
16.0
5.34
1.92
2.62
2.62
0.775
 0.2500  1/4
12.21
3.59
13.8
4.60
1.96
2.31
2.31
0.802
 0.1875  3/16
9.42
2.77
11.1
3.70
2.00
1.90
1.90
0.829
6 x 3
 0.3750  3/8
19.82
5.83
23.8
7.92
2.02
7.78
5.19
1.16
 0.3125  5/16
16.96
4.98
21.1
7.03
2.06
6.98
4.65
1.18
 0.2500  1/4
13.91
4.09
17.9
5.98
2.09
6.00
4.00
1.21
 0.1875  3/16
10.70
3.14
14.3
4.76
2.13
4.83
3.22
1.24

*Outside dimensions across flat sides.

ELEMENTS OF SECTION

Rectangular Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
X – X AXIS
Y – Y AXIS
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
Inch4
Inch3
Inch
6 x 4
 0.5000  1/2
28.43
8.36
35.3
11.8
2.06
18.4
9.21
1.48
 0.3750  3/8
22.37
6.58
29.7
9.90
2.13
15.6
7.82
1.54
 0.3125  5/16
19.08
5.61
26.2
8.72
2.16
13.8
6.92
1.57
 0.2500  1/4
15.62
4.59
22.1
7.36
2.19
11.7
5.87
1.60
 0.1875  3/16
11.97
3.52
17.4
5.81
2.23
9.32
4.66
1.63
6 x 5
 0.3750  3/8
24.93
7.33
35.6
11.9
2.21
26.8
10.7
1.91
 0.3125  5/16
21.21
6.23
31.2
10.4
2.24
23.5
9.40
1.94
 0.2500  1/4
17.32
5.09
26.2
8.74
2.27
19.8
7.91
1.97
 0.1875  3/16
13.25
3.89
20.6
6.87
2.30
15.6
6.23
2.00
7 x 3
 0.3750  3/8
22.37
6.58
35.7
10.2
2.33
9.08
6.05
1.18
 0.3125  5/16
19.08
5.61
31.5
9.00
2.37
8.11
5.41
1.20
 0.2500  1/4
15.62
4.59
26.6
7.61
2.41
6.95
4.63
1.23
 0.1875  3/16
11.97
3.52
21.1
6.02
2.45
5.57
3.71
1.26
7 x 4
 0.3750  3/8
24.93
7.33
44.0
12.6
2.45
18.1
9.06
1.57
 0.3125  5/16
21.21
6.23
38.5
11.0
2.49
16.0
7.98
1.60
 0.2500  1/4
17.32
5.09
32.3
9.23
2.52
13.5
6.75
1.63
 0.1875  3/16
13.25
3.89
25.4
7.26
2.55
10.7
5.34
1.66
7 x 5
 0.5000  1/2
35.24
10.4
63.5
18.1
2.48
37.2
14.9
1.90
 0.3750  3/8
27.48
8.08
52.2
14.9
2.54
30.8
12.3
1.95
 0.3125  5/16
23.34
6.86
45.5
13.0
2.58
26.9
10.8
1.98
 0.2500  1/4
19.02
5.59
38.0
10.9
2.61
22.6
9.04
2.01
 0.1875  3/16
14.53
4.27
29.8
8.5
2.64
17.7
7.10
2.04
8 x 2
 0.3750  3/8
22.37
6.58
40.1
10.0
2.47
3.85
3.85
0.765
 0.3125  5/16
19.08
5.61
35.5
8.87
2.51
3.52
3.52
0.792
 0.2500  1/4
15.62
4.59
30.1
7.52
2.56
3.08
3.08
0.819
 0.1875  3/16
11.97
3.52
23.9
5.97
2.60
2.52
2.52
0.847

*Outside dimensions across flat sides.

