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Wide Flange Steel I Beam: W14 × 38
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Wide Flange Steel I Beam » W14 × 38
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress stress_max occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 385 in4) for the W14 × 38 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 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 2.86 × 10-6 8.05
40.0 3.01 × 10-6 8.47
50.0 3.76 × 10-6 10.6
60.0 4.51 × 10-6 12.7
70.0 5.26 × 10-6 14.8
80.0 6.02 × 10-6 16.9
90.0 6.77 × 10-6 19.1
100 7.52 × 10-6 21.2
200 1.50 × 10-5 42.4
300 2.26 × 10-5 63.5
400 3.01 × 10-5 84.7
500 3.76 × 10-5 106
600 4.51 × 10-5 127
700 5.26 × 10-5 148
800 6.02 × 10-5 169
900 6.77 × 10-5 191
1000 7.52 × 10-5 212
2000 1.50 × 10-4 424
3000 2.26 × 10-4 635
4000 3.01 × 10-4 847
5000 3.76 × 10-4 1060
6000 4.51 × 10-4 1270
7000 5.26 × 10-4 1480
8000 6.02 × 10-4 1690
9000 6.77 × 10-4 1910
1.00 × 104 7.52 × 10-4 2120
2.00 × 104 0.00150 4240
3.00 × 104 0.00226 6350
4.00 × 104 0.00301 8470
5.00 × 104 0.00376 1.06 × 104
6.00 × 104 0.00451 1.27 × 104
7.00 × 104 0.00526 1.48 × 104
8.00 × 104 0.00602 1.69 × 104
9.00 × 104 0.00677 1.91 × 104
1.00 × 105 0.00752 2.12 × 104
2.00 × 105 0.0150 4.24 × 104
3.00 × 105 0.0226 6.35 × 104
4.00 × 105 0.0301 8.47 × 104
5.00 × 105 0.0376 1.06 × 105
6.00 × 105 0.0451 1.27 × 105
7.00 × 105 0.0526 1.48 × 105
8.00 × 105 0.0602 1.69 × 105
9.00 × 105 0.0677 1.91 × 105
1.00 × 106 0.0752 2.12 × 105
1.40 × 106 0.105 2.97 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 2.20 × 10-5 22.4
40.0 2.32 × 10-5 23.5
50.0 2.90 × 10-5 29.4
60.0 3.48 × 10-5 35.3
70.0 4.06 × 10-5 41.2
80.0 4.64 × 10-5 47.1
90.0 5.22 × 10-5 53.0
100 5.80 × 10-5 58.8
200 1.16 × 10-4 118
300 1.74 × 10-4 177
400 2.32 × 10-4 235
500 2.90 × 10-4 294
600 3.48 × 10-4 353
700 4.06 × 10-4 412
800 4.64 × 10-4 471
900 5.22 × 10-4 530
1000 5.80 × 10-4 588
2000 0.00116 1180
3000 0.00174 1770
4000 0.00232 2350
5000 0.00290 2940
6000 0.00348 3530
7000 0.00406 4120
8000 0.00464 4710
9000 0.00522 5300
1.00 × 104 0.00580 5880
2.00 × 104 0.0116 1.18 × 104
3.00 × 104 0.0174 1.77 × 104
4.00 × 104 0.0232 2.35 × 104
5.00 × 104 0.0290 2.94 × 104
6.00 × 104 0.0348 3.53 × 104
7.00 × 104 0.0406 4.12 × 104
8.00 × 104 0.0464 4.71 × 104
9.00 × 104 0.0522 5.30 × 104
1.00 × 105 0.0580 5.88 × 104
2.00 × 105 0.116 1.18 × 105
3.00 × 105 0.174 1.77 × 105
4.00 × 105 0.232 2.35 × 105
5.00 × 105 0.290 2.94 × 105
5.05 × 105 0.293 2.97 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 3.53 × 10-4 89.4
40.0 3.71 × 10-4 94.1
50.0 4.64 × 10-4 118
60.0 5.57 × 10-4 141
70.0 6.50 × 10-4 165
80.0 7.43 × 10-4 188
90.0 8.36 × 10-4 212
100 9.28 × 10-4 235
200 0.00186 471
300 0.00279 706
