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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W14 × 74
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 = 796 in4) for the W14 × 74 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 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 5.56 × 10-6 8.89
80.0 6.01 × 10-6 9.61
90.0 6.77 × 10-6 10.8
100 7.52 × 10-6 12.0
200 1.50 × 10-5 24.0
300 2.26 × 10-5 36.0
400 3.01 × 10-5 48.1
500 3.76 × 10-5 60.1
600 4.51 × 10-5 72.1
700 5.26 × 10-5 84.1
800 6.01 × 10-5 96.1
900 6.77 × 10-5 108
1000 7.52 × 10-5 120
2000 1.50 × 10-4 240
3000 2.26 × 10-4 360
4000 3.01 × 10-4 481
5000 3.76 × 10-4 601
6000 4.51 × 10-4 721
7000 5.26 × 10-4 841
8000 6.01 × 10-4 961
9000 6.77 × 10-4 1080
1.00 × 104 7.52 × 10-4 1200
2.00 × 104 0.00150 2400
3.00 × 104 0.00226 3600
4.00 × 104 0.00301 4810
5.00 × 104 0.00376 6010
6.00 × 104 0.00451 7210
7.00 × 104 0.00526 8410
8.00 × 104 0.00601 9610
9.00 × 104 0.00677 1.08 × 104
1.00 × 105 0.00752 1.20 × 104
2.00 × 105 0.0150 2.40 × 104
3.00 × 105 0.0226 3.60 × 104
4.00 × 105 0.0301 4.81 × 104
5.00 × 105 0.0376 6.01 × 104
6.00 × 105 0.0451 7.21 × 104
7.00 × 105 0.0526 8.41 × 104
8.00 × 105 0.0601 9.61 × 104
9.00 × 105 0.0677 1.08 × 105
1.00 × 106 0.0752 1.20 × 105
2.00 × 106 0.150 2.40 × 105
2.47 × 106 0.186 2.97 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 4.29 × 10-5 24.7
80.0 4.64 × 10-5 26.7
90.0 5.22 × 10-5 30.0
100 5.80 × 10-5 33.4
200 1.16 × 10-4 66.8
300 1.74 × 10-4 100
400 2.32 × 10-4 134
500 2.90 × 10-4 167
600 3.48 × 10-4 200
700 4.06 × 10-4 234
800 4.64 × 10-4 267
900 5.22 × 10-4 300
1000 5.80 × 10-4 334
2000 0.00116 668
3000 0.00174 1000
4000 0.00232 1340
5000 0.00290 1670
6000 0.00348 2000
7000 0.00406 2340
8000 0.00464 2670
9000 0.00522 3000
1.00 × 104 0.00580 3340
2.00 × 104 0.0116 6680
3.00 × 104 0.0174 1.00 × 104
4.00 × 104 0.0232 1.34 × 104
5.00 × 104 0.0290 1.67 × 104
6.00 × 104 0.0348 2.00 × 104
7.00 × 104 0.0406 2.34 × 104
8.00 × 104 0.0464 2.67 × 104
9.00 × 104 0.0522 3.00 × 104
1.00 × 105 0.0580 3.34 × 104
2.00 × 105 0.116 6.68 × 104
3.00 × 105 0.174 1.00 × 105
4.00 × 105 0.232 1.34 × 105
5.00 × 105 0.290 1.67 × 105
6.00 × 105 0.348 2.00 × 105
7.00 × 105 0.406 2.34 × 105
8.00 × 105 0.464 2.67 × 105
8.90 × 105 0.516 2.97 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 6.87 × 10-4 98.8
80.0 7.42 × 10-4 107
90.0 8.35 × 10-4 120
100 9.28 × 10-4 134
200 0.00186 267
300 0.00278 401
400 0.00371 534
500 0.00464 668
600 0.00557 801
700 0.00650 935
800 0.00742 1070
900 0.00835 1200
1000 0.00928 1340
2000 0.0186 2670
3000 0.0278 4010
4000 0.0371 5340
5000 0.0464 6680
6000 0.0557 8010
7000 0.0650 9350
8000 0.0742 1.07 × 104
9000 0.0835 1.20 × 104
1.00 × 104 0.0928 1.34 × 104
2.00 × 104 0.186 2.67 × 104
3.00 × 104 0.278 4.01 × 104
4.00 × 104 0.371 5.34 × 104
5.00 × 104 0.464 6.68 × 104
6.00 × 104 0.557 8.01 × 104
7.00 × 104 0.650 9.35 × 104
8.00 × 104 0.742 1.07 × 105
9.00 × 104 0.835 1.20 × 105
1.00 × 105 0.928 1.34 × 105
2.00 × 105 1.86 2.67 × 105
2.22 × 105 2.06 2.97 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 0.00348 222
80.0 0.00376 240
90.0 0.00423 270
100 0.00470 300
200 0.00940 601
300 0.0141 901
400 0.0188 1200
500 0.0235 1500
600 0.0282 1800
700 0.0329 2100
800 0.0376 2400
900 0.0423 2700
1000 0.0470 3000
2000 0.0940 6010
3000 0.141 9010
4000 0.188 1.20 × 104
5000 0.235 1.50 × 104
6000 0.282 1.80 × 104
7000 0.329 2.10 × 104
8000 0.376 2.40 × 104
9000 0.423 2.70 × 104
1.00 × 104 0.470 3.00 × 104
2.00 × 104 0.940 6.01 × 104
3.00 × 104 1.41 9.01 × 104
4.00 × 104 1.88 1.20 × 105
