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Wide Flange Steel I Beam: W12 × 26
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W12 × 26
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 = 204 in4) for the W12 × 26 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
L = 70 ft
L = 80 ft
L = 90 ft
L = 100 ft
   
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 7.63 × 10-6 10.5
30.0 8.80 × 10-6 12.1
40.0 1.17 × 10-5 16.2
50.0 1.47 × 10-5 20.2
60.0 1.76 × 10-5 24.3
70.0 2.05 × 10-5 28.3
80.0 2.35 × 10-5 32.3
90.0 2.64 × 10-5 36.4
100 2.93 × 10-5 40.4
200 5.87 × 10-5 80.9
300 8.80 × 10-5 121
400 1.17 × 10-4 162
500 1.47 × 10-4 202
600 1.76 × 10-4 243
700 2.05 × 10-4 283
800 2.35 × 10-4 323
900 2.64 × 10-4 364
1000 2.93 × 10-4 404
2000 5.87 × 10-4 809
3000 8.80 × 10-4 1210
4000 0.00117 1620
5000 0.00147 2020
6000 0.00176 2430
7000 0.00205 2830
8000 0.00235 3230
9000 0.00264 3640
1.00 × 104 0.00293 4040
2.00 × 104 0.00587 8090
3.00 × 104 0.00880 1.21 × 104
4.00 × 104 0.0117 1.62 × 104
5.00 × 104 0.0147 2.02 × 104
6.00 × 104 0.0176 2.43 × 104
7.00 × 104 0.0205 2.83 × 104
8.00 × 104 0.0235 3.23 × 104
9.00 × 104 0.0264 3.64 × 104
1.00 × 105 0.0293 4.04 × 104
2.00 × 105 0.0587 8.09 × 104
3.00 × 105 0.0880 1.21 × 105
4.00 × 105 0.117 1.62 × 105
5.00 × 105 0.147 2.02 × 105
6.00 × 105 0.176 2.43 × 105
7.00 × 105 0.205 2.83 × 105
7.35 × 105 0.215 2.97 × 105
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 5.88 × 10-5 29.2
30.0 6.79 × 10-5 33.7
40.0 9.05 × 10-5 44.9
50.0 1.13 × 10-4 56.2
60.0 1.36 × 10-4 67.4
70.0 1.58 × 10-4 78.6
80.0 1.81 × 10-4 89.9
90.0 2.04 × 10-4 101
100 2.26 × 10-4 112
200 4.53 × 10-4 225
300 6.79 × 10-4 337
400 9.05 × 10-4 449
500 0.00113 562
600 0.00136 674
700 0.00158 786
800 0.00181 899
900 0.00204 1010
1000 0.00226 1120
2000 0.00453 2250
3000 0.00679 3370
4000 0.00905 4490
5000 0.0113 5620
6000 0.0136 6740
7000 0.0158 7860
8000 0.0181 8990
9000 0.0204 1.01 × 104
1.00 × 104 0.0226 1.12 × 104
2.00 × 104 0.0453 2.25 × 104
3.00 × 104 0.0679 3.37 × 104
4.00 × 104 0.0905 4.49 × 104
5.00 × 104 0.113 5.62 × 104
6.00 × 104 0.136 6.74 × 104
7.00 × 104 0.158 7.86 × 104
8.00 × 104 0.181 8.99 × 104
9.00 × 104 0.204 1.01 × 105
1.00 × 105 0.226 1.12 × 105
2.00 × 105 0.453 2.25 × 105
2.64 × 105 0.599 2.97 × 105
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 9.42 × 10-4 117
30.0 0.00109 135
40.0 0.00145 180
50.0 0.00181 225
60.0 0.00217 270
70.0 0.00253 314
80.0 0.00290 359
90.0 0.00326 404
100 0.00362 449
200 0.00724 899
300 0.0109 1350
400 0.0145 1800
500 0.0181 2250
600 0.0217 2700
700 0.0253 3140
800 0.0290 3590
900 0.0326 4040
1000 0.0362 4490
2000 0.0724 8990
3000 0.109 1.35 × 104
4000 0.145 1.80 × 104
5000 0.181 2.25 × 104
6000 0.217 2.70 × 104
7000 0.253 3.14 × 104
8000 0.290 3.59 × 104
9000 0.326 4.04 × 104
1.00 × 104 0.362 4.49 × 104
2.00 × 104 0.724 8.99 × 104
3.00 × 104 1.09 1.35 × 105
4.00 × 104 1.45 1.80 × 105
5.00 × 104 1.81 2.25 × 105
6.00 × 104 2.17 2.70 × 105
6.61 × 104 2.39 2.97 × 105
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.00477 263
30.0 0.00550 303
40.0 0.00733 404
50.0 0.00917 505
60.0 0.0110 607
70.0 0.0128 708
80.0 0.0147 809
90.0 0.0165 910
100 0.0183 1010
200 0.0367 2020
300 0.0550 3030
400 0.0733 4040
500 0.0917 5050
600 0.110 6070
700 0.128 7080
800 0.147 8090
900 0.165 9100
1000 0.183 1.01 × 104
2000 0.367 2.02 × 104
3000 0.550 3.03 × 104
4000 0.733 4.04 × 104
5000 0.917 5.05 × 104
6000 1.10 6.07 × 104