ELEMENTS OF SECTION

Rectangular Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
X – X AXIS
Y – Y AXIS
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
Inch4
Inch3
Inch
8 x 3
 0.3750  3/8
24.93
7.33
51.0
12.7
2.64
10.4
6.92
1.19
 0.3125  5/16
21.21
6.23
44.7
11.2
2.68
9.25
6.16
1.22
 0.2500  1/4
17.32
5.09
37.6
9.40
2.72
7.90
5.26
1.25
 0.1875  3/16
13.25
3.89
29.6
7.40
2.76
6.31
4.21
1.27
8 x 4
 0.5000  1/2
35.24
10.4
75.1
18.8
2.69
24.6
12.3
1.54
 0.3750  3/8
27.48
8.08
61.9
15.5
2.77
20.6
10.3
1.60
 0.3125  5/16
23.34
6.86
53.9
13.5
2.80
18.1
9.05
1.62
 0.2500  1/4
19.02
5.59
45.1
11.3
2.84
15.3
7.63
1.65
 0.1875  3/16
14.53
4.27
35.3
8.83
2.88
12.0
6.02
1.68
8 x 6
 0.5000  1/2
42.05
12.4
103.0
25.8
2.89
65.7
21.9
2.31
 0.3750  3/8
32.58
9.58
83.7
20.9
2.96
53.5
17.8
2.36
 0.3125  5/16
27.59
8.11
72.4
18.1
2.99
46.4
15.5
2.39
 0.2500  1/4
22.42
6.59
60.1
15.0
3.02
38.6
12.9
2.42
 0.1875  3/16
17.08
5.02
46.8
11.7
3.05
30.1
10.0
2.45
9 x 3
 0.3750  3/8
27.48
8.08
69.9
15.5
2.94
11.7
7.79
1.20
 0.3125  5/16
23.34
6.86
61.0
13.6
2.98
10.4
6.92
1.23
 0.2500  1/4
19.02
5.59
51.1
11.4
3.02
8.84
5.90
1.26
 0.1875  3/16
14.53
4.27
40.1
8.91
3.06
7.06
4.70
1.29
9 x 5
 0.5000  1/2
42.05
12.4
121.0
26.8
3.12
47.4
18.9
1.96
 0.3750  3/8
32.58
9.58
97.8
21.7
3.20
38.8
15.5
2.01
 0.3125 5/16
27.59
8.11
84.6
18.8
3.23
33.8
13.5
2.04
 0.2500  1/4
22.42
6.59
70.3
15.6
3.27
28.2
11.3
2.07
 0.1875  3/16
17.08
5.02
54.7
12.1
3.30
22.1
8.84
2.10
9 x 7
 0.5000  1/2
48.85
14.4
157.0
34.8
3.30
106.0
30.2
2.71
 0.3750  3/8
37.69
11.1
126.0
27.9
3.37
85.1
24.3
2.77
 0.3125  5/16
31.84
9.36
108.0
24.0
3.40
73.5
21.0
2.80
 0.2500  1/4
25.82
7.59
89.4
19.9
3.43
60.8
17.4
2.83
 0.1875  3/16
19.63
5.77
69.2
15.4
3.46
47.2
13.5
2.86

*Outside dimensions across flat sides.

ELEMENTS OF SECTION

Rectangular Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
X – X AXIS
Y – Y AXIS
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
Inch4
Inch3
Inch
10 x 2
 0.3750  3/8
27.48
8.08
75.4
15.1
3.06
4.85
4.85
0.775
 0.3125  5/16
23.34
6.86
66.1
13.2
3.10
4.42
4.42
0.802
 0.2500  1/4
19.02
5.59
55.5
11.1
3.15
3.85
3.85
0.830
 0.1875  3/16
14.53
4.27
43.7
8.74
3.20
3.14
3.14
0.858
10 x 4
 0.5000  1/2
42.05
12.4
136.0
27.1
3.31
30.8
15.4
1.58
 0.3750  3/8
32.58
9.58
110.0
22.0
3.39
25.5
12.8
1.63
 0.3125  5/16
27.59
8.11
95.5
19.1
3.43
22.4
11.2
1.66
 0.2500  1/4
22.42
6.59
79.3
15.9
3.47
18.8
9.39
1.69
 0.1875  3/16
17.08
5.02
61.7
12.3
3.51
14.8
7.39
1.72
10 x 6
 0.5000  1/2
48.85
14.4
181.0
36.2
3.55
80.8
26.9
2.37
 0.3750  3/8
37.69
11.1
145.0
29.0
3.62
65.4
21.8
2.43
 0.3125  5/16
31.84
9.36
125.0
25.0
3.65
56.5
18.8
2.46
 0.2500  1/4
25.82
7.59
103.0
20.6
3.69
46.9
15.6
2.49
 0.1875  3/16
19.63
5.77
79.8
16.0
3.72
36.5
12.2
2.51
10 x 8
 0.5000  1/2
55.66
16.4
226.0
45.2
3.72
160.0
39.9
3.12
 0.3750  3/8
42.79
12.6
180.0
35.9
3.78
127.0
31.8
3.18
 0.3125  5/16
36.10
10.6
154.0
30.8
3.81
109.0
27.3
3.21
 0.2500  1/4
29.23
8.59
127.0
25.4
3.84
90.2
22.5
3.24
 0.1875  3/16
22.18
6.52
97.9
19.6
3.87
69.7
17.4
3.27
12 x 4
 0.5000  1/2
48.85
14.4
221.0
36.8
3.92
36.9
18.5
1.60
 0.3750  3/8
37.69
11.1
178.0
29.6
4.01
30.5
15.2
1.66
 0.3125  5/16
31.84
9.36
153.0
25.5
4.05
26.6
13.3
1.69
 0.2500  1/4
25.82
7.59
127.0
21.1
4.09
22.3
11.1
1.71
 0.1875  3/16
19.63
5.77
98.2
16.4
4.13
17.5
8.75
1.74

*Outside dimensions across flat sides.