400 0.00371 941
500 0.00464 1180
600 0.00557 1410
700 0.00650 1650
800 0.00743 1880
900 0.00836 2120
1000 0.00928 2350
2000 0.0186 4710
3000 0.0279 7060
4000 0.0371 9410
5000 0.0464 1.18 × 104
6000 0.0557 1.41 × 104
7000 0.0650 1.65 × 104
8000 0.0743 1.88 × 104
9000 0.0836 2.12 × 104
1.00 × 104 0.0928 2.35 × 104
2.00 × 104 0.186 4.71 × 104
3.00 × 104 0.279 7.06 × 104
4.00 × 104 0.371 9.41 × 104
5.00 × 104 0.464 1.18 × 105
6.00 × 104 0.557 1.41 × 105
7.00 × 104 0.650 1.65 × 105
8.00 × 104 0.743 1.88 × 105
9.00 × 104 0.836 2.12 × 105
1.00 × 105 0.928 2.35 × 105
1.26 × 105 1.17 2.97 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.00179 201
40.0 0.00188 212
50.0 0.00235 265
60.0 0.00282 318
70.0 0.00329 371
80.0 0.00376 424
90.0 0.00423 477
100 0.00470 530
200 0.00940 1060
300 0.0141 1590
400 0.0188 2120
500 0.0235 2650
600 0.0282 3180
700 0.0329 3710
800 0.0376 4240
900 0.0423 4770
1000 0.0470 5300
2000 0.0940 1.06 × 104
3000 0.141 1.59 × 104
4000 0.188 2.12 × 104
5000 0.235 2.65 × 104
6000 0.282 3.18 × 104
7000 0.329 3.71 × 104
8000 0.376 4.24 × 104
9000 0.423 4.77 × 104
1.00 × 104 0.470 5.30 × 104
2.00 × 104 0.940 1.06 × 105
3.00 × 104 1.41 1.59 × 105
4.00 × 104 1.88 2.12 × 105
5.00 × 104 2.35 2.65 × 105
5.61 × 104 2.64 2.97 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.00564 358
40.0 0.00594 377
50.0 0.00743 471
60.0 0.00891 565
70.0 0.0104 659
80.0 0.0119 753
90.0 0.0134 847
100 0.0149 941
200 0.0297 1880
300 0.0446 2820
400 0.0594 3770
500 0.0743 4710
600 0.0891 5650
700 0.104 6590
800 0.119 7530
900 0.134 8470
1000 0.149 9410
2000 0.297 1.88 × 104
3000 0.446 2.82 × 104
4000 0.594 3.77 × 104
5000 0.743 4.71 × 104
6000 0.891 5.65 × 104
7000 1.04 6.59 × 104
8000 1.19 7.53 × 104
9000 1.34 8.47 × 104
1.00 × 104 1.49 9.41 × 104
2.00 × 104 2.97 1.88 × 105
3.00 × 104 4.46 2.82 × 105
3.16 × 104 4.69 2.97 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.0138 559
40.0 0.0145 588
50.0 0.0181 735
60.0 0.0218 883
70.0 0.0254 1030
80.0 0.0290 1180
90.0 0.0326 1320
100 0.0363 1470
200 0.0725 2940
300 0.109 4410
400 0.145 5880
500 0.181 7350
600 0.218 8830
700 0.254 1.03 × 104
800 0.290 1.18 × 104
900 0.326 1.32 × 104
1000 0.363 1.47 × 104
2000 0.725 2.94 × 104
3000 1.09 4.41 × 104
4000 1.45 5.88 × 104
5000 1.81 7.35 × 104
6000 2.18 8.83 × 104
7000 2.54 1.03 × 105
8000 2.90 1.18 × 105
9000 3.26 1.32 × 105
1.00 × 104 3.63 1.47 × 105
2.00 × 104 7.25 2.94 × 105
2.02 × 104 7.32 2.97 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.0286 805
40.0 0.0301 847
50.0 0.0376 1060
60.0 0.0451 1270
70.0 0.0526 1480
80.0 0.0602 1690
90.0 0.0677 1910
100 0.0752 2120
200 0.150 4240
300 0.226 6350
400 0.301 8470
500 0.376 1.06 × 104
600 0.451 1.27 × 104
700 0.526 1.48 × 104
800 0.602 1.69 × 104
900 0.677 1.91 × 104
