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Wide Flange Steel I Beam: W14 × 38
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two 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 two equal spans, we compute the displacement at the middle of each span w_mid and the maximum normal stress stress_max occuring at the center support 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 2.36 × 10-6 9.39
40.0 2.49 × 10-6 9.89
50.0 3.11 × 10-6 12.4
60.0 3.73 × 10-6 14.8
70.0 4.35 × 10-6 17.3
80.0 4.97 × 10-6 19.8
90.0 5.60 × 10-6 22.2
100 6.22 × 10-6 24.7
200 1.24 × 10-5 49.4
300 1.87 × 10-5 74.2
400 2.49 × 10-5 98.9
500 3.11 × 10-5 124
600 3.73 × 10-5 148
700 4.35 × 10-5 173
800 4.97 × 10-5 198
900 5.60 × 10-5 222
1000 6.22 × 10-5 247
2000 1.24 × 10-4 494
3000 1.87 × 10-4 742
4000 2.49 × 10-4 989
5000 3.11 × 10-4 1240
6000 3.73 × 10-4 1480
7000 4.35 × 10-4 1730
8000 4.97 × 10-4 1980
9000 5.60 × 10-4 2220
1.00 × 104 6.22 × 10-4 2470
2.00 × 104 0.00124 4940
3.00 × 104 0.00187 7420
4.00 × 104 0.00249 9890
5.00 × 104 0.00311 1.24 × 104
6.00 × 104 0.00373 1.48 × 104
7.00 × 104 0.00435 1.73 × 104
8.00 × 104 0.00497 1.98 × 104
9.00 × 104 0.00560 2.22 × 104
1.00 × 105 0.00622 2.47 × 104
2.00 × 105 0.0124 4.94 × 104
3.00 × 105 0.0187 7.42 × 104
4.00 × 105 0.0249 9.89 × 104
5.00 × 105 0.0311 1.24 × 105
6.00 × 105 0.0373 1.48 × 105
7.00 × 105 0.0435 1.73 × 105
8.00 × 105 0.0497 1.98 × 105
9.00 × 105 0.0560 2.22 × 105
1.00 × 106 0.0622 2.47 × 105
1.20 × 106 0.0747 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 1.82 × 10-5 26.1
40.0 1.92 × 10-5 27.5
50.0 2.40 × 10-5 34.3
60.0 2.88 × 10-5 41.2
70.0 3.36 × 10-5 48.1
80.0 3.84 × 10-5 54.9
90.0 4.32 × 10-5 61.8
100 4.80 × 10-5 68.7
200 9.59 × 10-5 137
300 1.44 × 10-4 206
400 1.92 × 10-4 275
500 2.40 × 10-4 343
600 2.88 × 10-4 412
700 3.36 × 10-4 481
800 3.84 × 10-4 549
900 4.32 × 10-4 618
1000 4.80 × 10-4 687
2000 9.59 × 10-4 1370
3000 0.00144 2060
4000 0.00192 2750
5000 0.00240 3430
6000 0.00288 4120
7000 0.00336 4810
8000 0.00384 5490
9000 0.00432 6180
1.00 × 104 0.00480 6870
2.00 × 104 0.00959 1.37 × 104
3.00 × 104 0.0144 2.06 × 104
4.00 × 104 0.0192 2.75 × 104
5.00 × 104 0.0240 3.43 × 104
6.00 × 104 0.0288 4.12 × 104
7.00 × 104 0.0336 4.81 × 104
8.00 × 104 0.0384 5.49 × 104
9.00 × 104 0.0432 6.18 × 104
1.00 × 105 0.0480 6.87 × 104
2.00 × 105 0.0959 1.37 × 105
3.00 × 105 0.144 2.06 × 105
4.00 × 105 0.192 2.75 × 105
4.33 × 105 0.207 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 2.92 × 10-4 104
40.0 3.07 × 10-4 110
50.0 3.84 × 10-4 137
60.0 4.61 × 10-4 165
70.0 5.37 × 10-4 192
80.0 6.14 × 10-4 220
90.0 6.91 × 10-4 247
100 7.68 × 10-4 275
200 0.00154 549
300 0.00230 824
400 0.00307 1100
500 0.00384 1370
600 0.00461 1650
