Introduction
Structural Steel is available in a variety of standard sizes. You'll find the dimensions for those sizes in our handy tables below, grouped by structural shape. In addition, there is helpful information on the applicable standards and other basics.
Structural Steel is generally referred to by its profile (for example "I-Beams") and its size. Sizes are determined by standards which are described in the sections for each shape below.
One goal of Structural Steel that goes to determining the shape is that it have high second moments of area, which make them very stiff in respect to their cross-sectional area. This makes them strong relative to the amount of material and weight that must be used in their construction.
Common Structural Steel Shapes By William Perry of Mercury Business Development - https://commons.wikimedia.org/w/index.php?curid=5326461...
If you want to learn more about the properties of the different types of steel used in Structural Steel, check out our handy article on types of metals.
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Steel I-Beam Sizes (Steel Beam Dimensions and Weights)
I-Beams are also known as H-Beams, W-Beams (for "wide flange"), Universal Beams (UB), Rolled Steel Joists (RSJ) or Double-T. I-Beams have an I, or if you rotate it, an H-shaped cross-section. The horizontal elements of the "I" are called "flanges", while the vertical elements are the "web." I-Beams are one of several standard structural shapes for steel, and they are commonly used in construction and civil engineering projects.
The shape of the I-Beam provides versatile strength with a minimum of weight. The web resists shear forces while the flanges resist the bending moment experienced by the beam. Thus I-Beams are very efficient for carrying bending and shear loads in the plane of the web. The weakness of the shape is that it doesn't resist torsional forces nor does it have much capacity in the transverse direction. If strengths in those areas are needed, hollow structural sections (HSS) are preferred.
Steel I-Beams are typically produced by a rolling process that was invented in 1849 by Alphonse Halbou in France. The use of rolled I-Beams was common into the mid-20th century. Today, fabricated I-Beams, which are produced by welding together the flanges and web are also common.
US Standards
In the US, the Wide Flange (W-Beams) are the most common. These beams have flanges which are almost parallel. Relevant standards with yield strengths are:
- ASTM A992: 50,000 - 65,000 psi (340-450 MPa)
- A588: Similar to A572
- A572: 42,000 - 60,000 psi (290 - 410 MPa), but 50,000 psi (340 MPa) is the most common.
- A36: 36,000 psi (250 MPa)
