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Wide Flange Steel I Beam: W14 × 61
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W14 × 61
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in three equal spans, we compute the displacement at the middle of the first and the third spans, and the maximum normal stress stress_max occuring at the second and third supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 640 in4) for the W14 × 61 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 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 2.98 × 10-6 7.15
70.0 3.42 × 10-6 8.20
80.0 3.91 × 10-6 9.38
90.0 4.39 × 10-6 10.5
100 4.88 × 10-6 11.7
200 9.77 × 10-6 23.4
300 1.46 × 10-5 35.2
400 1.95 × 10-5 46.9
500 2.44 × 10-5 58.6
600 2.93 × 10-5 70.3
700 3.42 × 10-5 82.0
800 3.91 × 10-5 93.8
900 4.39 × 10-5 105
1000 4.88 × 10-5 117
2000 9.77 × 10-5 234
3000 1.46 × 10-4 352
4000 1.95 × 10-4 469
5000 2.44 × 10-4 586
6000 2.93 × 10-4 703
7000 3.42 × 10-4 820
8000 3.91 × 10-4 938
9000 4.39 × 10-4 1050
1.00 × 104 4.88 × 10-4 1170
2.00 × 104 9.77 × 10-4 2340
3.00 × 104 0.00146 3520
4.00 × 104 0.00195 4690
5.00 × 104 0.00244 5860
6.00 × 104 0.00293 7030
7.00 × 104 0.00342 8200
8.00 × 104 0.00391 9380
9.00 × 104 0.00439 1.05 × 104
1.00 × 105 0.00488 1.17 × 104
2.00 × 105 0.00977 2.34 × 104
3.00 × 105 0.0146 3.52 × 104
4.00 × 105 0.0195 4.69 × 104
5.00 × 105 0.0244 5.86 × 104
6.00 × 105 0.0293 7.03 × 104
7.00 × 105 0.0342 8.20 × 104
8.00 × 105 0.0391 9.38 × 104
9.00 × 105 0.0439 1.05 × 105
1.00 × 106 0.0488 1.17 × 105
2.00 × 106 0.0977 2.34 × 105
2.53 × 106 0.124 2.97 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 2.30 × 10-5 19.9
70.0 2.64 × 10-5 22.8
80.0 3.01 × 10-5 26.0
90.0 3.39 × 10-5 29.3
100 3.77 × 10-5 32.6
200 7.53 × 10-5 65.1
300 1.13 × 10-4 97.7
400 1.51 × 10-4 130
500 1.88 × 10-4 163
600 2.26 × 10-4 195
700 2.64 × 10-4 228
800 3.01 × 10-4 260
900 3.39 × 10-4 293
1000 3.77 × 10-4 326
2000 7.53 × 10-4 651
3000 0.00113 977
4000 0.00151 1300
5000 0.00188 1630
6000 0.00226 1950
7000 0.00264 2280
8000 0.00301 2600
9000 0.00339 2930
1.00 × 104 0.00377 3260
2.00 × 104 0.00753 6510
3.00 × 104 0.0113 9770
4.00 × 104 0.0151 1.30 × 104
5.00 × 104 0.0188 1.63 × 104
6.00 × 104 0.0226 1.95 × 104
7.00 × 104 0.0264 2.28 × 104
8.00 × 104 0.0301 2.60 × 104
9.00 × 104 0.0339 2.93 × 104
1.00 × 105 0.0377 3.26 × 104
2.00 × 105 0.0753 6.51 × 104
3.00 × 105 0.113 9.77 × 104
4.00 × 105 0.151 1.30 × 105
5.00 × 105 0.188 1.63 × 105
6.00 × 105 0.226 1.95 × 105
7.00 × 105 0.264 2.28 × 105
8.00 × 105 0.301 2.60 × 105
9.00 × 105 0.339 2.93 × 105
9.12 × 105 0.344 2.97 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 3.68 × 10-4 79.4
70.0 4.22 × 10-4 91.2
