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Wide Flange Steel I Beam: W10 × 17
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three 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 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 = 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 6.49 × 10-6 11.3
20.0 7.63 × 10-6 13.3
30.0 1.14 × 10-5 20.0
40.0 1.53 × 10-5 26.7
50.0 1.91 × 10-5 33.3
60.0 2.29 × 10-5 40.0
70.0 2.67 × 10-5 46.7
80.0 3.05 × 10-5 53.3
90.0 3.43 × 10-5 60.0
100 3.82 × 10-5 66.7
200 7.63 × 10-5 133
300 1.14 × 10-4 200
400 1.53 × 10-4 267
500 1.91 × 10-4 333
600 2.29 × 10-4 400
700 2.67 × 10-4 467
800 3.05 × 10-4 533
900 3.43 × 10-4 600
1000 3.82 × 10-4 667
2000 7.63 × 10-4 1330
3000 0.00114 2000
4000 0.00153 2670
5000 0.00191 3330
6000 0.00229 4000
7000 0.00267 4670
8000 0.00305 5330
9000 0.00343 6000
1.00 × 104 0.00382 6670
2.00 × 104 0.00763 1.33 × 104
3.00 × 104 0.0114 2.00 × 104
4.00 × 104 0.0153 2.67 × 104
5.00 × 104 0.0191 3.33 × 104
6.00 × 104 0.0229 4.00 × 104
7.00 × 104 0.0267 4.67 × 104
8.00 × 104 0.0305 5.33 × 104
9.00 × 104 0.0343 6.00 × 104
1.00 × 105 0.0382 6.67 × 104
2.00 × 105 0.0763 1.33 × 105
3.00 × 105 0.114 2.00 × 105
4.00 × 105 0.153 2.67 × 105
4.46 × 105 0.170 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 5.00 × 10-5 31.5
20.0 5.89 × 10-5 37.0
30.0 8.83 × 10-5 55.5
40.0 1.18 × 10-4 74.1
50.0 1.47 × 10-4 92.6
60.0 1.77 × 10-4 111
70.0 2.06 × 10-4 130
80.0 2.36 × 10-4 148
90.0 2.65 × 10-4 167
100 2.94 × 10-4 185
200 5.89 × 10-4 370
300 8.83 × 10-4 555
400 0.00118 741
500 0.00147 926
600 0.00177 1110
700 0.00206 1300
800 0.00236 1480
900 0.00265 1670
1000 0.00294 1850
2000 0.00589 3700
3000 0.00883 5550
4000 0.0118 7410
5000 0.0147 9260
6000 0.0177 1.11 × 104
7000 0.0206 1.30 × 104
8000 0.0236 1.48 × 104
9000 0.0265 1.67 × 104
1.00 × 104 0.0294 1.85 × 104
2.00 × 104 0.0589 3.70 × 104
3.00 × 104 0.0883 5.55 × 104
4.00 × 104 0.118 7.41 × 104
5.00 × 104 0.147 9.26 × 104
6.00 × 104 0.177 1.11 × 105
7.00 × 104 0.206 1.30 × 105
8.00 × 104 0.236 1.48 × 105
9.00 × 104 0.265 1.67 × 105
1.00 × 105 0.294 1.85 × 105
1.60 × 105 0.472 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 8.01 × 10-4 126
20.0 9.42 × 10-4 148
30.0 0.00141 222
40.0 0.00188 296
50.0 0.00236 370
60.0 0.00283 444
70.0 0.00330 518
80.0 0.00377 593
90.0 0.00424 667
100 0.00471 741
200 0.00942 1480
300 0.0141 2220
400 0.0188 2960
500 0.0236 3700
600 0.0283 4440
700 0.0330 5180
800 0.0377 5930
900 0.0424 6670
1000 0.0471 7410
2000 0.0942 1.48 × 104
3000 0.141 2.22 × 104
4000 0.188 2.96 × 104
5000 0.236 3.70 × 104
6000 0.283 4.44 × 104
7000 0.330 5.18 × 104
8000 0.377 5.93 × 104
9000 0.424 6.67 × 104
1.00 × 104 0.471 7.41 × 104
2.00 × 104 0.942 1.48 × 105
3.00 × 104 1.41 2.22 × 105
4.00 × 104 1.88 2.96 × 105
4.01 × 104 1.89 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 0.00405 283
20.0 0.00477 333
30.0 0.00715 500
40.0 0.00954 667
50.0 0.0119 833
60.0 0.0143 1000
70.0 0.0167 1170
80.0 0.0191 1330
90.0 0.0215 1500
100 0.0238 1670
200 0.0477 3330
300 0.0715 5000
400 0.0954 6670
500 0.119 8330
600 0.143 10000
700 0.167 1.17 × 104
800 0.191 1.33 × 104
900 0.215 1.50 × 104
1000 0.238 1.67 × 104
2000 0.477 3.33 × 104
3000 0.715 5.00 × 104
4000 0.954 6.67 × 104
5000 1.19 8.33 × 104