700 0.00537 1920
800 0.00614 2200
900 0.00691 2470
1000 0.00768 2750
2000 0.0154 5490
3000 0.0230 8240
4000 0.0307 1.10 × 104
5000 0.0384 1.37 × 104
6000 0.0461 1.65 × 104
7000 0.0537 1.92 × 104
8000 0.0614 2.20 × 104
9000 0.0691 2.47 × 104
1.00 × 104 0.0768 2.75 × 104
2.00 × 104 0.154 5.49 × 104
3.00 × 104 0.230 8.24 × 104
4.00 × 104 0.307 1.10 × 105
5.00 × 104 0.384 1.37 × 105
6.00 × 104 0.461 1.65 × 105
7.00 × 104 0.537 1.92 × 105
8.00 × 104 0.614 2.20 × 105
9.00 × 104 0.691 2.47 × 105
1.00 × 105 0.768 2.75 × 105
1.08 × 105 0.830 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 0.00148 235
40.0 0.00155 247
50.0 0.00194 309
60.0 0.00233 371
70.0 0.00272 433
80.0 0.00311 494
90.0 0.00350 556
100 0.00389 618
200 0.00777 1240
300 0.0117 1850
400 0.0155 2470
500 0.0194 3090
600 0.0233 3710
700 0.0272 4330
800 0.0311 4940
900 0.0350 5560
1000 0.0389 6180
2000 0.0777 1.24 × 104
3000 0.117 1.85 × 104
4000 0.155 2.47 × 104
5000 0.194 3.09 × 104
6000 0.233 3.71 × 104
7000 0.272 4.33 × 104
8000 0.311 4.94 × 104
9000 0.350 5.56 × 104
1.00 × 104 0.389 6.18 × 104
2.00 × 104 0.777 1.24 × 105
3.00 × 104 1.17 1.85 × 105
4.00 × 104 1.55 2.47 × 105
4.81 × 104 1.87 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 0.00467 418
40.0 0.00491 439
50.0 0.00614 549
60.0 0.00737 659
70.0 0.00860 769
80.0 0.00982 879
90.0 0.0111 989
100 0.0123 1100
200 0.0246 2200
300 0.0368 3300
400 0.0491 4390
500 0.0614 5490
600 0.0737 6590
700 0.0860 7690
800 0.0982 8790
900 0.111 9890
1000 0.123 1.10 × 104
2000 0.246 2.20 × 104
3000 0.368 3.30 × 104
4000 0.491 4.39 × 104
5000 0.614 5.49 × 104
6000 0.737 6.59 × 104
7000 0.860 7.69 × 104
8000 0.982 8.79 × 104
9000 1.11 9.89 × 104
1.00 × 104 1.23 1.10 × 105
2.00 × 104 2.46 2.20 × 105
2.70 × 104 3.32 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 0.0114 652
40.0 0.0120 687
50.0 0.0150 858
60.0 0.0180 1030
70.0 0.0210 1200
80.0 0.0240 1370
90.0 0.0270 1550
100 0.0300 1720
200 0.0600 3430
300 0.0899 5150
400 0.120 6870
500 0.150 8580
600 0.180 1.03 × 104
700 0.210 1.20 × 104
800 0.240 1.37 × 104
900 0.270 1.55 × 104
1000 0.300 1.72 × 104
2000 0.600 3.43 × 104
3000 0.899 5.15 × 104
4000 1.20 6.87 × 104
5000 1.50 8.58 × 104
6000 1.80 1.03 × 105
7000 2.10 1.20 × 105
8000 2.40 1.37 × 105
9000 2.70 1.55 × 105
1.00 × 104 3.00 1.72 × 105
1.73 × 104 5.19 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 0.0236 939
40.0 0.0249 989
50.0 0.0311 1240
60.0 0.0373 1480
70.0 0.0435 1730
80.0 0.0497 1980
90.0 0.0560 2220
100 0.0622 2470
200 0.124 4940
300 0.187 7420
400 0.249 9890
500 0.311 1.24 × 104
600 0.373 1.48 × 104
700 0.435 1.73 × 104
800 0.497 1.98 × 104
900 0.560 2.22 × 104
1000 0.622 2.47 × 104
2000 1.24 4.94 × 104
3000 1.87 7.42 × 104