80.0 4.82 × 10-4 104
90.0 5.43 × 10-4 117
100 6.03 × 10-4 130
200 0.00121 260
300 0.00181 391
400 0.00241 521
500 0.00301 651
600 0.00362 781
700 0.00422 912
800 0.00482 1040
900 0.00543 1170
1000 0.00603 1300
2000 0.0121 2600
3000 0.0181 3910
4000 0.0241 5210
5000 0.0301 6510
6000 0.0362 7810
7000 0.0422 9120
8000 0.0482 1.04 × 104
9000 0.0543 1.17 × 104
1.00 × 104 0.0603 1.30 × 104
2.00 × 104 0.121 2.60 × 104
3.00 × 104 0.181 3.91 × 104
4.00 × 104 0.241 5.21 × 104
5.00 × 104 0.301 6.51 × 104
6.00 × 104 0.362 7.81 × 104
7.00 × 104 0.422 9.12 × 104
8.00 × 104 0.482 1.04 × 105
9.00 × 104 0.543 1.17 × 105
1.00 × 105 0.603 1.30 × 105
2.00 × 105 1.21 2.60 × 105
2.28 × 105 1.38 2.97 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.00186 179
70.0 0.00214 205
80.0 0.00244 234
90.0 0.00275 264
100 0.00305 293
200 0.00610 586
300 0.00915 879
400 0.0122 1170
500 0.0153 1460
600 0.0183 1760
700 0.0214 2050
800 0.0244 2340
900 0.0275 2640
1000 0.0305 2930
2000 0.0610 5860
3000 0.0915 8790
4000 0.122 1.17 × 104
5000 0.153 1.46 × 104
6000 0.183 1.76 × 104
7000 0.214 2.05 × 104
8000 0.244 2.34 × 104
9000 0.275 2.64 × 104
1.00 × 104 0.305 2.93 × 104
2.00 × 104 0.610 5.86 × 104
3.00 × 104 0.915 8.79 × 104
4.00 × 104 1.22 1.17 × 105
5.00 × 104 1.53 1.46 × 105
6.00 × 104 1.83 1.76 × 105
7.00 × 104 2.14 2.05 × 105
8.00 × 104 2.44 2.34 × 105
9.00 × 104 2.75 2.64 × 105
1.00 × 105 3.05 2.93 × 105
1.01 × 105 3.09 2.97 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.00588 318
70.0 0.00675 365
80.0 0.00772 417
90.0 0.00868 469
100 0.00964 521
200 0.0193 1040
300 0.0289 1560
400 0.0386 2080
500 0.0482 2600
600 0.0579 3130
700 0.0675 3650
800 0.0772 4170
900 0.0868 4690
1000 0.0964 5210
2000 0.193 1.04 × 104
3000 0.289 1.56 × 104
4000 0.386 2.08 × 104
5000 0.482 2.60 × 104
6000 0.579 3.13 × 104
7000 0.675 3.65 × 104
8000 0.772 4.17 × 104
9000 0.868 4.69 × 104
1.00 × 104 0.964 5.21 × 104
2.00 × 104 1.93 1.04 × 105
3.00 × 104 2.89 1.56 × 105
4.00 × 104 3.86 2.08 × 105
5.00 × 104 4.82 2.60 × 105
5.70 × 104 5.50 2.97 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.0144 496
70.0 0.0165 570
80.0 0.0188 651
90.0 0.0212 732
100 0.0235 814
200 0.0471 1630
300 0.0706 2440
400 0.0942 3260
500 0.118 4070
600 0.141 4880
700 0.165 5700
800 0.188 6510
900 0.212 7320
1000 0.235 8140
2000 0.471 1.63 × 104
3000 0.706 2.44 × 104
4000 0.942 3.26 × 104
5000 1.18 4.07 × 104
6000 1.41 4.88 × 104
7000 1.65 5.70 × 104
8000 1.88 6.51 × 104
9000 2.12 7.32 × 104
1.00 × 104 2.35 8.14 × 104
2.00 × 104 4.71 1.63 × 105
3.00 × 104 7.06 2.44 × 105
3.65 × 104 8.59 2.97 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.0298 715
70.0 0.0342 820
80.0 0.0391 938
90.0 0.0439 1050
100 0.0488 1170
200 0.0977 2340
