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Wide Flange Steel I Beam: W14 × 68
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W14 × 68
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 = 723 in4) for the W14 × 68 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 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 2.25 × 10-6 8.91
70.0 2.32 × 10-6 9.18
80.0 2.65 × 10-6 10.5
90.0 2.98 × 10-6 11.8
100 3.31 × 10-6 13.1
200 6.62 × 10-6 26.2
300 9.93 × 10-6 39.3
400 1.32 × 10-5 52.4
500 1.66 × 10-5 65.5
600 1.99 × 10-5 78.6
700 2.32 × 10-5 91.8
800 2.65 × 10-5 105
900 2.98 × 10-5 118
1000 3.31 × 10-5 131
2000 6.62 × 10-5 262
3000 9.93 × 10-5 393
4000 1.32 × 10-4 524
5000 1.66 × 10-4 655
6000 1.99 × 10-4 786
7000 2.32 × 10-4 918
8000 2.65 × 10-4 1050
9000 2.98 × 10-4 1180
1.00 × 104 3.31 × 10-4 1310
2.00 × 104 6.62 × 10-4 2620
3.00 × 104 9.93 × 10-4 3930
4.00 × 104 0.00132 5240
5.00 × 104 0.00166 6550
6.00 × 104 0.00199 7860
7.00 × 104 0.00232 9180
8.00 × 104 0.00265 1.05 × 104
9.00 × 104 0.00298 1.18 × 104
1.00 × 105 0.00331 1.31 × 104
2.00 × 105 0.00662 2.62 × 104
3.00 × 105 0.00993 3.93 × 104
4.00 × 105 0.0132 5.24 × 104
5.00 × 105 0.0166 6.55 × 104
6.00 × 105 0.0199 7.86 × 104
7.00 × 105 0.0232 9.18 × 104
8.00 × 105 0.0265 1.05 × 105
9.00 × 105 0.0298 1.18 × 105
1.00 × 106 0.0331 1.31 × 105
2.00 × 106 0.0662 2.62 × 105
2.27 × 106 0.0750 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 1.74 × 10-5 24.8
70.0 1.79 × 10-5 25.5
80.0 2.04 × 10-5 29.1
90.0 2.30 × 10-5 32.8
100 2.55 × 10-5 36.4
200 5.11 × 10-5 72.8
300 7.66 × 10-5 109
400 1.02 × 10-4 146
500 1.28 × 10-4 182
600 1.53 × 10-4 218
700 1.79 × 10-4 255
800 2.04 × 10-4 291
900 2.30 × 10-4 328
1000 2.55 × 10-4 364
2000 5.11 × 10-4 728
3000 7.66 × 10-4 1090
4000 0.00102 1460
5000 0.00128 1820
6000 0.00153 2180
7000 0.00179 2550
8000 0.00204 2910
9000 0.00230 3280
1.00 × 104 0.00255 3640
2.00 × 104 0.00511 7280
3.00 × 104 0.00766 1.09 × 104
4.00 × 104 0.0102 1.46 × 104
5.00 × 104 0.0128 1.82 × 104
6.00 × 104 0.0153 2.18 × 104
7.00 × 104 0.0179 2.55 × 104
8.00 × 104 0.0204 2.91 × 104
9.00 × 104 0.0230 3.28 × 104
1.00 × 105 0.0255 3.64 × 104
2.00 × 105 0.0511 7.28 × 104
3.00 × 105 0.0766 1.09 × 105
4.00 × 105 0.102 1.46 × 105
5.00 × 105 0.128 1.82 × 105
6.00 × 105 0.153 2.18 × 105
7.00 × 105 0.179 2.55 × 105
8.00 × 105 0.204 2.91 × 105
8.16 × 105 0.208 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 2.78 × 10-4 99.0
70.0 2.86 × 10-4 102
80.0 3.27 × 10-4 117
90.0 3.68 × 10-4 131
100 4.09 × 10-4 146
200 8.17 × 10-4 291
300 0.00123 437
400 0.00163 583
500 0.00204 728
600 0.00245 874
700 0.00286 1020
800 0.00327 1170
900 0.00368 1310
1000 0.00409 1460
2000 0.00817 2910
3000 0.0123 4370