6000 1.43 1.00 × 105
7000 1.67 1.17 × 105
8000 1.91 1.33 × 105
9000 2.15 1.50 × 105
1.00 × 104 2.38 1.67 × 105
1.78 × 104 4.25 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 0.0128 504
20.0 0.0151 593
30.0 0.0226 889
40.0 0.0301 1190
50.0 0.0377 1480
60.0 0.0452 1780
70.0 0.0528 2070
80.0 0.0603 2370
90.0 0.0678 2670
100 0.0754 2960
200 0.151 5930
300 0.226 8890
400 0.301 1.19 × 104
500 0.377 1.48 × 104
600 0.452 1.78 × 104
700 0.528 2.07 × 104
800 0.603 2.37 × 104
900 0.678 2.67 × 104
1000 0.754 2.96 × 104
2000 1.51 5.93 × 104
3000 2.26 8.89 × 104
4000 3.01 1.19 × 105
5000 3.77 1.48 × 105
6000 4.52 1.78 × 105
7000 5.28 2.07 × 105
8000 6.03 2.37 × 105
9000 6.78 2.67 × 105
1.00 × 104 7.54 2.96 × 105
1.00 × 104 7.56 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 0.0313 787
20.0 0.0368 926
30.0 0.0552 1390
40.0 0.0736 1850
50.0 0.0920 2310
60.0 0.110 2780
70.0 0.129 3240
80.0 0.147 3700
90.0 0.166 4170
100 0.184 4630
200 0.368 9260
300 0.552 1.39 × 104
400 0.736 1.85 × 104
500 0.920 2.31 × 104
600 1.10 2.78 × 104
700 1.29 3.24 × 104
800 1.47 3.70 × 104
900 1.66 4.17 × 104
1000 1.84 4.63 × 104
2000 3.68 9.26 × 104
3000 5.52 1.39 × 105
4000 7.36 1.85 × 105
5000 9.20 2.31 × 105
5490 10.1 2.54 × 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 0.0649 1130
20.0 0.0763 1330
30.0 0.114 2000
40.0 0.153 2670
50.0 0.191 3330
60.0 0.229 4000
70.0 0.267 4670
80.0 0.305 5330
90.0 0.343 6000
100 0.382 6670
200 0.763 1.33 × 104
300 1.14 2.00 × 104
400 1.53 2.67 × 104
500 1.91 3.33 × 104
600 2.29 4.00 × 104
700 2.67 4.67 × 104
800 3.05 5.33 × 104
900 3.43 6.00 × 104
1000 3.82 6.67 × 104
2000 7.63 1.33 × 105
2650 10.1 1.77 × 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 0.205 2010
20.0 0.241 2370
30.0 0.362 3560
40.0 0.482 4740
50.0 0.603 5930
60.0 0.724 7110
70.0 0.844 8300
80.0 0.965 9480
90.0 1.09 1.07 × 104
100 1.21 1.19 × 104
200 2.41 2.37 × 104
300 3.62 3.56 × 104
400 4.82 4.74 × 104
500 6.03 5.93 × 104
600 7.24 7.11 × 104
700 8.44 8.30 × 104
800 9.65 9.48 × 104
838 10.1 9.94 × 104
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 0.500 3150
20.0 0.589 3700
30.0 0.883 5550
40.0 1.18 7410
50.0 1.47 9260
60.0 1.77 1.11 × 104
70.0 2.06 1.30 × 104
80.0 2.36 1.48 × 104
90.0 2.65 1.67 × 104
100 2.94 1.85 × 104
200 5.89 3.70 × 104
300 8.83 5.55 × 104
343 10.1 6.36 × 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 1.04 4530
20.0 1.22 5330
30.0 1.83 8000
40.0 2.44 1.07 × 104
50.0 3.05 1.33 × 104
60.0 3.66 1.60 × 104
70.0 4.27 1.87 × 104
80.0 4.88 2.13 × 104
90.0 5.49 2.40 × 104
100 6.10 2.67 × 104
166 10.1 4.42 × 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 1.92 6170
20.0 2.26 7260
30.0 3.39 1.09 × 104
40.0 4.52 1.45 × 104
50.0 5.65 1.81 × 104
60.0 6.79 2.18 × 104
70.0 7.92 2.54 × 104
80.0 9.05 2.90 × 104
89.4 10.1 3.24 × 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 3.28 8060
20.0 3.86 9480
30.0 5.79 1.42 × 104
40.0 7.72 1.90 × 104
50.0 9.65 2.37 × 104
52.4 10.1 2.48 × 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 5.25 1.02 × 104
20.0 6.18 1.20 × 104
30.0 9.27 1.80 × 104
32.7 10.1 1.96 × 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 8.01 1.26 × 104
20.0 9.42 1.48 × 104
21.5 10.1 1.59 × 104
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