4000 2.49 9.89 × 104
5000 3.11 1.24 × 105
6000 3.73 1.48 × 105
7000 4.35 1.73 × 105
8000 4.97 1.98 × 105
9000 5.60 2.22 × 105
1.00 × 104 6.22 2.47 × 105
1.20 × 104 7.47 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 0.0747 1670
40.0 0.0786 1760
50.0 0.0982 2200
60.0 0.118 2640
70.0 0.138 3080
80.0 0.157 3520
90.0 0.177 3960
100 0.196 4390
200 0.393 8790
300 0.589 1.32 × 104
400 0.786 1.76 × 104
500 0.982 2.20 × 104
600 1.18 2.64 × 104
700 1.38 3.08 × 104
800 1.57 3.52 × 104
900 1.77 3.96 × 104
1000 1.96 4.39 × 104
2000 3.93 8.79 × 104
3000 5.89 1.32 × 105
4000 7.86 1.76 × 105
5000 9.82 2.20 × 105
6000 11.8 2.64 × 105
6760 13.3 2.97 × 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 0.182 2610
40.0 0.192 2750
50.0 0.240 3430
60.0 0.288 4120
70.0 0.336 4810
80.0 0.384 5490
90.0 0.432 6180
100 0.480 6870
200 0.959 1.37 × 104
300 1.44 2.06 × 104
400 1.92 2.75 × 104
500 2.40 3.43 × 104
600 2.88 4.12 × 104
700 3.36 4.81 × 104
800 3.84 5.49 × 104
900 4.32 6.18 × 104
1000 4.80 6.87 × 104
2000 9.59 1.37 × 105
2940 14.1 2.02 × 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 0.378 3760
40.0 0.398 3960
50.0 0.497 4940
60.0 0.597 5930
70.0 0.696 6920
80.0 0.796 7910
90.0 0.895 8900
100 0.995 9890
200 1.99 1.98 × 104
300 2.98 2.97 × 104
400 3.98 3.96 × 104
500 4.97 4.94 × 104
600 5.97 5.93 × 104
700 6.96 6.92 × 104
800 7.96 7.91 × 104
900 8.95 8.90 × 104
1000 9.95 9.89 × 104
1420 14.1 1.40 × 105
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 0.700 5110
40.0 0.737 5380
50.0 0.921 6730
60.0 1.11 8080
70.0 1.29 9420
80.0 1.47 1.08 × 104
90.0 1.66 1.21 × 104
100 1.84 1.35 × 104
200 3.69 2.69 × 104
300 5.53 4.04 × 104
400 7.37 5.38 × 104
500 9.21 6.73 × 104
600 11.1 8.08 × 104
700 12.9 9.42 × 104
765 14.1 1.03 × 105
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 1.19 6680
40.0 1.26 7030
50.0 1.57 8790
60.0 1.89 1.05 × 104
70.0 2.20 1.23 × 104
80.0 2.51 1.41 × 104
90.0 2.83 1.58 × 104
100 3.14 1.76 × 104
200 6.29 3.52 × 104
300 9.43 5.27 × 104
400 12.6 7.03 × 104
449 14.1 7.88 × 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 1.91 8450
40.0 2.01 8900
50.0 2.52 1.11 × 104
60.0 3.02 1.33 × 104
70.0 3.52 1.56 × 104
80.0 4.03 1.78 × 104
90.0 4.53 2.00 × 104
100 5.04 2.22 × 104
200 10.1 4.45 × 104
280 14.1 6.23 × 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 2.92 1.04 × 104
40.0 3.07 1.10 × 104
50.0 3.84 1.37 × 104
60.0 4.61 1.65 × 104
70.0 5.37 1.92 × 104
80.0 6.14 2.20 × 104
90.0 6.91 2.47 × 104
100 7.68 2.75 × 104
184 14.1 5.05 × 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 7.12 1.63 × 104
40.0 7.50 1.72 × 104
50.0 9.37 2.15 × 104
60.0 11.2 2.58 × 104
70.0 13.1 3.00 × 104
75.2 14.1 3.23 × 104
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