7000 1.28 7.08 × 104
8000 1.47 8.09 × 104
9000 1.65 9.10 × 104
1.00 × 104 1.83 1.01 × 105
2.00 × 104 3.67 2.02 × 105
2.94 × 104 5.39 2.97 × 105
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0151 467
30.0 0.0174 539
40.0 0.0232 719
50.0 0.0290 899
60.0 0.0348 1080
70.0 0.0406 1260
80.0 0.0464 1440
90.0 0.0521 1620
100 0.0579 1800
200 0.116 3590
300 0.174 5390
400 0.232 7190
500 0.290 8990
600 0.348 1.08 × 104
700 0.406 1.26 × 104
800 0.464 1.44 × 104
900 0.521 1.62 × 104
1000 0.579 1.80 × 104
2000 1.16 3.59 × 104
3000 1.74 5.39 × 104
4000 2.32 7.19 × 104
5000 2.90 8.99 × 104
6000 3.48 1.08 × 105
7000 4.06 1.26 × 105
8000 4.64 1.44 × 105
9000 5.21 1.62 × 105
1.00 × 104 5.79 1.80 × 105
1.65 × 104 9.58 2.97 × 105
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0368 730
30.0 0.0424 842
40.0 0.0566 1120
50.0 0.0707 1400
60.0 0.0849 1680
70.0 0.0990 1970
80.0 0.113 2250
90.0 0.127 2530
100 0.141 2810
200 0.283 5620
300 0.424 8420
400 0.566 1.12 × 104
500 0.707 1.40 × 104
600 0.849 1.68 × 104
700 0.990 1.97 × 104
800 1.13 2.25 × 104
900 1.27 2.53 × 104
1000 1.41 2.81 × 104
2000 2.83 5.62 × 104
3000 4.24 8.42 × 104
4000 5.66 1.12 × 105
5000 7.07 1.40 × 105
6000 8.49 1.68 × 105
7000 9.90 1.97 × 105
8000 11.3 2.25 × 105
8640 12.2 2.43 × 105
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0763 1050
30.0 0.0880 1210
40.0 0.117 1620
50.0 0.147 2020
60.0 0.176 2430
70.0 0.205 2830
80.0 0.235 3230
90.0 0.264 3640
100 0.293 4040
200 0.587 8090
300 0.880 1.21 × 104
400 1.17 1.62 × 104
500 1.47 2.02 × 104
600 1.76 2.43 × 104
700 2.05 2.83 × 104
800 2.35 3.23 × 104
900 2.64 3.64 × 104
1000 2.93 4.04 × 104
2000 5.87 8.09 × 104
3000 8.80 1.21 × 105
4000 11.7 1.62 × 105
4170 12.2 1.68 × 105
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.241 1870
30.0 0.278 2160
40.0 0.371 2880
50.0 0.464 3590
60.0 0.556 4310
70.0 0.649 5030
80.0 0.742 5750
90.0 0.834 6470
100 0.927 7190
200 1.85 1.44 × 104
300 2.78 2.16 × 104
400 3.71 2.88 × 104
500 4.64 3.59 × 104
600 5.56 4.31 × 104
700 6.49 5.03 × 104
800 7.42 5.75 × 104
900 8.34 6.47 × 104
1000 9.27 7.19 × 104
1320 12.2 9.48 × 104
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.588 2920
30.0 0.679 3370
40.0 0.905 4490
50.0 1.13 5620
60.0 1.36 6740
70.0 1.58 7860
80.0 1.81 8990
90.0 2.04 1.01 × 104
100 2.26 1.12 × 104
200 4.53 2.25 × 104
300 6.79 3.37 × 104
400 9.05 4.49 × 104
500 11.3 5.62 × 104
540 12.2 6.06 × 104
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 1.22 4210
30.0 1.41 4850
40.0 1.88 6470
50.0 2.35 8090
60.0 2.82 9700
70.0 3.29 1.13 × 104
80.0 3.75 1.29 × 104
90.0 4.22 1.46 × 104
100 4.69 1.62 × 104
200 9.39 3.23 × 104
260 12.2 4.21 × 104
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 2.26 5720
30.0 2.61 6600
40.0 3.48 8810
50.0 4.35 1.10 × 104
60.0 5.22 1.32 × 104
70.0 6.09 1.54 × 104
80.0 6.96 1.76 × 104
90.0 7.83 1.98 × 104
100 8.69 2.20 × 104
141 12.2 3.09 × 104
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 3.86 7480
30.0 4.45 8630
40.0 5.93 1.15 × 104
50.0 7.42 1.44 × 104
60.0 8.90 1.73 × 104
70.0 10.4 2.01 × 104
80.0 11.9 2.30 × 104
82.4 12.2 2.37 × 104
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 6.18 9460
30.0 7.13 1.09 × 104
40.0 9.50 1.46 × 104
50.0 11.9 1.82 × 104
51.4 12.2 1.87 × 104
Steel I Beam: W12 × 26 (Wide Flange 12 inch tall × 26 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 9.42 1.17 × 104
30.0 10.9 1.35 × 104
33.7 12.2 1.52 × 104
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