ELEMENTS OF SECTION

Rectangular Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
X – X AXIS
Y – Y AXIS
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
Inch4
Inch3
Inch
12 x 6
 0.5000  1/2
55.66
16.4
287.0
47.8
4.19
96.0
32.0
2.42
 0.3750  3/8
42.79
12.6
228.0
38.1
4.26
77.2
25.7
2.48
 0.3125  5/16
36.10
10.6
196.0
32.6
4.30
66.6
22.2
2.51
 0.2500  1/4
29.23
8.59
161.0
26.9
4.33
55.2
18.4
2.53
 0.1875  3/16
22.18
6.52
124.0
20.7
4.37
42.8
14.3
2.56
12 x 8
 0.5000  1/2
62.46
18.4
353.0
58.9
4.39
188.0
46.9
3.20
 0.3750  3/8
47.90
14.1
279.0
46.5
4.45
149.0
37.3
3.26
 0.3125  5/16
40.35
11.9
239.0
39.8
4.49
128.0
32.0
3.28
 0.2500  1/4
32.63
9.59
196.0
32.6
4.52
105.0
26.3
3.31
 0.1875  3/16
24.73
7.27
151.0
25.1
4.55
81.1
20.3
3.34
14 x 4
 0.5000  1/2
55.66
16.4
335.0
47.8
4.52
43.1
21.5
1.62
 0.3750  3/8
42.79
12.6
267.0
38.2
4.61
35.4
17.7
1.68
 0.3125  5/16
36.10
10.6
230.0
32.8
4.65
30.9
15.4
1.71
 0.2500  1/4
29.23
8.59
189.0
27.0
4.69
25.8
12.9
1.73
14 x 6
 0.5000  1/2
62.46
18.4
426.0
60.8
4.82
111.0
37.1
2.46
 0.3750  3/8
47.90
14.1
337.0
48.1
4.89
89.1
29.7
2.52
 0.3125  5/16
40.35
11.9
288.0
41.2
4.93
76.7
25.6
2.54
 0.2500  1/4
32.63
9.59
237.0
33.8
4.97
63.4
21.1
2.57
14 x 10
 0.5000  1/2
76.07
22.4
608.0
86.9
5.22
361.0
72.3
4.02
 0.3750  3/8
58.10
17.1
476.0
68.0
5.28
284.0
56.8
4.08
 0.3125  5/16
48.86
14.4
405.0
57.9
5.31
242.0
48.4
4.11
16 x 4
 0.5000  1/2
62.46
18.4
481.0
60.2
5.12
49.3
24.6
1.64
 0.3750  3/8
47.90
14.1
382.0
47.8
5.21
40.4
20.2
1.69
 0.3125  5/16
40.35
11.9
327.0
40.9
5.25
35.1
17.6
1.72

*Outside dimensions across flat sides.

ELEMENTS OF SECTION

Rectangular Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
X – X AXIS
Y – Y AXIS
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Moment of
Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch 2
Inch 4
Inch 3
Inch
Inch 4
Inch 3
Inch
16 x 8
 0.5000  1/2
76.07
22.4
722.0
90.2
5.68
244.0
61.0
3.30
 0.3750  3/8
58.10
17.1
565.0
70.6
5.75
193.0
48.2
3.36
 0.3125  5/16
48.86
14.4
481.0
60.1
5.79
165.0
41.2
3.39
16 x 12
 0.5000  1/2
89.68
26.4
962.0
120.0
6.04
618.0
103.0
4.84
 0.3750  3/8
68.31
20.1
748.0
93.5
6.11
482.0
80.3
4.90
 0.3125  5/16
57.38
16.9
635.0
79.4
6.14
409.0
68.2
4.93
18 x 6
 0.5000  1/2
76.07
22.4
818.0
90.9
6.05
141.0
47.2
2.52
 0.3750  3/8
58.10
17.1
641.0
71.3
6.13
113.0
37.6
2.57
 0.3125  5/16
48.86
14.4
546.0
60.7
6.17
97.0
32.3
2.60
20 x 4
 0.5000  1/2
76.07
22.4
889.0
88.9
6.31
61.6
30.8
1.65
 0.3750  3/8
58.10
17.1
699.0
69.9
6.40
50.3
25.1
1.72
 0.3125  5/16
48.86
14.4
596.0
59.6
6.44
43.7
21.8
1.74
20 x 8
 0.5000  1/2
89.68
26.4
1270.0
127.0
6.94
300.0
75.1
3.38
 0.3750  3/8
68.31
20.1
988.0
98.8
7.02
236.0
59.1
3.43
 0.3125  5/16
57.36
16.9
838.0
83.8
7.05
202.0
50.4
3.46
20 x 12
 0.5000  1/2
103.30
30.4
1650.0
165.0
7.37
750.0
125.0
4.97
 0.3750  3/8
78.52
23.1
1280.0
128.0
7.44
583.0
97.2
5.03
 0.3125  5/16
65.87
19.4
1080.0
108.0
7.47
495.0
82.5
5.06

*Outside dimensions across flat sides.