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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Wide Flange Steel I Beam » W10 × 17
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress stress_max occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 81.9 in4) for the W10 × 17 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: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 6.01 × 10-6 12.1
20.0 7.07 × 10-6 14.3
30.0 1.06 × 10-5 21.4
40.0 1.41 × 10-5 28.6
50.0 1.77 × 10-5 35.7
60.0 2.12 × 10-5 42.8
70.0 2.47 × 10-5 50.0
80.0 2.83 × 10-5 57.1
90.0 3.18 × 10-5 64.3
100 3.53 × 10-5 71.4
200 7.07 × 10-5 143
300 1.06 × 10-4 214
400 1.41 × 10-4 286
500 1.77 × 10-4 357
600 2.12 × 10-4 428
700 2.47 × 10-4 500
800 2.83 × 10-4 571
900 3.18 × 10-4 643
1000 3.53 × 10-4 714
2000 7.07 × 10-4 1430
3000 0.00106 2140
4000 0.00141 2860
5000 0.00177 3570
6000 0.00212 4280
7000 0.00247 5000
8000 0.00283 5710
9000 0.00318 6430
1.00 × 104 0.00353 7140
2.00 × 104 0.00707 1.43 × 104
3.00 × 104 0.0106 2.14 × 104
4.00 × 104 0.0141 2.86 × 104
5.00 × 104 0.0177 3.57 × 104
6.00 × 104 0.0212 4.28 × 104
7.00 × 104 0.0247 5.00 × 104
8.00 × 104 0.0283 5.71 × 104
9.00 × 104 0.0318 6.43 × 104
1.00 × 105 0.0353 7.14 × 104
2.00 × 105 0.0707 1.43 × 105
3.00 × 105 0.106 2.14 × 105
4.00 × 105 0.141 2.86 × 105
4.16 × 105 0.147 2.97 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 4.64 × 10-5 33.7
20.0 5.46 × 10-5 39.7
30.0 8.18 × 10-5 59.5
40.0 1.09 × 10-4 79.3
50.0 1.36 × 10-4 99.2
60.0 1.64 × 10-4 119
70.0 1.91 × 10-4 139
80.0 2.18 × 10-4 159
90.0 2.45 × 10-4 178
100 2.73 × 10-4 198
200 5.46 × 10-4 397
300 8.18 × 10-4 595
400 0.00109 793
500 0.00136 992
600 0.00164 1190
700 0.00191 1390
800 0.00218 1590
900 0.00245 1780
1000 0.00273 1980
2000 0.00546 3970
3000 0.00818 5950
4000 0.0109 7930
5000 0.0136 9920
6000 0.0164 1.19 × 104
7000 0.0191 1.39 × 104
8000 0.0218 1.59 × 104
9000 0.0245 1.78 × 104
1.00 × 104 0.0273 1.98 × 104
2.00 × 104 0.0546 3.97 × 104
3.00 × 104 0.0818 5.95 × 104
4.00 × 104 0.109 7.93 × 104
5.00 × 104 0.136 9.92 × 104
6.00 × 104 0.164 1.19 × 105
7.00 × 104 0.191 1.39 × 105
8.00 × 104 0.218 1.59 × 105
9.00 × 104 0.245 1.78 × 105
1.00 × 105 0.273 1.98 × 105
1.50 × 105 0.409 2.97 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 7.42 × 10-4 135
20.0 8.73 × 10-4 159
30.0 0.00131 238
40.0 0.00175 317
50.0 0.00218 397
60.0 0.00262 476
70.0 0.00305 555
80.0 0.00349 635
90.0 0.00393 714
100 0.00436 793
200 0.00873 1590
300 0.0131 2380
400 0.0175 3170
500 0.0218 3970
600 0.0262 4760
700 0.0305 5550
800 0.0349 6350
900 0.0393 7140
1000 0.0436 7930
2000 0.0873 1.59 × 104
3000 0.131 2.38 × 104
4000 0.175 3.17 × 104
5000 0.218 3.97 × 104
6000 0.262 4.76 × 104
7000 0.305 5.55 × 104
8000 0.349 6.35 × 104
9000 0.393 7.14 × 104
1.00 × 104 0.436 7.93 × 104
2.00 × 104 0.873 1.59 × 105
3.00 × 104 1.31 2.38 × 105
3.74 × 104 1.63 2.97 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 0.00376 303
20.0 0.00442 357
30.0 0.00663 535
40.0 0.00884 714
50.0 0.0110 892
60.0 0.0133 1070
70.0 0.0155 1250
80.0 0.0177 1430
90.0 0.0199 1610
100 0.0221 1780
200 0.0442 3570
300 0.0663 5350
400 0.0884 7140
500 0.110 8920
600 0.133 1.07 × 104
700 0.155 1.25 × 104
800 0.177 1.43 × 104
900 0.199 1.61 × 104
1000 0.221 1.78 × 104
2000 0.442 3.57 × 104
3000 0.663 5.35 × 104
4000 0.884 7.14 × 104
5000 1.10 8.92 × 104