A992 has generally replaced the older A572 and A36 standards.
The American Institute of Steel Construction (AISC) publishes the Steel Construction Manual for designing structures of various shapes. It documents the common approaches, Allowable Stress Design (ASD) and Load and Resistance Factor Design (LRFD), (starting with 13th ed.) to create such designs.
Euronorms
- EN 10024: Hot rolled taper flange I sections
- EN 10034: Structural steel I and H sections
- EN 10162: Cold rolled steel sections
Other Standards
- ASTM A6, American Standard Beams
- IS 808 - Dimensions hot rolled steel beam, column, channel and angle sections
- AS/NZS 3679.1 - Australia and New Zealand standard
Steel I-Beam Sizes (Wide Flange)
Name
Depth
Width
Web Thickness
Flange Thickness
Sectional Area
Weight lbs/ft
W 27 x 178
27.8
14.09
0.725
1.19
52.3
178
W 27 x 161
27.6
14.02
0.66
1.08
47.4
161
W 27 x 146
27.4
14
0.605
0.975
42.9
146
W 27 x 114
27.3
10.07
0.57
0.93
33.5
114
W 27 x 102
27.1
10.02
0.515
0.83
30
102
W 27 x 94
26.9
10
0.49
0.745
27.7
94
W 27 x 84
26.7
9.96
0.46
0.64
24.8
84
W 24 x 162
25
13
0.705
1.22
47.7
162
W 24 x 146
24.7
12.9
0.65
1.09
43
146
W 24 x 131
24.5
12.9
0.605
0.96
38.5
131
W 24 x 117
24.3
12.8
0.55
0.85
34.4
117
W 24 x 104
24.1
12.75
0.5
0.75
30.6
104
W 24 x 94
24.1
9.07
0.515
0.875
27.7
94
W 24 x 84
24.1
9.02
0.47
0.77
24.7
84
W 24 x 76
23.9
9
0.44
0.68
22.4
76
W 24 x 68
23.7
8.97
0.415
0.585
20.1
68
W 24 x 62
23.7
7.04
0.43
0.59
18.2
62
W 24 x 55
23.6
7.01
0.395
0.505
16.2
55
W 21 x 147
22.1
12.51
0.72
1.15
43.2
147
W 21 x 132
21.8
12.44
0.65
1.035
38.8
132
W 21 x 122
21.7
12.39
0.6
0.96
35.9
122
W 21 x 111
21.5
12.34
0.55
0.875
32.7
111
W 21 x 101
21.4
12.29
0.5
0.8
29.8
101
W 21 x 93
21.6
8.42
0.58
0.93
27.3
93
W 21 x 83
21.4
8.36
0.515
835
24.3
83
W 21 x 73
21.2
8.3
0.455
0.74
21.5
73
W 21 x 68
21.1
8.27
0.43
0.685
20
68
W 21 x 62
21
8.24
0.4
0.615
18.3
62
W 21 x 57
21.1
6.56
0.405
0.65
16.7
57
W 21 x 50
20.8
6.53
0.38
0.535
14.7
50
W 21 x 44
20.7
6.5
0.35
0.45
13
44
W 18 x 119
19
11.27
0.655
1.06
35.1
119
W 18 x 106
18.7
11.2
0.59
0.94
31.1
106
W 18 x 97
18.6
11.15
0.535
0.87
28.5
97
W 18 x 86
18.4
11.09
0.48
0.77
25.3
86
W 18 x 76
18.2
11.04
0.425
0.68
22.3
76
W 18 x 71
18.5
7.64
0.495
0.81
20.8
71
W 18 x 65
18.4
7.59
0.45
0.75
19.1
65
W 18 x 60
18.2
7.56
0.415
0.695
17.6
60
W 18 x 55
18.1
7.53
0.39
0.63
16.2
55
W 18 x 50
18
7.5
0.355
0.57
14.7
50
W 18 x 46
18.1
6.06
0.36
0.605
13.5
46
W 18 x 40
17.9
6.02
0.315
0.525
11.8
40
W 18 x 35
17.7
6
0.3
0.425
10.3
35
W 16 x 100
16.97
10.425
0.585
0.985
29.4
100
W 16 x 89
16.75
10.365
0.525
0.875
26.2
89
W 16 x 77
16.52
10.295
0.455
0.76
22.6
77
W 16 x 67
16.33
10.235
0.395
0.665
19.7
67
W 16 x 57
16.43
