ELEMENTS OF SECTION

Square Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
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
2 x 2
 0.2500 1/4
5.41
1.59
0.766
0.766
0.694
 0.1875 3/16
4.32
1.27
0.668
0.668
0.726
 0.1250 1/8
3.05
0.90
0.513
0.513
0.758
2-1/2 x 2-1/2
 0.2500 1/4
7.11
2.09
1.69
1.35
0.899
 0.1875  3/16
5.59
1.64
1.42
1.14
0.930
 0.1250  1/8
3.90
1.15
1.06
0.847
0.961
3 x 3
 0.3125  5/16
10.58
3.11
3.58
2.39
1.07
 0.2500  1/4
8.81
2.59
3.16
2.10
1.10
 0.1875  3/16
6.87
2.02
2.60
1.73
1.13
 0.1250  1/8
4.75
1.40
1.90
1.26
1.16
3-1/2 x 3-1/2
 0.3125  5/16
12.70
3.73
6.09
3.48
1.28
 0.2500  1/4
10.51
3.09
5.29
3.02
1.31
 0.1875  3/16
8.15
2.39
4.29
2.45
1.34
 0.1250  1/8
5.61
1.65
3.09
1.76
1.37
4 x 4
 0.5000  1/2
21.63
6.36
12.3
6.13
1.39
 0.3750  3/8
17.27
5.08
10.7
5.35
1.45
 0.3125  5/16
14.83
4.36
9.58
4.79
1.48
 0.2500  1/4
12.21
3.59
8.22
4.11
1.51
 0.1875  3/16
9.42
2.77
6.59
3.30
1.54
 0.1250  1/8
6.46
1.90
4.70
2.357
1.57
5 x 5
 0.5000  1/2
28.43
8.36
27.0
10.8
1.80
 0.3750  3/8
22.37
6.58
22.8
9.11
1.86
 0.3125  5/16
19.08
5.61
20.1
8.02
1.89
 0.2500  1/4
15.62
4.59
16.9
6.78
1.92
 0.1875  3/16
11.97
3.52
13.4
5.36
1.95
5-1/2 x 5-1/2
 0.3750  3/8
24.93
7.33
31.2
11.4
2.07
 0.3125  5/16
21.21
6.23
27.4
9.95
2.10
 0.2500  1/4
17.32
5.09
23.0
8.36
2.13
 0.1875  3/16
13.25
3.89
18.1
6.58
2.16
6 x 6
 0.5000  1/2
35.24
10.4
50.5
16.8
2.21
 0.3750  3/8
27.48
8.08
41.6
13.9
2.27
 0.3125 5/16
23.34
6.86
36.3
12.1
2.30
 0.2500  1/4
19.02
5.59
30.3
10.1
2.33
 0.1875  3/16
14.53
4.27
23.8
7.93
2.36
7 x 7
 0.5000  1/2
42.05
12.4
84.6
24.2
2.62
 0.3750  3/8
32.58
9.58
68.7
19.6
2.68
 0.3125  5/16
27.59
8.11
59.5
17.0
2.71
 0.2500  1/4
22.42
6.59
49.4
14.1
2.74
 0.1875  3/16
17.08
5.02
38.5
11.0
2.77

*Outside dimensions across flat sides.[divider]

ELEMENTS OF SECTION

Square Tubing

DIMENSIONS
PROPERTIES
Nominal*
Size
Wall
Thickness
Weight
per
Foot
Area
Moment
of Inertia
(1) In.4
Section
Modules
(S) In.3
Radius of
Gyration
(r) In.
Inch
Inch
Lb.
Inch2
Inch4
Inch3
Inch
8 x 8
 0.5000  1/2
48.85
14.4
131.0
32.9
3.03
 0.3750  3/8
37.69
11.1
106.0
26.4
3.09
 0.3125  5/16
31.84
9.36
90.9
22.7
3.12
 0.2500  1/4
25.82
7.59
75.1
18.8
3.15
 0.1875  3/16
19.63
5.77
58.2
14.6
3.18
9 x 9
 0.5000  1/2
55.66
16.4
193.0
42.9
3.43
 0.3750  3/8
42.79
12.6
154.0
34.1
3.49
 0.3125  5/16
36.10
10.6
132.0
29.3
3.53
 0.2500  1/4
29.23
8.59
109.0
24.1
3.56
 0.1875  3/16
22.18
6.52
83.8
18.6
3.59
10 x 10
 0.5000  1/2
62.46
18.4
271.0
54.2
3.84
 0.3750  3/8
47.90
14.1
214.0
42.9
3.90
 0.3125  5/16
40.35
11.9
183.0
36.7
3.93
 0.2500  1/4
32.63
9.59
151.0
30.1
3.96
 0.1875  3/16
24.73
7.27
116.0
23.2
3.99
12 x 12
 0.5000  1/2
76.07
22.4
485.0
80.9
4.66
 0.3750  3/8
58.10
17.1
380.0
63.4
4.72
 0.3125  5/16
48.86
14.4
324.0
54.0
4.75
 0.2500  1/4
39.43
11.6
265.0
44.1
4.78
 0.1875  3/16
29.84
8.77
203.0
33.8
4.81
14 x 14
 0.5000  1/2
89.68
26.4
791.0
113.0
5.48
 0.3750  3/8
68.31
20.1
615.0
87.9
5.54
 0.3125  5/16
57.36
16.9
522.0
74.6
5.57
16 x 16
 0.5000  1/2
103.30
30.4
1200.0
150.0
6.29
 0.3750  3/8
78.52
23.1
931.0
116.0
6.35
 0.3125  5/16
65.87
19.4
789.0
98.6
6.38

*Outside dimensions across flat sides.