4000 0.0163 5830
5000 0.0204 7280
6000 0.0245 8740
7000 0.0286 1.02 × 104
8000 0.0327 1.17 × 104
9000 0.0368 1.31 × 104
1.00 × 104 0.0409 1.46 × 104
2.00 × 104 0.0817 2.91 × 104
3.00 × 104 0.123 4.37 × 104
4.00 × 104 0.163 5.83 × 104
5.00 × 104 0.204 7.28 × 104
6.00 × 104 0.245 8.74 × 104
7.00 × 104 0.286 1.02 × 105
8.00 × 104 0.327 1.17 × 105
9.00 × 104 0.368 1.31 × 105
1.00 × 105 0.409 1.46 × 105
2.00 × 105 0.817 2.91 × 105
2.04 × 105 0.834 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.00141 223
70.0 0.00145 229
80.0 0.00166 262
90.0 0.00186 295
100 0.00207 328
200 0.00414 655
300 0.00621 983
400 0.00828 1310
500 0.0103 1640
600 0.0124 1970
700 0.0145 2290
800 0.0166 2620
900 0.0186 2950
1000 0.0207 3280
2000 0.0414 6550
3000 0.0621 9830
4000 0.0828 1.31 × 104
5000 0.103 1.64 × 104
6000 0.124 1.97 × 104
7000 0.145 2.29 × 104
8000 0.166 2.62 × 104
9000 0.186 2.95 × 104
1.00 × 104 0.207 3.28 × 104
2.00 × 104 0.414 6.55 × 104
3.00 × 104 0.621 9.83 × 104
4.00 × 104 0.828 1.31 × 105
5.00 × 104 1.03 1.64 × 105
6.00 × 104 1.24 1.97 × 105
7.00 × 104 1.45 2.29 × 105
8.00 × 104 1.66 2.62 × 105
9.00 × 104 1.86 2.95 × 105
9.06 × 104 1.88 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.00445 396
70.0 0.00458 408
80.0 0.00523 466
90.0 0.00589 524
100 0.00654 583
200 0.0131 1170
300 0.0196 1750
400 0.0262 2330
500 0.0327 2910
600 0.0392 3500
700 0.0458 4080
800 0.0523 4660
900 0.0589 5240
1000 0.0654 5830
2000 0.131 1.17 × 104
3000 0.196 1.75 × 104
4000 0.262 2.33 × 104
5000 0.327 2.91 × 104
6000 0.392 3.50 × 104
7000 0.458 4.08 × 104
8000 0.523 4.66 × 104
9000 0.589 5.24 × 104
1.00 × 104 0.654 5.83 × 104
2.00 × 104 1.31 1.17 × 105
3.00 × 104 1.96 1.75 × 105
4.00 × 104 2.62 2.33 × 105
5.00 × 104 3.27 2.91 × 105
5.10 × 104 3.33 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.0109 619
70.0 0.0112 637
80.0 0.0128 728
90.0 0.0144 819
100 0.0160 910
200 0.0319 1820
300 0.0479 2730
400 0.0639 3640
500 0.0798 4550
600 0.0958 5460
700 0.112 6370
800 0.128 7280
900 0.144 8190
1000 0.160 9100
2000 0.319 1.82 × 104
3000 0.479 2.73 × 104
4000 0.639 3.64 × 104
5000 0.798 4.55 × 104
6000 0.958 5.46 × 104
7000 1.12 6.37 × 104
8000 1.28 7.28 × 104
9000 1.44 8.19 × 104
1.00 × 104 1.60 9.10 × 104
2.00 × 104 3.19 1.82 × 105
3.00 × 104 4.79 2.73 × 105
3.26 × 104 5.21 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.0225 891
70.0 0.0232 918
80.0 0.0265 1050
90.0 0.0298 1180
100 0.0331 1310
200 0.0662 2620
300 0.0993 3930
400 0.132 5240
500 0.166 6550
600 0.199 7860
700 0.232 9180
800 0.265 1.05 × 104
900 0.298 1.18 × 104
1000 0.331 1.31 × 104
2000 0.662 2.62 × 104
3000 0.993 3.93 × 104
4000 1.32 5.24 × 104
5000 1.66 6.55 × 104
6000 1.99 7.86 × 104
7000 2.32 9.18 × 104