7.12
0.43
0.715
16.8
57
W 16 x 50
16.26
7.07
0.38
0.63
14.7
50
W 16 x 45
16.13
7.035
0.345
0.565
13.3
45
W 16 x 40
16.01
6.995
0.305
0.505
11.8
40
W 16 x 36
15.86
6.985
0.295
0.43
10.6
36
W 16 x 31
15.88
5.525
0.275
0.44
9.12
31
W 16 x 26
15.69
5.5
0.25
0.345
7.68
26
W 14 x 132
14.66
14.725
0.645
1.03
38.8
132
W 14 x 120
14.48
14.67
0.59
0.94
35.3
120
W 14 x 109
14.32
14.605
0.525
0.86
32
109
W 14 x 99
14.16
14.565
0.485
0.78
29.1
99
W 14 x 90
14.02
14.52
0.44
0.71
26.5
90
W 14 x 82
14.31
10.13
0.51
0.855
24.1
82
W 14 x 74
14.17
10.07
0.45
0.785
21.8
74
W 14 x 68
14.04
10.035
0.415
0.72
20
68
W 14 x 61
13.89
9.995
0.375
0.645
17.9
61
W 14 x 53
13.92
8.06
0.37
0.66
15.6
53
W 14 x 48
13.79
8.03
0.34
0.595
14.1
48
W 14 x 43
13.66
7.995
0.305
0.53
12.6
43
W 14 x 38
14.1
6.77
0.31
0.515
11.2
38
W 14 x 34
13.98
6.745
0.285
0.455
10
34
W 14 x 30
13.84
6.73
0.27
0.385
8.85
30
W 14 x 26
13.91
5.025
0.255
0.42
7.69
26
W 14 x 22
13.74
5
0.23
0.335
6.49
22
W 12 x 136
13.41
12.4
0.79
1.25
39.9
136
W 12 x 120
13.12
12.32
0.71
1.105
35.3
120
W 12 x 106
12.89
12.22
0.61
0.99
31.2
106
W 12 x 96
12.71
12.16
0.55
0.9
28.2
96
W 12 x 87
12.53
12.125
0.515
0.81
25.6
87
W 12 x 79
12.38
12.08
0.47
0.735
23.2
79
W 12 x 72
12.25
12.04
0.43
0.67
21.1
72
W 12 x 65
12.12
12
0.39
0.605
19.1
65
W 12 x 58
12.19
10.01
0.36
0.64
17
58
W 12 x 53
12.06
9.995
0.345
0.575
15.6
53
W 12 x 50
12.19
8.08
0.37
0.64
14.7
50
W 12 x 45
12.06
8.045
0.335
0.575
13.2
45
W 12 x 40
11.94
8.005
0.295
0.515
11.8
40
W 12 x 35
12.5
6.56
0.3
0.52
10.3
35
W 12 x 30
12.34
6.52
0.26
0.44
8.8
30
W 12 x 26
12.22
6.49
0.23
0.38
7.7
26
W 12 x 22
12.31
4.03
0.26
0.425
6.5
22
W 12 x 19
12.16
4.005
0.235
0.35
5.6
19
W 12 x 16
11.99
3.99
0.22
0.265
4.7
16
W 12 x 14
11.91
3.97
0.2
0.225
4.2
14
W 10 x 112
11.36
10.415
0.755
1.25
32.9
112
W 10 x 100
11.1
10.34
0.68
1.112
29.4
100
W 10 x 88
10.84
10.265
0.605
0.99
25.9
88
W 10 x 77
10.6
10.19
0.53
0.87
22.6
77
W 10 x 68
10.4
10.13
0.47
770
20
68
W 10 x 60
10.22
10.08
0.42
0.68
17.6
60
W 10 x 54
10.09
10.03
0.37
0.615
15.8
54
W 10 x 49
9.98
10
0.34
0.56
14.4
49
W 10 x 45
10.1
8.02
0.35
0.62
13.3
45
W 10 x 39
9.92
7.985
0.315
0.53
11.5
39
W 10 x 33
9.73
7.96
0.29
0.435
9.71
33
W 10 x 30
10.47
5.81
0.3
0.51
8.84
30
W 10 x 26
10.33
5.77
0.26
0.44
7.6
26
W 10 x 22
10.17
5.75
0.24
0.36
6.5
22
W 10 x 19
10.24
4.02
0.25
0.395
5.6
19
W 10 x 17
10.11
4.01
0.24
0.33
5
17
W 10 x 15
9.99
4
0.23
0.27
4.4
15
W 10 x 12
9.87
3.96
0.19
0.21
3.5
12
W 8 x 67
9
8.28
0.57
0.935
19.7
67
W 8 x 58
8.75
8.22
0.51
0.81
17.1
58
W 8 x 48
8.5
8.11
0.4
0.685
14.1
48
W 8 x 40
8.25
8.07
0.36
0.56
11.7
40
W 8 x 35
8.12
8.02
0.31
0.495
10.3
35
W 8 x 31
8
7.995
0.285
0.435
9.1
31
W 8 x 28
8.06
6.535
0.285