6000 1.33 1.07 × 105
7000 1.55 1.25 × 105
8000 1.77 1.43 × 105
9000 1.99 1.61 × 105
1.00 × 104 2.21 1.78 × 105
1.66 × 104 3.68 2.97 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 0.0119 539
20.0 0.0140 635
30.0 0.0209 952
40.0 0.0279 1270
50.0 0.0349 1590
60.0 0.0419 1900
70.0 0.0489 2220
80.0 0.0559 2540
90.0 0.0628 2860
100 0.0698 3170
200 0.140 6350
300 0.209 9520
400 0.279 1.27 × 104
500 0.349 1.59 × 104
600 0.419 1.90 × 104
700 0.489 2.22 × 104
800 0.559 2.54 × 104
900 0.628 2.86 × 104
1000 0.698 3.17 × 104
2000 1.40 6.35 × 104
3000 2.09 9.52 × 104
4000 2.79 1.27 × 105
5000 3.49 1.59 × 105
6000 4.19 1.90 × 105
7000 4.89 2.22 × 105
8000 5.59 2.54 × 105
9000 6.28 2.86 × 105
9360 6.54 2.97 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 0.0290 843
20.0 0.0341 992
30.0 0.0511 1490
40.0 0.0682 1980
50.0 0.0852 2480
60.0 0.102 2970
70.0 0.119 3470
80.0 0.136 3970
90.0 0.153 4460
100 0.170 4960
200 0.341 9920
300 0.511 1.49 × 104
400 0.682 1.98 × 104
500 0.852 2.48 × 104
600 1.02 2.97 × 104
700 1.19 3.47 × 104
800 1.36 3.97 × 104
900 1.53 4.46 × 104
1000 1.70 4.96 × 104
2000 3.41 9.92 × 104
3000 5.11 1.49 × 105
4000 6.82 1.98 × 105
5000 8.52 2.48 × 105
5990 10.2 2.97 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 0.0601 1210
20.0 0.0707 1430
30.0 0.106 2140
40.0 0.141 2860
50.0 0.177 3570
60.0 0.212 4280
70.0 0.247 5000
80.0 0.283 5710
90.0 0.318 6430
100 0.353 7140
200 0.707 1.43 × 104
300 1.06 2.14 × 104
400 1.41 2.86 × 104
500 1.77 3.57 × 104
600 2.12 4.28 × 104
700 2.47 5.00 × 104
800 2.83 5.71 × 104
900 3.18 6.43 × 104
1000 3.53 7.14 × 104
2000 7.07 1.43 × 105
2860 10.1 2.04 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 0.190 2160
20.0 0.223 2540
30.0 0.335 3810
40.0 0.447 5080
50.0 0.559 6350
60.0 0.670 7620
70.0 0.782 8880
80.0 0.894 1.02 × 104
90.0 1.01 1.14 × 104
100 1.12 1.27 × 104
200 2.23 2.54 × 104
300 3.35 3.81 × 104
400 4.47 5.08 × 104
500 5.59 6.35 × 104
600 6.70 7.62 × 104
700 7.82 8.88 × 104
800 8.94 1.02 × 105
900 10.1 1.14 × 105
905 10.1 1.15 × 105
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 0.464 3370
20.0 0.546 3970
30.0 0.818 5950
40.0 1.09 7930
50.0 1.36 9920
60.0 1.64 1.19 × 104
70.0 1.91 1.39 × 104
80.0 2.18 1.59 × 104
90.0 2.45 1.78 × 104
100 2.73 1.98 × 104
200 5.46 3.97 × 104
300 8.18 5.95 × 104
371 10.1 7.35 × 104
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 0.962 4850
20.0 1.13 5710
30.0 1.70 8570
40.0 2.26 1.14 × 104
50.0 2.83 1.43 × 104
60.0 3.39 1.71 × 104
70.0 3.96 2.00 × 104
80.0 4.52 2.28 × 104
90.0 5.09 2.57 × 104
100 5.66 2.86 × 104
179 10.1 5.10 × 104
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 1.78 6610
20.0 2.10 7770
30.0 3.14 1.17 × 104
40.0 4.19 1.55 × 104
50.0 5.24 1.94 × 104
60.0 6.29 2.33 × 104
70.0 7.33 2.72 × 104
80.0 8.38 3.11 × 104
90.0 9.43 3.50 × 104
96.5 10.1 3.75 × 104
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 3.04 8630
20.0 3.58 1.02 × 104
30.0 5.36 1.52 × 104
40.0 7.15 2.03 × 104
50.0 8.94 2.54 × 104
56.6 10.1 2.87 × 104
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 4.87 1.09 × 104
20.0 5.73 1.29 × 104
30.0 8.59 1.93 × 104
35.3 10.1 2.27 × 104
Steel I Beam: W10 × 17 (Wide Flange 10 inch tall × 17 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.0 7.42 1.35 × 104
20.0 8.73 1.59 × 104
23.2 10.1 1.84 × 104
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