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Wide Flange Steel I Beam: W14 × 43
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W14 × 43
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 = 428 in4) for the W14 × 43 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 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 6.01 × 10-6 9.26
50.0 6.99 × 10-6 10.8
60.0 8.39 × 10-6 12.9
70.0 9.79 × 10-6 15.1
80.0 1.12 × 10-5 17.2
90.0 1.26 × 10-5 19.4
100 1.40 × 10-5 21.5
200 2.80 × 10-5 43.1
300 4.19 × 10-5 64.6
400 5.59 × 10-5 86.2
500 6.99 × 10-5 108
600 8.39 × 10-5 129
700 9.79 × 10-5 151
800 1.12 × 10-4 172
900 1.26 × 10-4 194
1000 1.40 × 10-4 215
2000 2.80 × 10-4 431
3000 4.19 × 10-4 646
4000 5.59 × 10-4 862
5000 6.99 × 10-4 1080
6000 8.39 × 10-4 1290
7000 9.79 × 10-4 1510
8000 0.00112 1720
9000 0.00126 1940
1.00 × 104 0.00140 2150
2.00 × 104 0.00280 4310
3.00 × 104 0.00419 6460
4.00 × 104 0.00559 8620
5.00 × 104 0.00699 1.08 × 104
6.00 × 104 0.00839 1.29 × 104
7.00 × 104 0.00979 1.51 × 104
8.00 × 104 0.0112 1.72 × 104
9.00 × 104 0.0126 1.94 × 104
1.00 × 105 0.0140 2.15 × 104
2.00 × 105 0.0280 4.31 × 104
3.00 × 105 0.0419 6.46 × 104
4.00 × 105 0.0559 8.62 × 104
5.00 × 105 0.0699 1.08 × 105
6.00 × 105 0.0839 1.29 × 105
7.00 × 105 0.0979 1.51 × 105
8.00 × 105 0.112 1.72 × 105
9.00 × 105 0.126 1.94 × 105
1.00 × 106 0.140 2.15 × 105
1.38 × 106 0.193 2.97 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 4.64 × 10-5 25.7
50.0 5.39 × 10-5 29.9
60.0 6.47 × 10-5 35.9
70.0 7.55 × 10-5 41.9
80.0 8.63 × 10-5 47.9
90.0 9.71 × 10-5 53.9
100 1.08 × 10-4 59.8
200 2.16 × 10-4 120
300 3.24 × 10-4 180
400 4.31 × 10-4 239
500 5.39 × 10-4 299
600 6.47 × 10-4 359
700 7.55 × 10-4 419
800 8.63 × 10-4 479
900 9.71 × 10-4 539
1000 0.00108 598
2000 0.00216 1200
3000 0.00324 1800
4000 0.00431 2390
5000 0.00539 2990
6000 0.00647 3590
7000 0.00755 4190
8000 0.00863 4790
9000 0.00971 5390
1.00 × 104 0.0108 5980
2.00 × 104 0.0216 1.20 × 104
3.00 × 104 0.0324 1.80 × 104
4.00 × 104 0.0431 2.39 × 104
5.00 × 104 0.0539 2.99 × 104
6.00 × 104 0.0647 3.59 × 104
7.00 × 104 0.0755 4.19 × 104
8.00 × 104 0.0863 4.79 × 104
9.00 × 104 0.0971 5.39 × 104
1.00 × 105 0.108 5.98 × 104
2.00 × 105 0.216 1.20 × 105
3.00 × 105 0.324 1.80 × 105
4.00 × 105 0.431 2.39 × 105
4.96 × 105 0.535 2.97 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 7.42 × 10-4 103
50.0 8.63 × 10-4 120
60.0 0.00104 144
70.0 0.00121 168
80.0 0.00138 191
90.0 0.00155 215
100 0.00173 239
200 0.00345 479
300 0.00518 718
400 0.00690 957
500 0.00863 1200
600 0.0104 1440
700 0.0121 1680
800 0.0138 1910
900 0.0155 2150
1000 0.0173 2390
2000 0.0345 4790
3000 0.0518 7180
4000 0.0690 9570
5000 0.0863 1.20 × 104
6000 0.104 1.44 × 104
7000 0.121 1.68 × 104
8000 0.138 1.91 × 104
9000 0.155 2.15 × 104
1.00 × 104 0.173 2.39 × 104
2.00 × 104 0.345 4.79 × 104
3.00 × 104 0.518 7.18 × 104
4.00 × 104 0.690 9.57 × 104
5.00 × 104 0.863 1.20 × 105
6.00 × 104 1.04 1.44 × 105
7.00 × 104 1.21 1.68 × 105
8.00 × 104 1.38 1.91 × 105
9.00 × 104 1.55 2.15 × 105
1.00 × 105 1.73 2.39 × 105
1.24 × 105 2.14 2.97 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 0.00376 232
50.0 0.00437 269
60.0 0.00524 323
70.0 0.00612 377
80.0 0.00699 431
90.0 0.00786 485
100 0.00874 539
200 0.0175 1080
300 0.0262 1620
400 0.0350 2150
500 0.0437 2690
600 0.0524 3230
700 0.0612 3770
800 0.0699 4310
900 0.0786 4850
1000 0.0874 5390
2000 0.175 1.08 × 104
3000 0.262 1.62 × 104
4000 0.350 2.15 × 104
5000 0.437 2.69 × 104
6000 0.524 3.23 × 104
7000 0.612 3.77 × 104
8000 0.699 4.31 × 104
9000 0.786 4.85 × 104
1.00 × 104 0.874 5.39 × 104
2.00 × 104 1.75 1.08 × 105
3.00 × 104 2.62 1.62 × 105
