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Wide Flange Steel I Beam: W14 × 26
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W14 × 26
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in three equal spans, we compute the displacement at the middle of the first and the third spans, and the maximum normal stress stress_max occuring at the second and third supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 245 in4) for the W14 × 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
L = 125 ft
   
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 3.32 × 10-6 7.97
30.0 3.83 × 10-6 9.20
40.0 5.10 × 10-6 12.3
50.0 6.38 × 10-6 15.3
60.0 7.65 × 10-6 18.4
70.0 8.93 × 10-6 21.5
80.0 1.02 × 10-5 24.5
90.0 1.15 × 10-5 27.6
100 1.28 × 10-5 30.7
200 2.55 × 10-5 61.3
300 3.83 × 10-5 92.0
400 5.10 × 10-5 123
500 6.38 × 10-5 153
600 7.65 × 10-5 184
700 8.93 × 10-5 215
800 1.02 × 10-4 245
900 1.15 × 10-4 276
1000 1.28 × 10-4 307
2000 2.55 × 10-4 613
3000 3.83 × 10-4 920
4000 5.10 × 10-4 1230
5000 6.38 × 10-4 1530
6000 7.65 × 10-4 1840
7000 8.93 × 10-4 2150
8000 0.00102 2450
9000 0.00115 2760
1.00 × 104 0.00128 3070
2.00 × 104 0.00255 6130
3.00 × 104 0.00383 9200
4.00 × 104 0.00510 1.23 × 104
5.00 × 104 0.00638 1.53 × 104
6.00 × 104 0.00765 1.84 × 104
7.00 × 104 0.00893 2.15 × 104
8.00 × 104 0.0102 2.45 × 104
9.00 × 104 0.0115 2.76 × 104
1.00 × 105 0.0128 3.07 × 104
2.00 × 105 0.0255 6.13 × 104
3.00 × 105 0.0383 9.20 × 104
4.00 × 105 0.0510 1.23 × 105
5.00 × 105 0.0638 1.53 × 105
6.00 × 105 0.0765 1.84 × 105
7.00 × 105 0.0893 2.15 × 105
8.00 × 105 0.102 2.45 × 105
9.00 × 105 0.115 2.76 × 105
9.69 × 105 0.124 2.97 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 2.56 × 10-5 22.1
30.0 2.95 × 10-5 25.5
40.0 3.94 × 10-5 34.1
50.0 4.92 × 10-5 42.6
60.0 5.90 × 10-5 51.1
70.0 6.89 × 10-5 59.6
80.0 7.87 × 10-5 68.1
90.0 8.86 × 10-5 76.6
100 9.84 × 10-5 85.2
200 1.97 × 10-4 170
300 2.95 × 10-4 255
400 3.94 × 10-4 341
500 4.92 × 10-4 426
600 5.90 × 10-4 511
700 6.89 × 10-4 596
800 7.87 × 10-4 681
900 8.86 × 10-4 766
1000 9.84 × 10-4 852
2000 0.00197 1700
3000 0.00295 2550
4000 0.00394 3410
5000 0.00492 4260
6000 0.00590 5110
7000 0.00689 5960
8000 0.00787 6810
9000 0.00886 7660
1.00 × 104 0.00984 8520
2.00 × 104 0.0197 1.70 × 104
3.00 × 104 0.0295 2.55 × 104
4.00 × 104 0.0394 3.41 × 104
5.00 × 104 0.0492 4.26 × 104
6.00 × 104 0.0590 5.11 × 104
7.00 × 104 0.0689 5.96 × 104
8.00 × 104 0.0787 6.81 × 104
9.00 × 104 0.0886 7.66 × 104
1.00 × 105 0.0984 8.52 × 104
2.00 × 105 0.197 1.70 × 105
3.00 × 105 0.295 2.55 × 105
3.49 × 105 0.343 2.97 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 4.09 × 10-4 88.6
30.0 4.72 × 10-4 102
40.0 6.30 × 10-4 136
