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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W14 × 30
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 = 291 in4) for the W14 × 30 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: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 6.17 × 10-6 9.63
40.0 8.22 × 10-6 12.8
50.0 1.03 × 10-5 16.1
60.0 1.23 × 10-5 19.3
70.0 1.44 × 10-5 22.5
80.0 1.64 × 10-5 25.7
90.0 1.85 × 10-5 28.9
100 2.06 × 10-5 32.1
200 4.11 × 10-5 64.2
300 6.17 × 10-5 96.3
400 8.22 × 10-5 128
500 1.03 × 10-4 161
600 1.23 × 10-4 193
700 1.44 × 10-4 225
800 1.64 × 10-4 257
900 1.85 × 10-4 289
1000 2.06 × 10-4 321
2000 4.11 × 10-4 642
3000 6.17 × 10-4 963
4000 8.22 × 10-4 1280
5000 0.00103 1610
6000 0.00123 1930
7000 0.00144 2250
8000 0.00164 2570
9000 0.00185 2890
1.00 × 104 0.00206 3210
2.00 × 104 0.00411 6420
3.00 × 104 0.00617 9630
4.00 × 104 0.00822 1.28 × 104
5.00 × 104 0.0103 1.61 × 104
6.00 × 104 0.0123 1.93 × 104
7.00 × 104 0.0144 2.25 × 104
8.00 × 104 0.0164 2.57 × 104
9.00 × 104 0.0185 2.89 × 104
1.00 × 105 0.0206 3.21 × 104
2.00 × 105 0.0411 6.42 × 104
3.00 × 105 0.0617 9.63 × 104
4.00 × 105 0.0822 1.28 × 105
5.00 × 105 0.103 1.61 × 105
6.00 × 105 0.123 1.93 × 105
7.00 × 105 0.144 2.25 × 105
8.00 × 105 0.164 2.57 × 105
9.00 × 105 0.185 2.89 × 105
9.25 × 105 0.190 2.97 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 4.76 × 10-5 26.8
40.0 6.35 × 10-5 35.7
50.0 7.93 × 10-5 44.6
60.0 9.52 × 10-5 53.5
70.0 1.11 × 10-4 62.4
80.0 1.27 × 10-4 71.3
90.0 1.43 × 10-4 80.3
100 1.59 × 10-4 89.2
200 3.17 × 10-4 178
300 4.76 × 10-4 268
400 6.35 × 10-4 357
500 7.93 × 10-4 446
600 9.52 × 10-4 535
700 0.00111 624
800 0.00127 713
900 0.00143 803
1000 0.00159 892
2000 0.00317 1780
3000 0.00476 2680
4000 0.00635 3570
5000 0.00793 4460
6000 0.00952 5350
7000 0.0111 6240
8000 0.0127 7130
9000 0.0143 8030
1.00 × 104 0.0159 8920
2.00 × 104 0.0317 1.78 × 104
3.00 × 104 0.0476 2.68 × 104
4.00 × 104 0.0635 3.57 × 104
5.00 × 104 0.0793 4.46 × 104
6.00 × 104 0.0952 5.35 × 104
7.00 × 104 0.111 6.24 × 104
8.00 × 104 0.127 7.13 × 104
9.00 × 104 0.143 8.03 × 104
1.00 × 105 0.159 8.92 × 104
2.00 × 105 0.317 1.78 × 105
3.00 × 105 0.476 2.68 × 105
3.33 × 105 0.528 2.97 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 7.62 × 10-4 107
40.0 0.00102 143
50.0 0.00127 178
60.0 0.00152 214
70.0 0.00178 250
80.0 0.00203 285
90.0 0.00228 321
100 0.00254 357
200 0.00508 713
300 0.00762 1070
400 0.0102 1430
500 0.0127 1780
600 0.0152 2140
700 0.0178 2500
800 0.0203 2850
900 0.0228 3210
1000 0.0254 3570
2000 0.0508 7130
3000 0.0762 1.07 × 104
4000 0.102 1.43 × 104
5000 0.127 1.78 × 104
6000 0.152 2.14 × 104
7000 0.178 2.50 × 104
8000 0.203 2.85 × 104
9000 0.228 3.21 × 104
1.00 × 104 0.254 3.57 × 104
2.00 × 104 0.508 7.13 × 104
3.00 × 104 0.762 1.07 × 105
4.00 × 104 1.02 1.43 × 105
5.00 × 104 1.27 1.78 × 105
6.00 × 104 1.52 2.14 × 105
7.00 × 104 1.78 2.50 × 105
8.00 × 104 2.03 2.85 × 105
8.33 × 104 2.11 2.97 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.00386 241
40.0 0.00514 321
50.0 0.00643 401
60.0 0.00771 482
70.0 0.00900 562
80.0 0.0103 642
90.0 0.0116 722
100 0.0129 803
200 0.0257 1610
300 0.0386 2410
400 0.0514 3210
500 0.0643 4010
600 0.0771 4820
700 0.0900 5620
800 0.103 6420
900 0.116 7220
1000 0.129 8030
2000 0.257 1.61 × 104
3000 0.386 2.41 × 104
4000 0.514 3.21 × 104
5000 0.643 4.01 × 104
6000 0.771 4.82 × 104
7000 0.900 5.62 × 104
8000 1.03 6.42 × 104
9000 1.16 7.22 × 104
1.00 × 104 1.29 8.03 × 104
2.00 × 104 2.57 1.61 × 105
3.00 × 104 3.86 2.41 × 105