4.00 × 104 3.50 2.15 × 105
5.00 × 104 4.37 2.69 × 105
5.52 × 104 4.82 2.97 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 0.0119 412
50.0 0.0138 479
60.0 0.0166 574
70.0 0.0193 670
80.0 0.0221 766
90.0 0.0249 862
100 0.0276 957
200 0.0552 1910
300 0.0828 2870
400 0.110 3830
500 0.138 4790
600 0.166 5740
700 0.193 6700
800 0.221 7660
900 0.249 8620
1000 0.276 9570
2000 0.552 1.91 × 104
3000 0.828 2.87 × 104
4000 1.10 3.83 × 104
5000 1.38 4.79 × 104
6000 1.66 5.74 × 104
7000 1.93 6.70 × 104
8000 2.21 7.66 × 104
9000 2.49 8.62 × 104
1.00 × 104 2.76 9.57 × 104
2.00 × 104 5.52 1.91 × 105
3.00 × 104 8.28 2.87 × 105
3.10 × 104 8.57 2.97 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 0.0290 643
50.0 0.0337 748
60.0 0.0405 898
70.0 0.0472 1050
80.0 0.0539 1200
90.0 0.0607 1350
100 0.0674 1500
200 0.135 2990
300 0.202 4490
400 0.270 5980
500 0.337 7480
600 0.405 8980
700 0.472 1.05 × 104
800 0.539 1.20 × 104
900 0.607 1.35 × 104
1000 0.674 1.50 × 104
2000 1.35 2.99 × 104
3000 2.02 4.49 × 104
4000 2.70 5.98 × 104
5000 3.37 7.48 × 104
6000 4.05 8.98 × 104
7000 4.72 1.05 × 105
8000 5.39 1.20 × 105
9000 6.07 1.35 × 105
1.00 × 104 6.74 1.50 × 105
1.99 × 104 13.4 2.97 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 0.0601 926
50.0 0.0699 1080
60.0 0.0839 1290
70.0 0.0979 1510
80.0 0.112 1720
90.0 0.126 1940
100 0.140 2150
200 0.280 4310
300 0.419 6460
400 0.559 8620
500 0.699 1.08 × 104
600 0.839 1.29 × 104
700 0.979 1.51 × 104
800 1.12 1.72 × 104
900 1.26 1.94 × 104
1000 1.40 2.15 × 104
2000 2.80 4.31 × 104
3000 4.19 6.46 × 104
4000 5.59 8.62 × 104
5000 6.99 1.08 × 105
6000 8.39 1.29 × 105
7000 9.79 1.51 × 105
8000 11.2 1.72 × 105
9000 12.6 1.94 × 105
9770 13.7 2.10 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 0.190 1650
50.0 0.221 1910
60.0 0.265 2300
70.0 0.309 2680
80.0 0.353 3060
90.0 0.398 3450
100 0.442 3830
200 0.884 7660
300 1.33 1.15 × 104
400 1.77 1.53 × 104
500 2.21 1.91 × 104
600 2.65 2.30 × 104
700 3.09 2.68 × 104
800 3.53 3.06 × 104
900 3.98 3.45 × 104
1000 4.42 3.83 × 104
2000 8.84 7.66 × 104
3000 13.3 1.15 × 105
3090 13.7 1.18 × 105
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 0.464 2570
50.0 0.539 2990
60.0 0.647 3590
70.0 0.755 4190
80.0 0.863 4790
90.0 0.971 5390
100 1.08 5980
200 2.16 1.20 × 104
300 3.24 1.80 × 104
400 4.31 2.39 × 104
500 5.39 2.99 × 104
600 6.47 3.59 × 104
700 7.55 4.19 × 104
800 8.63 4.79 × 104
900 9.71 5.39 × 104
1000 10.8 5.98 × 104
1270 13.7 7.58 × 104
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 0.962 3710
50.0 1.12 4310
60.0 1.34 5170
70.0 1.57 6030
80.0 1.79 6890
90.0 2.01 7760
100 2.24 8620
200 4.47 1.72 × 104
300 6.71 2.59 × 104
400 8.95 3.45 × 104
500 11.2 4.31 × 104
600 13.4 5.17 × 104
611 13.7 5.26 × 104
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 1.78 5040
50.0 2.07 5860
60.0 2.49 7040
70.0 2.90 8210
80.0 3.32 9380
90.0 3.73 1.06 × 104
100 4.14 1.17 × 104
200 8.29 2.35 × 104
300 12.4 3.52 × 104
330 13.7 3.87 × 104
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 3.04 6590
50.0 3.53 7660
60.0 4.24 9190
70.0 4.95 1.07 × 104
80.0 5.66 1.23 × 104
90.0 6.36 1.38 × 104
100 7.07 1.53 × 104
193 13.7 2.96 × 104
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 4.87 8340
50.0 5.66 9690
60.0 6.79 1.16 × 104
70.0 7.93 1.36 × 104
80.0 9.06 1.55 × 104
90.0 10.2 1.75 × 104
100 11.3 1.94 × 104
121 13.7 2.34 × 104
Steel I Beam: W14 × 43 (Wide Flange 14 inch tall × 43 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
43.0 7.42 1.03 × 104
50.0 8.63 1.20 × 104
60.0 10.4 1.44 × 104
70.0 12.1 1.68 × 104
79.1 13.7 1.89 × 104
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