0.465
8.3
28
W 8 x 24
7.93
6.495
0.245
0.4
7.1
24
W 8 x 21
8.28
5.27
0.25
0.4
6.2
21
W 8 x 18
8.14
5.25
0.23
0.33
5.3
18
W 8 x 15
8.11
4.015
0.245
0.315
4.4
15
W 8 x 13
7.99
4
0.23
0.255
3.8
13
W 8 x 10
7.89
3.94
0.17
0.205
2.9
10
W 6 x 25
6.38
6.08
0.32
0.455
7.3
25
W 6 x 20
6.2
6.02
0.26
0.365
5.9
20
W 6 x 16
6.28
4.03
0.26
0.405
4.7
16
W 6 x 15
5.99
5.99
0.23
0.26
4.4
15
W 6 x 12
6.03
4
0.23
0.28
3.6
12
W 6 x 9
5.9
3.94
0.17
0.215
2.7
9
W 5 x 19
5.15
5.03
0.27
0.43
5.5
19
W 5 x 16
5.01
5
0.24
0.36
4.7
16
W 4 x 13
4.16
4.06
0.28
0.345
3.8
13
Steel I-Beam Sizes (S)
Name
Depth
Width
Web Thickness
Sectional Area
Weight lbs/ft
S 24 x 121
24.5
8.05
0.8
35.6
121
S 24 x 106
24.5
7.78
0.62
31.2
106
S 24 x 100
24
7.425
0.745
29.3
100
S 24 x 90
24
7.125
0.625
26.5
90
S 24 x 80
24
7
0.5
23.5
80
S 20 x 96
20.3
7.2
0.8
28.2
96
S 20 x 86
20.3
7.06
0.66
25.3
86
S 20 x 75
20
6.385
0.635
22
75
S 20 x 66
20
6.255
0.505
19.4
66
S 18 x 70
18
6.251
0.711
20.6
70
S 18 x 54.7
18
6.001
0.461
16.1
54.7
S 15 x 50
15
5.64
0.55
14.7
50
S 15 x 42.9
15
5.501
0.411
12.6
42.9
S 12 x 50
12
5.477
0.687
14.7
50
S 12 x 40.8
12
5.252
0.462
12
40.8
S 12 x 35
12
5.078
0.428
10.3
35
S 12 x 31.8
12
5
0.35
9.35
31.8
S 10 x 35
10
4.944
0.594
10.3
35
S 10 x 25.4
10
4.661
0.311
7.46
25.4
S 8 x 23
8
4.171
0.441
6.77
23
S 8 x 18.4
8
4.001
0.271
5.41
18.4
S 7 x 20
7
3.86
0.45
5.88
20
S 7 x 15.3
7
3.662
0.252
4.5
15.3
S 6 x 17.25
6
3.565
0.465
5.07
17.25
S 6 x 12.5
6
3.332
0.232
3.67
12.5
S 5 x 14.75
5
3.284
0.494
4.34
14.75
S 5 x 10
5
3.004
0.214
2.94
10
S 4 x 9.5
4
2.796
0.326
2.79
9.5
S 4 x 7.7
4
2.663
0.193
2.26
7.7
S 3 x 7.5
3
2.509
0.349
2.21
7.5
S 3 x 5.7
3
2.33
0.17
1.67
5.7
What Next? How about this:
Steel Channel Sizes
Structural Channel is also know as C-beam. It's a type of structural steel beam used primarily in building construction and civil engineering. Channel cross section is "C" shaped and consists of a wide web (usually oriented vertically in use) and two "flanges" at the top and bottom of the web.
C-Beams are not symmetrical (at least when used vertically) like I-Beams, which means the bending axis is not centered on the width of the flanges. If we apply a load to the top of a flange, the beam will try to twist away from the web. This may not be a problem for some designs, but it results in channels being less commonly used than I-Beams for structural purposes.
Instead, they are most often used where the large flat web will either be mounted to another flat surface for maximum contact area, or will face outward to hide the flanges for aesthetic reasons.
The applicable US standard for Steel used in Channel is ASTM A-36, which specifies a yield point of 36,000 psi minimum.