5.00 × 104 2.35 1.50 × 105
6.00 × 104 2.82 1.80 × 105
7.00 × 104 3.29 2.10 × 105
8.00 × 104 3.76 2.40 × 105
9.00 × 104 4.23 2.70 × 105
9.89 × 104 4.65 2.97 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 0.0110 395
80.0 0.0119 427
90.0 0.0134 481
100 0.0148 534
200 0.0297 1070
300 0.0445 1600
400 0.0594 2140
500 0.0742 2670
600 0.0891 3200
700 0.104 3740
800 0.119 4270
900 0.134 4810
1000 0.148 5340
2000 0.297 1.07 × 104
3000 0.445 1.60 × 104
4000 0.594 2.14 × 104
5000 0.742 2.67 × 104
6000 0.891 3.20 × 104
7000 1.04 3.74 × 104
8000 1.19 4.27 × 104
9000 1.34 4.81 × 104
1.00 × 104 1.48 5.34 × 104
2.00 × 104 2.97 1.07 × 105
3.00 × 104 4.45 1.60 × 105
4.00 × 104 5.94 2.14 × 105
5.00 × 104 7.42 2.67 × 105
5.56 × 104 8.26 2.97 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 0.0268 617
80.0 0.0290 668
90.0 0.0326 751
100 0.0363 834
200 0.0725 1670
300 0.109 2500
400 0.145 3340
500 0.181 4170
600 0.218 5010
700 0.254 5840
800 0.290 6680
900 0.326 7510
1000 0.363 8340
2000 0.725 1.67 × 104
3000 1.09 2.50 × 104
4000 1.45 3.34 × 104
5000 1.81 4.17 × 104
6000 2.18 5.01 × 104
7000 2.54 5.84 × 104
8000 2.90 6.68 × 104
9000 3.26 7.51 × 104
1.00 × 104 3.63 8.34 × 104
2.00 × 104 7.25 1.67 × 105
3.00 × 104 10.9 2.50 × 105
3.56 × 104 12.9 2.97 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 0.0556 889
80.0 0.0601 961
90.0 0.0677 1080
100 0.0752 1200
200 0.150 2400
300 0.226 3600
400 0.301 4810
500 0.376 6010
600 0.451 7210
700 0.526 8410
800 0.601 9610
900 0.677 1.08 × 104
1000 0.752 1.20 × 104
2000 1.50 2.40 × 104
3000 2.26 3.60 × 104
4000 3.01 4.81 × 104
5000 3.76 6.01 × 104
6000 4.51 7.21 × 104
7000 5.26 8.41 × 104
8000 6.01 9.61 × 104
9000 6.77 1.08 × 105
1.00 × 104 7.52 1.20 × 105
1.89 × 104 14.2 2.27 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 0.176 1580
80.0 0.190 1710
90.0 0.214 1920
100 0.238 2140
200 0.475 4270
300 0.713 6410
400 0.950 8540
500 1.19 1.07 × 104
600 1.43 1.28 × 104
700 1.66 1.50 × 104
800 1.90 1.71 × 104
900 2.14 1.92 × 104
1000 2.38 2.14 × 104
2000 4.75 4.27 × 104
3000 7.13 6.41 × 104
4000 9.50 8.54 × 104
5000 11.9 1.07 × 105
5960 14.2 1.27 × 105
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 0.429 2470
80.0 0.464 2670
90.0 0.522 3000
100 0.580 3340
200 1.16 6680
300 1.74 1.00 × 104
400 2.32 1.34 × 104
500 2.90 1.67 × 104
600 3.48 2.00 × 104
700 4.06 2.34 × 104
800 4.64 2.67 × 104
900 5.22 3.00 × 104
1000 5.80 3.34 × 104
2000 11.6 6.68 × 104
2440 14.2 8.15 × 104
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 0.890 3560
80.0 0.962 3850
90.0 1.08 4330
100 1.20 4810
200 2.41 9610
300 3.61 1.44 × 104
400 4.81 1.92 × 104
500 6.01 2.40 × 104
600 7.22 2.88 × 104
700 8.42 3.36 × 104
800 9.62 3.85 × 104
900 10.8 4.33 × 104
1000 12.0 4.81 × 104
1180 14.2 5.66 × 104
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 1.65 4840
80.0 1.78 5230
90.0 2.01 5890
100 2.23 6540
200 4.46 1.31 × 104
300 6.68 1.96 × 104
400 8.91 2.62 × 104
500 11.1 3.27 × 104
600 13.4 3.93 × 104
636 14.2 4.16 × 104
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 2.81 6320
80.0 3.04 6840
90.0 3.42 7690
100 3.80 8540
200 7.60 1.71 × 104
300 11.4 2.56 × 104
373 14.2 3.19 × 104
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 4.51 8000
80.0 4.87 8650
90.0 5.48 9730
100 6.09 1.08 × 104
200 12.2 2.16 × 104
233 14.2 2.52 × 104
Steel I Beam: W14 × 74 (Wide Flange 14 inch tall × 74 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
74.0 6.87 9880
80.0 7.42 1.07 × 104
90.0 8.35 1.20 × 104
100 9.28 1.34 × 104
153 14.2 2.04 × 104
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