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Wide Flange Steel I Beam: W6 × 12
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W6 × 12
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in a single span, the maximum displacement w_max and the maximum normal stress stress_max occur at the center of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 22.1 in4) for the W6 × 12 Wide Flange Steel I Beam and the typical Young's modulus (E = 3.046 × 107 psi) of steels. Note that the typical yielding stress Yield of steels can range from 1.015 × 104 to 2.970 × 105 psi. The purpose of this page is to give a rough estimation of the load-bearing capacity of this particular beam, rather than a guideline for designing actual building structures. Please check your local building codes for regulatory requirements.

Note: The weight of the beam itself is not included in the calculation.
L = 3 ft
L = 5 ft
L = 10 ft
L = 15 ft
L = 20 ft
L = 25 ft
L = 30 ft
L = 40 ft
L = 50 ft
L = 60 ft
  
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 3.25 × 10-5 22.1
20.0 5.42 × 10-5 36.8
30.0 8.12 × 10-5 55.3
40.0 1.08 × 10-4 73.7
50.0 1.35 × 10-4 92.1
60.0 1.62 × 10-4 111
70.0 1.90 × 10-4 129
80.0 2.17 × 10-4 147
90.0 2.44 × 10-4 166
100 2.71 × 10-4 184
200 5.42 × 10-4 368
300 8.12 × 10-4 553
400 0.00108 737
500 0.00135 921
600 0.00162 1110
700 0.00190 1290
800 0.00217 1470
900 0.00244 1660
1000 0.00271 1840
2000 0.00542 3680
3000 0.00812 5530
4000 0.0108 7370
5000 0.0135 9210
6000 0.0162 1.11 × 104
7000 0.0190 1.29 × 104
8000 0.0217 1.47 × 104
9000 0.0244 1.66 × 104
1.00 × 104 0.0271 1.84 × 104
2.00 × 104 0.0542 3.68 × 104
3.00 × 104 0.0812 5.53 × 104
4.00 × 104 0.108 7.37 × 104
5.00 × 104 0.135 9.21 × 104
6.00 × 104 0.162 1.11 × 105
7.00 × 104 0.190 1.29 × 105
8.00 × 104 0.217 1.47 × 105
9.00 × 104 0.244 1.66 × 105
1.00 × 105 0.271 1.84 × 105
1.61 × 105 0.437 2.97 × 105
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 2.51 × 10-4 61.4
20.0 4.18 × 10-4 102
30.0 6.27 × 10-4 153
40.0 8.36 × 10-4 205
50.0 0.00104 256
60.0 0.00125 307
70.0 0.00146 358
80.0 0.00167 409
90.0 0.00188 460
100 0.00209 512
200 0.00418 1020
300 0.00627 1530
400 0.00836 2050
500 0.0104 2560
600 0.0125 3070
700 0.0146 3580
800 0.0167 4090
900 0.0188 4600
1000 0.0209 5120
2000 0.0418 1.02 × 104
3000 0.0627 1.53 × 104
4000 0.0836 2.05 × 104
5000 0.104 2.56 × 104
6000 0.125 3.07 × 104
7000 0.146 3.58 × 104
8000 0.167 4.09 × 104
9000 0.188 4.60 × 104
1.00 × 104 0.209 5.12 × 104
2.00 × 104 0.418 1.02 × 105
3.00 × 104 0.627 1.53 × 105
4.00 × 104 0.836 2.05 × 105
5.00 × 104 1.04 2.56 × 105
5.81 × 104 1.21 2.97 × 105
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.00401 246
20.0 0.00669 409
30.0 0.0100 614
40.0 0.0134 819
50.0 0.0167 1020
60.0 0.0201 1230
70.0 0.0234 1430
80.0 0.0267 1640
90.0 0.0301 1840
100 0.0334 2050
200 0.0669 4090
300 0.100 6140
400 0.134 8190
500 0.167 1.02 × 104
600 0.201 1.23 × 104
700 0.234 1.43 × 104
800 0.267 1.64 × 104
900 0.301 1.84 × 104
1000 0.334 2.05 × 104
2000 0.669 4.09 × 104
3000 1.00 6.14 × 104
4000 1.34 8.19 × 104
5000 1.67 1.02 × 105
6000 2.01 1.23 × 105
7000 2.34 1.43 × 105
8000 2.67 1.64 × 105
9000 3.01 1.84 × 105
1.00 × 104 3.34 2.05 × 105
1.45 × 104 4.85 2.97 × 105
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.0203 553
20.0 0.0338 921
30.0 0.0508 1380
40.0 0.0677 1840
50.0 0.0846 2300
60.0 0.102 2760
70.0 0.118 3220
80.0 0.135 3680
90.0 0.152 4140
100 0.169 4600
200 0.338 9210
300 0.508 1.38 × 104
400 0.677 1.84 × 104
500 0.846 2.30 × 104
600 1.02 2.76 × 104
700 1.18 3.22 × 104
800 1.35 3.68 × 104
900 1.52 4.14 × 104
1000 1.69 4.60 × 104
2000 3.38 9.21 × 104
3000 5.08 1.38 × 105
3560 6.03 1.64 × 105
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.0642 982
20.0 0.107 1640
30.0 0.160 2460
40.0 0.214 3270
50.0 0.267 4090
60.0 0.321 4910
70.0 0.374 5730
80.0 0.428 6550
90.0 0.481 7370
100 0.535 8190
200 1.07 1.64 × 104
300 1.60 2.46 × 104
400 2.14 3.27 × 104
500 2.67 4.09 × 104
600 3.21 4.91 × 104
700 3.74 5.73 × 104
800 4.28 6.55 × 104
900 4.81 7.37 × 104
1000 5.35 8.19 × 104
1130 6.03 9.23 × 104
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.157 1530
20.0 0.261 2560
30.0 0.392 3840
40.0 0.522 5120
50.0 0.653 6390
60.0 0.783 7670
70.0 0.914 8950
80.0 1.04 1.02 × 104
90.0 1.18 1.15 × 104
100 1.31 1.28 × 104
200 2.61 2.56 × 104
300 3.92 3.84 × 104
400 5.22 5.12 × 104
462 6.03 5.91 × 104
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.325 2210
20.0 0.542 3680
30.0 0.812 5530
40.0 1.08 7370
50.0 1.35 9210
60.0 1.62 1.11 × 104
70.0 1.90 1.29 × 104
80.0 2.17 1.47 × 104
90.0 2.44 1.66 × 104
100 2.71 1.84 × 104
200 5.42 3.68 × 104
223 6.03 4.10 × 104
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 1.03 3930
20.0 1.71 6550
30.0 2.57 9820
40.0 3.42 1.31 × 104
50.0 4.28 1.64 × 104
60.0 5.13 1.96 × 104
70.0 5.99 2.29 × 104
70.5 6.03 2.31 × 104
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 2.51 6140
20.0 4.18 1.02 × 104
28.9 6.03 1.48 × 104
Steel I Beam: W6 × 12 (Wide Flange 6 inch tall × 12 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 5.20 8840
13.9 6.03 1.03 × 104
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