8000 2.65 1.05 × 105
9000 2.98 1.18 × 105
1.00 × 104 3.31 1.31 × 105
2.00 × 104 6.62 2.62 × 105
2.27 × 104 7.50 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.0711 1580
70.0 0.0732 1630
80.0 0.0837 1860
90.0 0.0942 2100
100 0.105 2330
200 0.209 4660
300 0.314 6990
400 0.419 9320
500 0.523 1.17 × 104
600 0.628 1.40 × 104
700 0.732 1.63 × 104
800 0.837 1.86 × 104
900 0.942 2.10 × 104
1000 1.05 2.33 × 104
2000 2.09 4.66 × 104
3000 3.14 6.99 × 104
4000 4.19 9.32 × 104
5000 5.23 1.17 × 105
6000 6.28 1.40 × 105
7000 7.32 1.63 × 105
8000 8.37 1.86 × 105
9000 9.42 2.10 × 105
1.00 × 104 10.5 2.33 × 105
1.27 × 104 13.3 2.97 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.174 2480
70.0 0.179 2550
80.0 0.204 2910
90.0 0.230 3280
100 0.255 3640
200 0.511 7280
300 0.766 1.09 × 104
400 1.02 1.46 × 104
500 1.28 1.82 × 104
600 1.53 2.18 × 104
700 1.79 2.55 × 104
800 2.04 2.91 × 104
900 2.30 3.28 × 104
1000 2.55 3.64 × 104
2000 5.11 7.28 × 104
3000 7.66 1.09 × 105
4000 10.2 1.46 × 105
5000 12.8 1.82 × 105
5500 14.0 2.00 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.360 3570
70.0 0.371 3670
80.0 0.424 4190
90.0 0.477 4720
100 0.530 5240
200 1.06 1.05 × 104
300 1.59 1.57 × 104
400 2.12 2.10 × 104
500 2.65 2.62 × 104
600 3.18 3.15 × 104
700 3.71 3.67 × 104
800 4.24 4.19 × 104
900 4.77 4.72 × 104
1000 5.30 5.24 × 104
2000 10.6 1.05 × 105
2650 14.0 1.39 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.667 4850
70.0 0.687 5000
80.0 0.785 5710
90.0 0.883 6420
100 0.981 7140
200 1.96 1.43 × 104
300 2.94 2.14 × 104
400 3.93 2.85 × 104
500 4.91 3.57 × 104
600 5.89 4.28 × 104
700 6.87 5.00 × 104
800 7.85 5.71 × 104
900 8.83 6.42 × 104
1000 9.81 7.14 × 104
1430 14.0 1.02 × 105
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 1.14 6340
70.0 1.17 6520
80.0 1.34 7460
90.0 1.51 8390
100 1.67 9320
200 3.35 1.86 × 104
300 5.02 2.80 × 104
400 6.70 3.73 × 104
500 8.37 4.66 × 104
600 10.0 5.59 × 104
700 11.7 6.52 × 104
800 13.4 7.46 × 104
839 14.0 7.82 × 104
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 1.82 8020
70.0 1.88 8260
80.0 2.15 9440
90.0 2.41 1.06 × 104
100 2.68 1.18 × 104
200 5.36 2.36 × 104
300 8.04 3.54 × 104
400 10.7 4.72 × 104
500 13.4 5.90 × 104
524 14.0 6.18 × 104
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 2.78 9900
70.0 2.86 1.02 × 104
80.0 3.27 1.17 × 104
90.0 3.68 1.31 × 104
100 4.09 1.46 × 104
200 8.17 2.91 × 104
300 12.3 4.37 × 104
344 14.0 5.00 × 104
Steel I Beam: W14 × 68 (Wide Flange 14 inch tall × 68 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 6.79 1.55 × 104
70.0 6.98 1.59 × 104
80.0 7.98 1.82 × 104
90.0 8.98 2.05 × 104
100 9.98 2.28 × 104
141 14.0 3.20 × 104
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