50.0 7.87 × 10-4 170
60.0 9.45 × 10-4 204
70.0 0.00110 238
80.0 0.00126 273
90.0 0.00142 307
100 0.00157 341
200 0.00315 681
300 0.00472 1020
400 0.00630 1360
500 0.00787 1700
600 0.00945 2040
700 0.0110 2380
800 0.0126 2730
900 0.0142 3070
1000 0.0157 3410
2000 0.0315 6810
3000 0.0472 1.02 × 104
4000 0.0630 1.36 × 104
5000 0.0787 1.70 × 104
6000 0.0945 2.04 × 104
7000 0.110 2.38 × 104
8000 0.126 2.73 × 104
9000 0.142 3.07 × 104
1.00 × 104 0.157 3.41 × 104
2.00 × 104 0.315 6.81 × 104
3.00 × 104 0.472 1.02 × 105
4.00 × 104 0.630 1.36 × 105
5.00 × 104 0.787 1.70 × 105
6.00 × 104 0.945 2.04 × 105
7.00 × 104 1.10 2.38 × 105
8.00 × 104 1.26 2.73 × 105
8.72 × 104 1.37 2.97 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.00207 199
30.0 0.00239 230
40.0 0.00319 307
50.0 0.00399 383
60.0 0.00478 460
70.0 0.00558 537
80.0 0.00638 613
90.0 0.00717 690
100 0.00797 766
200 0.0159 1530
300 0.0239 2300
400 0.0319 3070
500 0.0399 3830
600 0.0478 4600
700 0.0558 5370
800 0.0638 6130
900 0.0717 6900
1000 0.0797 7660
2000 0.159 1.53 × 104
3000 0.239 2.30 × 104
4000 0.319 3.07 × 104
5000 0.399 3.83 × 104
6000 0.478 4.60 × 104
7000 0.558 5.37 × 104
8000 0.638 6.13 × 104
9000 0.717 6.90 × 104
1.00 × 104 0.797 7.66 × 104
2.00 × 104 1.59 1.53 × 105
3.00 × 104 2.39 2.30 × 105
3.88 × 104 3.09 2.97 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.00655 354
30.0 0.00756 409
40.0 0.0101 545
50.0 0.0126 681
60.0 0.0151 818
70.0 0.0176 954
80.0 0.0202 1090
90.0 0.0227 1230
100 0.0252 1360
200 0.0504 2730
300 0.0756 4090
400 0.101 5450
500 0.126 6810
600 0.151 8180
700 0.176 9540
800 0.202 1.09 × 104
900 0.227 1.23 × 104
1000 0.252 1.36 × 104
2000 0.504 2.73 × 104
3000 0.756 4.09 × 104
4000 1.01 5.45 × 104
5000 1.26 6.81 × 104
6000 1.51 8.18 × 104
7000 1.76 9.54 × 104
8000 2.02 1.09 × 105
9000 2.27 1.23 × 105
1.00 × 104 2.52 1.36 × 105
2.00 × 104 5.04 2.73 × 105
2.18 × 104 5.49 2.97 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0160 554
30.0 0.0185 639
40.0 0.0246 852
50.0 0.0308 1060
60.0 0.0369 1280
70.0 0.0431 1490
80.0 0.0492 1700
90.0 0.0554 1920
100 0.0615 2130
200 0.123 4260
300 0.185 6390
400 0.246 8520
500 0.308 1.06 × 104
600 0.369 1.28 × 104
700 0.431 1.49 × 104
800 0.492 1.70 × 104
900 0.554 1.92 × 104
1000 0.615 2.13 × 104
2000 1.23 4.26 × 104
3000 1.85 6.39 × 104
4000 2.46 8.52 × 104
5000 3.08 1.06 × 105
6000 3.69 1.28 × 105
7000 4.31 1.49 × 105
8000 4.92 1.70 × 105
9000 5.54 1.92 × 105
1.00 × 104 6.15 2.13 × 105
1.40 × 104 8.58 2.97 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0332 797
30.0 0.0383 920
40.0 0.0510 1230
50.0 0.0638 1530
60.0 0.0765 1840
70.0 0.0893 2150
80.0 0.102 2450
90.0 0.115 2760
100 0.128 3070
200 0.255 6130