Steel Channel Size Chart
Name
Depth (in)
Width (in)
Web Thickness (in)
Weight Llbs / Foot
C 15 x 50
15
3.716
0.716
50
C 15 x 40
15
3.52
0.52
40
C 15 x 33.9
15
3.4
0.4
33.9
C 12 x 30
12
3.17
0.51
30
C 12 x 25
12
3.047
0.387
25
C 12 x 20.7
12
2.942
0.282
20.7
C 10 x 30
10
3.033
0.673
30
C 10 x 25
10
2.886
0.526
25
C 10 x 20
10
2.739
0.379
20
C 10 x 15.3
10
2.6
0.24
15.3
C 9 x 20
9
2.648
0.448
20
C 9 x 15
9
2.485
0.285
15
C 9 x 13.4
9
2.433
0.233
13.4
C 8 x 18.75
8
2.527
0.487
18.75
C 8 x 13.75
8
2.343
0.303
13.75
C 8 x 11.5
8
2.26
0.22
11.5
C 7 x 14.75
7
2.299
0.419
14.75
C 7 x 12.25
7
2.194
0.314
12.25
C 7 x 9.8
7
2.09
0.21
9.8
C 6 x 13
6
2.157
0.437
13
C 6 x 10.5
6
2.034
0.314
10.5
C 6 x 8.2
6
1.92
0.2
8.2
C 5 x 9
5
1.885
0.325
9
C 5 x 6.7
5
1.75
0.19
6.7
C 4 x 7.25
4
1.721
0.321
7.25
C 4 x 5.4
4
1.584
0.184
5.4
C 3 x 6
3
1.596
0.356
6
C 3 x 5
3
1.498
0.258
5
C 3 x 4.1
3
1.41
0.17
4.1
Steel Angle Sizes
Steel Angle is another Structural Steel shape that's commonly available. Angle typically has an L-shaped cross section.
Size
Depth
Thickness
Weight/Ft
12 x 12
12
1 3/8
105
12
1 1/4
96.4
12
1 1/8
87.2
12
1
77.8
10 x 10
10
1 3/8
87.1
10
1 1/4
79.9
10
1 1/8
72.3
10
1
64.7
10
7/8
56.9
10
3/4
49.1
8 x 8
8
1 1/8
56.9
8
1
51
8
7/8
45
8
3/4
38.9
8
5/8
32.7
8
9/16
29.6
8
1/2
26.4
6 x 6
6
1
37.4
6
7/8
33.1
6
3/4
28.7
6
5/8
24.2
6
9/16
21.9
6
1/2
19.6
6
7/16
17.2
6
3/8
14.9
6
5/16
12.4
5 x 5
5
7/8
27.2
5
3/4
23.6
5
5/8
20
5
1/2
16.2
5
7/16
14.3
5
3/8
12.3
5
5/16
10.3
4 x 4
4
3/4
18.5
4
5/8
15.7
4
1/2
12.8
4
7/16
11.3
4
3/8
9.8
4
5/16
8.2
4
1/4
6.6
3 1/2 x 3 1/2
3 1/2
1/2
11.1
3 1/2
7/16
9.8
3 1/2
3/8
8.5
3 1/2
5/16
7.2
3 1/2
1/4
5.8
3 x 3
3
1/2
9.4
3
7/16
8.3
3
3/8
7.2
3
5/16
6.1
3
1/4
4.9
3
3/16
3.7
2 1/2 x 2 1/2
2 1/2
1/2
7.7
2 1/2
3/8
5.9
2 1/2
5/16
5
2 1/2
1/4
4.1
2 1/2
3/16
3.1
2 x 2
2
3/8
4.7
2
5/16
3.9
2
1/4
3.2
2
3/16
2.4
2
1/8
1.7
Hollow Structural Section (HSS) Sizes
Hollow Structural Sections (HSS) are one of the standard structural steel shapes. HSS sections are profiles with a hollow tubular cross section that is typically square or rectangular, although circular and elliptical setions are also available. These sections are also commonly called tube steel or structural tubing, and they are sometimes mistakenly called "Hollow Structural Steel." Circular sections are sometimes mistakenly called "Steel Pipe" rather than tubing although true steel pipe is dimensioned and classed differently from HSS.
HSS is a term used in the US and other countries that follow US construction and engineering terminology. In the UK, the term HSS is not used. Rather, the basic shapes are referred to as CHS (Circular Hollow Section), SHS (Square Hollow Section), and RHS (Rectangular Hollow Section).
HSS is commonly used in welded steel frames whose members experience loading in multiple directions. Square and circular HSS are very efficient shapes for multi-axis loading because of their uniform geometry along two or more cross-sectional axes. Typically, HSS is available in mild steel such as A500 grade C or grade B.