300 0.146 3520
400 0.195 4690
500 0.244 5860
600 0.293 7030
700 0.342 8200
800 0.391 9380
900 0.439 1.05 × 104
1000 0.488 1.17 × 104
2000 0.977 2.34 × 104
3000 1.46 3.52 × 104
4000 1.95 4.69 × 104
5000 2.44 5.86 × 104
6000 2.93 7.03 × 104
7000 3.42 8.20 × 104
8000 3.91 9.38 × 104
9000 4.39 1.05 × 105
1.00 × 104 4.88 1.17 × 105
2.00 × 104 9.77 2.34 × 105
2.53 × 104 12.4 2.97 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.0941 1270
70.0 0.108 1460
80.0 0.123 1670
90.0 0.139 1880
100 0.154 2080
200 0.309 4170
300 0.463 6250
400 0.617 8330
500 0.772 1.04 × 104
600 0.926 1.25 × 104
700 1.08 1.46 × 104
800 1.23 1.67 × 104
900 1.39 1.88 × 104
1000 1.54 2.08 × 104
2000 3.09 4.17 × 104
3000 4.63 6.25 × 104
4000 6.17 8.33 × 104
5000 7.72 1.04 × 105
6000 9.26 1.25 × 105
7000 10.8 1.46 × 105
8000 12.3 1.67 × 105
9000 13.9 1.88 × 105
9000 13.9 1.88 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.230 1990
70.0 0.264 2280
80.0 0.301 2600
90.0 0.339 2930
100 0.377 3260
200 0.753 6510
300 1.13 9770
400 1.51 1.30 × 104
500 1.88 1.63 × 104
600 2.26 1.95 × 104
700 2.64 2.28 × 104
800 3.01 2.60 × 104
900 3.39 2.93 × 104
1000 3.77 3.26 × 104
2000 7.53 6.51 × 104
3000 11.3 9.77 × 104
3690 13.9 1.20 × 105
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.477 2860
70.0 0.547 3280
80.0 0.625 3750
90.0 0.703 4220
100 0.781 4690
200 1.56 9380
300 2.34 1.41 × 104
400 3.12 1.88 × 104
500 3.91 2.34 × 104
600 4.69 2.81 × 104
700 5.47 3.28 × 104
800 6.25 3.75 × 104
900 7.03 4.22 × 104
1000 7.81 4.69 × 104
1780 13.9 8.33 × 104
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 0.883 3890
70.0 1.01 4470
80.0 1.16 5100
90.0 1.30 5740
100 1.45 6380
200 2.89 1.28 × 104
300 4.34 1.91 × 104
400 5.79 2.55 × 104
500 7.24 3.19 × 104
600 8.68 3.83 × 104
700 10.1 4.47 × 104
800 11.6 5.10 × 104
900 13.0 5.74 × 104
960 13.9 6.12 × 104
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 1.51 5080
70.0 1.73 5830
80.0 1.98 6670
90.0 2.22 7500
100 2.47 8330
200 4.94 1.67 × 104
300 7.41 2.50 × 104
400 9.88 3.33 × 104
500 12.3 4.17 × 104
563 13.9 4.69 × 104
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 2.41 6430
70.0 2.77 7380
80.0 3.16 8440
90.0 3.56 9490
100 3.95 1.05 × 104
200 7.91 2.11 × 104
300 11.9 3.16 × 104
351 13.9 3.70 × 104
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 3.68 7940
70.0 4.22 9120
80.0 4.82 1.04 × 104
90.0 5.43 1.17 × 104
100 6.03 1.30 × 104
200 12.1 2.60 × 104
230 13.9 3.00 × 104
Steel I Beam: W14 × 61 (Wide Flange 14 inch tall × 61 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
61.0 8.98 1.24 × 104
70.0 10.3 1.42 × 104
80.0 11.8 1.63 × 104
90.0 13.2 1.83 × 104
94.4 13.9 1.92 × 104
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