300 0.383 9200
400 0.510 1.23 × 104
500 0.638 1.53 × 104
600 0.765 1.84 × 104
700 0.893 2.15 × 104
800 1.02 2.45 × 104
900 1.15 2.76 × 104
1000 1.28 3.07 × 104
2000 2.55 6.13 × 104
3000 3.83 9.20 × 104
4000 5.10 1.23 × 105
5000 6.38 1.53 × 105
6000 7.65 1.84 × 105
7000 8.93 2.15 × 105
8000 10.2 2.45 × 105
9000 11.5 2.76 × 105
9690 12.4 2.97 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.105 1420
30.0 0.121 1640
40.0 0.161 2180
50.0 0.202 2730
60.0 0.242 3270
70.0 0.282 3820
80.0 0.322 4360
90.0 0.363 4910
100 0.403 5450
200 0.806 1.09 × 104
300 1.21 1.64 × 104
400 1.61 2.18 × 104
500 2.02 2.73 × 104
600 2.42 3.27 × 104
700 2.82 3.82 × 104
800 3.22 4.36 × 104
900 3.63 4.91 × 104
1000 4.03 5.45 × 104
2000 8.06 1.09 × 105
3000 12.1 1.64 × 105
3450 13.9 1.88 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.256 2210
30.0 0.295 2550
40.0 0.394 3410
50.0 0.492 4260
60.0 0.590 5110
70.0 0.689 5960
80.0 0.787 6810
90.0 0.886 7660
100 0.984 8520
200 1.97 1.70 × 104
300 2.95 2.55 × 104
400 3.94 3.41 × 104
500 4.92 4.26 × 104
600 5.90 5.11 × 104
700 6.89 5.96 × 104
800 7.87 6.81 × 104
900 8.86 7.66 × 104
1000 9.84 8.52 × 104
1410 13.9 1.20 × 105
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.531 3190
30.0 0.612 3680
40.0 0.816 4910
50.0 1.02 6130
60.0 1.22 7360
70.0 1.43 8580
80.0 1.63 9810
90.0 1.84 1.10 × 104
100 2.04 1.23 × 104
200 4.08 2.45 × 104
300 6.12 3.68 × 104
400 8.16 4.91 × 104
500 10.2 6.13 × 104
600 12.2 7.36 × 104
682 13.9 8.36 × 104
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.983 4340
30.0 1.13 5010
40.0 1.51 6680
50.0 1.89 8350
60.0 2.27 1.00 × 104
70.0 2.65 1.17 × 104
80.0 3.02 1.34 × 104
90.0 3.40 1.50 × 104
100 3.78 1.67 × 104
200 7.56 3.34 × 104
300 11.3 5.01 × 104
368 13.9 6.14 × 104
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 1.68 5670
30.0 1.93 6540
40.0 2.58 8720
50.0 3.22 1.09 × 104
60.0 3.87 1.31 × 104
70.0 4.51 1.53 × 104
80.0 5.16 1.74 × 104
90.0 5.80 1.96 × 104
100 6.45 2.18 × 104
200 12.9 4.36 × 104
216 13.9 4.70 × 104
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 2.69 7170
30.0 3.10 8280
40.0 4.13 1.10 × 104
50.0 5.17 1.38 × 104
60.0 6.20 1.66 × 104
70.0 7.23 1.93 × 104
80.0 8.27 2.21 × 104
90.0 9.30 2.48 × 104
100 10.3 2.76 × 104
135 13.9 3.72 × 104
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 4.09 8860
30.0 4.72 1.02 × 104
40.0 6.30 1.36 × 104
50.0 7.87 1.70 × 104
60.0 9.45 2.04 × 104
70.0 11.0 2.38 × 104
80.0 12.6 2.73 × 104
88.3 13.9 3.01 × 104
Steel I Beam: W14 × 26 (Wide Flange 14 inch tall × 26 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 10.0 1.38 × 104
30.0 11.5 1.60 × 104
36.2 13.9 1.93 × 104
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