Hollow Structural Section (HSS) Size Table
Size
Weight (lb/ft)
Wall Thickness (in)
32 x 32 x 5/8
259.83
0.625
32 x 32 x 1/2
210.72
0.5
32 x 32 x 3/8
159.37
0.375
30 x 30 x 5/8
242.82
0.625
30 x 30 x 1/2
197.11
0.5
30 x 30 x 3/8
149.16
0.375
28 x 28 x 5/8
225.8
0.625
28 x 28 x 1/2
183.5
0.5
28 x 28 x 3/8
138.95
0.375
26 x 26 x 5/8
208.79
0.625
26 x 26 x 1/2
169.89
0.5
26 x 26 x 3/8
128.74
0.375
24 x 24 x 5/8
191.78
0.625
24 x 24 x 1/2
156.28
0.5
24 x 24 x 3/8
118.53
0.375
22 x 22 x 5/8
174.76
0.625
22 x 22 x 1/2
142.67
0.5
22 x 22 x 3/8
108.32
0.375
20 x 20 x 5/8
157.75
0.625
20 x 20 x 1/2
129.06
0.5
20 x 20 x 3/8
98.12
0.375
18 x 18 x 5/8
140.73
0.625
18 x 18 x 1/2
115.45
0.5
18 x 18 x 3/8
87.91
0.375
16 x 16 x 5/8
127.37
0.581
16 x 16 x 1/2
103.3
0.465
16 x 16 x 3/8
78.52
0.349
16 x 16 x 5/16
65.87
0.291
14 x 14 x 5/8
110.36
0.581
14 x 14 x 1/2
89.68
0.465
14 x 14 x 3/8
68.31
0.349
14 x 14 x 5/16
57.36
0.291
12 x 12 x 5/8
93.34
0.581
12 x 12 x 1/2
76.07
0.465
12 x 12 x 3/8
58.1
0.349
12 x 12 x 5/16
48.86
0.291
12 x 12 x 1/4
39.43
0.233
10 x 10 x 5/8
76.33
0.581
10 x 10 x 1/2
62.46
0.465
10 x 10 x 3/8
47.9
0.349
10 x 10 x 5/16
40.35
0.291
10 x 10 x 1/4
32.63
0.233
10 x 10 x 3/16
24.73
0.174
9 x 9 x 1/2
55.66
0.465
9 x 9 x 3/8
42.79
0.349
9 x 9 x 5/16
36.1
0.291
9 x 9 x 1/4
29.23
0.233
9 x 9 x 3/16
22.18
0.174
8 x 8 x 5/8
59.32
0.581
8 x 8 x 1/2
48.85
0.465
8 x 8 x 3/8
37.69
0.349
8 x 8 x 5/16
31.84
0.291
8 x 8 x 1/4
25.82
0.233
8 x 8 x 3/16
19.63
0.174
7 x 7 x 5/8
50.81
0.581
7 x 7 x 1/2
42.05
0.465
7 x 7 x 3/8
32.58
0.349
7 x 7 x 5/16
27.59
0.291
7 x 7 x 1/4
22.42
0.233
7 x 7 x 3/16
17.08
0.174
6 x 6 x 5/8
42.3
0.581
6 x 6 x 1/2
35.24
0.465
6 x 6 x 3/8
27.48
0.349
6 x 6 x 5/16
23.34
0.291
6 x 6 x 1/4
19.02
0.233
6 x 6 x 3/16
14.53
0.174
6 x 6 x 1/8
9.86
0.116
5-1/2 x 5-1/2 x 3/8
24.93
0.349
5-1/2 x 5-1/2 x 5/16
21.21
0.291
5-1/2 x 5-1/2 x 1/4
17.32
0.233
5-1/2 x 5-1/2 x 3/16
13.25
0.174
5-1/2 x 5-1/2 x 1/8
9.01
0.116
5 x 5 x 1/2
28.43
0.465
5 x 5 x 3/8
22.37
0.349
5 x 5 x 5/16
19.08
0.291
5 x 5 x 1/4
15.62
0.233
5 x 5 x 3/16
11.97
0.174
5 x 5 x 1/8
8.16
0.116
4-1/2 x 4-1/2 x 1/2
25.03
0.465
4-1/2 x 4-1/2 x 3/8
19.82
0.349
4-1/2 x 4-1/2 x 5/16
16.96
0.291
4-1/2 x 4-1/2 x 1/4
13.91
0.233
4-1/2 x 4-1/2 x 3/16
10.7
0.174
4-1/2 x 4-1/2 x 1/8
7.31
0.116
4 x 4 x 1/2
21.63
0.465
4 x 4 x 3/8
17.27
0.349
4 x 4 x 5/16
14.83
0.291
4 x 4 x 1/4