1000 0.752 2.12 × 104
2000 1.50 4.24 × 104
3000 2.26 6.35 × 104
4000 3.01 8.47 × 104
5000 3.76 1.06 × 105
6000 4.51 1.27 × 105
7000 5.26 1.48 × 105
8000 6.02 1.69 × 105
9000 6.77 1.91 × 105
1.00 × 104 7.52 2.12 × 105
1.40 × 104 10.5 2.97 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.0903 1430
40.0 0.0951 1510
50.0 0.119 1880
60.0 0.143 2260
70.0 0.166 2640
80.0 0.190 3010
90.0 0.214 3390
100 0.238 3770
200 0.475 7530
300 0.713 1.13 × 104
400 0.951 1.51 × 104
500 1.19 1.88 × 104
600 1.43 2.26 × 104
700 1.66 2.64 × 104
800 1.90 3.01 × 104
900 2.14 3.39 × 104
1000 2.38 3.77 × 104
2000 4.75 7.53 × 104
3000 7.13 1.13 × 105
4000 9.51 1.51 × 105
5000 11.9 1.88 × 105
5930 14.1 2.23 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.220 2240
40.0 0.232 2350
50.0 0.290 2940
60.0 0.348 3530
70.0 0.406 4120
80.0 0.464 4710
90.0 0.522 5300
100 0.580 5880
200 1.16 1.18 × 104
300 1.74 1.77 × 104
400 2.32 2.35 × 104
500 2.90 2.94 × 104
600 3.48 3.53 × 104
700 4.06 4.12 × 104
800 4.64 4.71 × 104
900 5.22 5.30 × 104
1000 5.80 5.88 × 104
2000 11.6 1.18 × 105
2430 14.1 1.43 × 105
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.457 3220
40.0 0.481 3390
50.0 0.602 4240
60.0 0.722 5080
70.0 0.842 5930
80.0 0.963 6780
90.0 1.08 7630
100 1.20 8470
200 2.41 1.69 × 104
300 3.61 2.54 × 104
400 4.81 3.39 × 104
500 6.02 4.24 × 104
600 7.22 5.08 × 104
700 8.42 5.93 × 104
800 9.63 6.78 × 104
900 10.8 7.63 × 104
1000 12.0 8.47 × 104
1170 14.1 9.93 × 104
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 0.847 4380
40.0 0.892 4610
50.0 1.11 5770
60.0 1.34 6920
70.0 1.56 8070
80.0 1.78 9230
90.0 2.01 1.04 × 104
100 2.23 1.15 × 104
200 4.46 2.31 × 104
300 6.69 3.46 × 104
400 8.92 4.61 × 104
500 11.1 5.77 × 104
600 13.4 6.92 × 104
633 14.1 7.29 × 104
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 1.44 5720
40.0 1.52 6020
50.0 1.90 7530
60.0 2.28 9040
70.0 2.66 1.05 × 104
80.0 3.04 1.20 × 104
90.0 3.42 1.36 × 104
100 3.80 1.51 × 104
200 7.61 3.01 × 104
300 11.4 4.52 × 104
371 14.1 5.58 × 104
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 2.31 7240
40.0 2.44 7630
50.0 3.05 9530
60.0 3.65 1.14 × 104
70.0 4.26 1.33 × 104
80.0 4.87 1.53 × 104
90.0 5.48 1.72 × 104
100 6.09 1.91 × 104
200 12.2 3.81 × 104
231 14.1 4.41 × 104
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 3.53 8940
40.0 3.71 9410
50.0 4.64 1.18 × 104
60.0 5.57 1.41 × 104
70.0 6.50 1.65 × 104
80.0 7.43 1.88 × 104
90.0 8.36 2.12 × 104
100 9.28 2.35 × 104
152 14.1 3.57 × 104
Steel I Beam: W14 × 38 (Wide Flange 14 inch tall × 38 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
38.0 8.61 1.40 × 104
40.0 9.07 1.47 × 104
50.0 11.3 1.84 × 104
60.0 13.6 2.21 × 104
62.2 14.1 2.29 × 104
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