3.70 × 104 4.76 2.97 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.0122 428
40.0 0.0162 571
50.0 0.0203 713
60.0 0.0244 856
70.0 0.0284 999
80.0 0.0325 1140
90.0 0.0366 1280
100 0.0406 1430
200 0.0812 2850
300 0.122 4280
400 0.162 5710
500 0.203 7130
600 0.244 8560
700 0.284 9990
800 0.325 1.14 × 104
900 0.366 1.28 × 104
1000 0.406 1.43 × 104
2000 0.812 2.85 × 104
3000 1.22 4.28 × 104
4000 1.62 5.71 × 104
5000 2.03 7.13 × 104
6000 2.44 8.56 × 104
7000 2.84 9.99 × 104
8000 3.25 1.14 × 105
9000 3.66 1.28 × 105
1.00 × 104 4.06 1.43 × 105
2.00 × 104 8.12 2.85 × 105
2.08 × 104 8.46 2.97 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.0297 669
40.0 0.0397 892
50.0 0.0496 1110
60.0 0.0595 1340
70.0 0.0694 1560
80.0 0.0793 1780
90.0 0.0892 2010
100 0.0992 2230
200 0.198 4460
300 0.297 6690
400 0.397 8920
500 0.496 1.11 × 104
600 0.595 1.34 × 104
700 0.694 1.56 × 104
800 0.793 1.78 × 104
900 0.892 2.01 × 104
1000 0.992 2.23 × 104
2000 1.98 4.46 × 104
3000 2.97 6.69 × 104
4000 3.97 8.92 × 104
5000 4.96 1.11 × 105
6000 5.95 1.34 × 105
7000 6.94 1.56 × 105
8000 7.93 1.78 × 105
9000 8.92 2.01 × 105
1.00 × 104 9.92 2.23 × 105
1.33 × 104 13.2 2.97 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.0617 963
40.0 0.0822 1280
50.0 0.103 1610
60.0 0.123 1930
70.0 0.144 2250
80.0 0.164 2570
90.0 0.185 2890
100 0.206 3210
200 0.411 6420
300 0.617 9630
400 0.822 1.28 × 104
500 1.03 1.61 × 104
600 1.23 1.93 × 104
700 1.44 2.25 × 104
800 1.64 2.57 × 104
900 1.85 2.89 × 104
1000 2.06 3.21 × 104
2000 4.11 6.42 × 104
3000 6.17 9.63 × 104
4000 8.22 1.28 × 105
5000 10.3 1.61 × 105
6000 12.3 1.93 × 105
6730 13.8 2.16 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.195 1710
40.0 0.260 2280
50.0 0.325 2850
60.0 0.390 3420
70.0 0.455 4000
80.0 0.520 4570
90.0 0.585 5140
100 0.650 5710
200 1.30 1.14 × 104
300 1.95 1.71 × 104
400 2.60 2.28 × 104
500 3.25 2.85 × 104
600 3.90 3.42 × 104
700 4.55 4.00 × 104
800 5.20 4.57 × 104
900 5.85 5.14 × 104
1000 6.50 5.71 × 104
2000 13.0 1.14 × 105
2130 13.8 1.22 × 105
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.476 2680
40.0 0.635 3570
50.0 0.793 4460
60.0 0.952 5350
70.0 1.11 6240
80.0 1.27 7130
90.0 1.43 8030
100 1.59 8920
200 3.17 1.78 × 104
300 4.76 2.68 × 104
400 6.35 3.57 × 104
500 7.93 4.46 × 104
600 9.52 5.35 × 104
700 11.1 6.24 × 104
800 12.7 7.13 × 104
872 13.8 7.78 × 104
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.987 3850
40.0 1.32 5140
50.0 1.64 6420
60.0 1.97 7700
70.0 2.30 8990
80.0 2.63 1.03 × 104
90.0 2.96 1.16 × 104
100 3.29 1.28 × 104
200 6.58 2.57 × 104
300 9.87 3.85 × 104
400 13.2 5.14 × 104
421 13.8 5.40 × 104
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 1.83 5240
40.0 2.44 6990
50.0 3.05 8740
60.0 3.66 1.05 × 104
70.0 4.27 1.22 × 104
80.0 4.88 1.40 × 104
90.0 5.49 1.57 × 104
100 6.10 1.75 × 104
200 12.2 3.50 × 104
227 13.8 3.97 × 104
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 3.12 6850
40.0 4.16 9130
50.0 5.20 1.14 × 104
60.0 6.24 1.37 × 104
70.0 7.28 1.60 × 104
80.0 8.32 1.83 × 104
90.0 9.36 2.05 × 104
100 10.4 2.28 × 104
133 13.8 3.04 × 104
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 5.00 8670
40.0 6.66 1.16 × 104
50.0 8.33 1.44 × 104
60.0 9.99 1.73 × 104
70.0 11.7 2.02 × 104
80.0 13.3 2.31 × 104
83.1 13.8 2.40 × 104
Steel I Beam: W14 × 30 (Wide Flange 14 inch tall × 30 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 7.62 1.07 × 104
40.0 10.2 1.43 × 104
50.0 12.7 1.78 × 104
54.5 13.8 1.94 × 104
Additional Information
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