12.21
0.233
4 x 4 x 3/16
9.42
0.174
4 x 4 x 1/8
6.46
0.116
3-1/2 x 3-1/2 x 3/8
14.72
0.349
3-1/2 x 3-1/2 x 5/16
12.7
0.291
3-1/2 x 3-1/2 x 1/4
10.51
0.233
3-1/2 x 3-1/2 x 3/16
8.15
0.174
3-1/2 x 3-1/2 x 1/8
5.61
0.116
3 x 3 x 3/8
12.17
0.349
3 x 3 x 5/16
10.58
0.291
3 x 3 x 1/4
8.81
0.233
3 x 3 x 3/16
6.87
0.174
3 x 3 x 1/8
4.75
0.116
2-1/2 x 2-1/2 x 5/16
8.45
0.291
2-1/2 x 2-1/2 x 1/4
7.11
0.233
2-1/2 x 2-1/2 x 3/16
5.59
0.174
2-1/2 x 2-1/2 x 1/8
3.9
0.116
2-1/4 x 2-1/4 x 1/4
6.26
0.233
2-1/4 x 2-1/4 x 3/16
4.96
0.174
2-1/4 x 2-1/4 x 1/8
3.48
0.116
2 x 2 x 1/4
5.41
0.233
2 x 2 x 3/16
4.32
0.174
2 x 2 x 1/8
3.05
0.116
1-3/4 x 1-3/4 x 3/16
3.68
0.174
1-5/8 x 1-5/8 x 3/16
3.36
0.174
1-5/8 x 1-5/8 x 1/8
2.42
0.116
1-1/2 x 1-1/2 x 3/16
3.04
0.174
1-1/2 x 1-1/2 x 1/8
2.2
0.116
1-1/4 x 1-1/4 x 3/16
2.4
0.174
1-1/4 x 1-1/4 x 1/8
1.78
0.116
Angle Iron Span Chart
Type and Size
Member
Space Between Double Channel
Allowable Concentrated Load ( lbs )
At Center Of Span ( ft. )
3
4
5
6
7
8
Single Angle
3" x 3" x 1/4"
1290
970
770
645
555
485
Single Angle
4" x 3" x 3/8"
3330
2500
2000
1670
1430
1250
Single Angle
5" x 3" x 3/8"
4900
3660
2930
2440
2100
1830
Single Angle
6" x 4" x 3/8"
7350
5500
4400
3670
3140
2750
Single Channel
4" @ 5.4 #
4220
3170
2540
2060
1510
1160
Single Channel
5" @ 6.7 #
6670
5000
4000
3120
2290
1750
Single Channel
6" @ 8.2 #
9560
7170
5740
4370
3220
2460
Single Channel
7" @ 9.8 #
13300
10000
8000
6050
4450
3420
Single Channel
8" @ 11.5 #
18000
13500
10800
8300
6050
4650
Single Channel
9" @ 13.4 #
23300
17500
14000
10800
8000
6080
Single Channel
10" @ 15.3 #
29800
22400
17900
14100
10300
7900
Double Channel
4" @ 5.4 #
2"
8440
6340
5080
4220
3620
3170
Double Channel
5" @ 6.7 #
2-1/2"
13340
10000
8000
6660
5720
5000
Double Channel
6" @ 8.2 #
2-1/2"
19120
14340
11480
9580
8200
7180
Double Channel
7" @ 9.8 #
3"
26600
20000
16000
13300
11440
10000
Double Channel
8" @ 11.5 #
3"
36000
27000
21600
18000
15440
13500
Double Channel
9" @ 13.4 #
3-1/2"
35000
28000
23300
20000
17500
Double Channel
10" @ 15.3 #
3-1/2"
35800
29800
25600
22400
Other CNCCookbook Material Size References
-
I-Beam and Structural Steel Sizes
-
Commercial Lumber Sizes
-
Sheet Metal Gauge Chart
-
Metal Weight Calculator [ Pipe, Plate, Angle, etc ]
-
How to Figure Board Feet [Calculator, Formulas, & Chart]
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