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Wide Flange Steel I Beam: W10 × 39
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W10 × 39
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 = 209 in4) for the W10 × 39 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 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 4.47 × 10-6 12.5
40.0 4.58 × 10-6 12.8
50.0 5.73 × 10-6 16.0
60.0 6.87 × 10-6 19.2
70.0 8.02 × 10-6 22.4
80.0 9.16 × 10-6 25.6
90.0 1.03 × 10-5 28.8
100 1.15 × 10-5 32.0
200 2.29 × 10-5 64.1
300 3.44 × 10-5 96.1
400 4.58 × 10-5 128
500 5.73 × 10-5 160
600 6.87 × 10-5 192
700 8.02 × 10-5 224
800 9.16 × 10-5 256
900 1.03 × 10-4 288
1000 1.15 × 10-4 320
2000 2.29 × 10-4 641
3000 3.44 × 10-4 961
4000 4.58 × 10-4 1280
5000 5.73 × 10-4 1600
6000 6.87 × 10-4 1920
7000 8.02 × 10-4 2240
8000 9.16 × 10-4 2560
9000 0.00103 2880
1.00 × 104 0.00115 3200
2.00 × 104 0.00229 6410
3.00 × 104 0.00344 9610
4.00 × 104 0.00458 1.28 × 104
5.00 × 104 0.00573 1.60 × 104
6.00 × 104 0.00687 1.92 × 104
7.00 × 104 0.00802 2.24 × 104
8.00 × 104 0.00916 2.56 × 104
9.00 × 104 0.0103 2.88 × 104
1.00 × 105 0.0115 3.20 × 104
2.00 × 105 0.0229 6.41 × 104
3.00 × 105 0.0344 9.61 × 104
4.00 × 105 0.0458 1.28 × 105
5.00 × 105 0.0573 1.60 × 105
6.00 × 105 0.0687 1.92 × 105
7.00 × 105 0.0802 2.24 × 105
8.00 × 105 0.0916 2.56 × 105
9.00 × 105 0.103 2.88 × 105
9.27 × 105 0.106 2.97 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 3.45 × 10-5 34.7
40.0 3.53 × 10-5 35.6
50.0 4.42 × 10-5 44.5
60.0 5.30 × 10-5 53.4
70.0 6.19 × 10-5 62.3
80.0 7.07 × 10-5 71.2
90.0 7.95 × 10-5 80.1
100 8.84 × 10-5 89.0
200 1.77 × 10-4 178
300 2.65 × 10-4 267
400 3.53 × 10-4 356
500 4.42 × 10-4 445
600 5.30 × 10-4 534
700 6.19 × 10-4 623
800 7.07 × 10-4 712
900 7.95 × 10-4 801
1000 8.84 × 10-4 890
2000 0.00177 1780
3000 0.00265 2670
4000 0.00353 3560
5000 0.00442 4450
6000 0.00530 5340
7000 0.00619 6230
8000 0.00707 7120
9000 0.00795 8010
1.00 × 104 0.00884 8900
2.00 × 104 0.0177 1.78 × 104
3.00 × 104 0.0265 2.67 × 104
4.00 × 104 0.0353 3.56 × 104
5.00 × 104 0.0442 4.45 × 104
6.00 × 104 0.0530 5.34 × 104
7.00 × 104 0.0619 6.23 × 104
8.00 × 104 0.0707 7.12 × 104
9.00 × 104 0.0795 8.01 × 104
1.00 × 105 0.0884 8.90 × 104
2.00 × 105 0.177 1.78 × 105
3.00 × 105 0.265 2.67 × 105
3.34 × 105 0.295 2.97 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 5.51 × 10-4 139
40.0 5.66 × 10-4 142
50.0 7.07 × 10-4 178
60.0 8.48 × 10-4 214
70.0 9.90 × 10-4 249
80.0 0.00113 285
90.0 0.00127 320
100 0.00141 356
200 0.00283 712
300 0.00424 1070
400 0.00566 1420
500 0.00707 1780
600 0.00848 2140
700 0.00990 2490
800 0.0113 2850
900 0.0127 3200
1000 0.0141 3560
2000 0.0283 7120
3000 0.0424 1.07 × 104
4000 0.0566 1.42 × 104
5000 0.0707 1.78 × 104
6000 0.0848 2.14 × 104
7000 0.0990 2.49 × 104
8000 0.113 2.85 × 104
9000 0.127 3.20 × 104
1.00 × 104 0.141 3.56 × 104
2.00 × 104 0.283 7.12 × 104
3.00 × 104 0.424 1.07 × 105
4.00 × 104 0.566 1.42 × 105
5.00 × 104 0.707 1.78 × 105
6.00 × 104 0.848 2.14 × 105
7.00 × 104 0.990 2.49 × 105
8.00 × 104 1.13 2.85 × 105
8.34 × 104 1.18 2.97 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 0.00279 312
40.0 0.00286 320
50.0 0.00358 400
60.0 0.00429 481
70.0 0.00501 561
80.0 0.00573 641
90.0 0.00644 721
100 0.00716 801
200 0.0143 1600
300 0.0215 2400
400 0.0286 3200
500 0.0358 4000
600 0.0429 4810
700 0.0501 5610
800 0.0573 6410
900 0.0644 7210
1000 0.0716 8010
2000 0.143 1.60 × 104
3000 0.215 2.40 × 104
4000 0.286 3.20 × 104
5000 0.358 4.00 × 104
6000 0.429 4.81 × 104
7000 0.501 5.61 × 104
8000 0.573 6.41 × 104
9000 0.644 7.21 × 104
1.00 × 104 0.716 8.01 × 104
2.00 × 104 1.43 1.60 × 105
3.00 × 104 2.15 2.40 × 105
3.71 × 104 2.65 2.97 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 0.00882 555
40.0 0.00905 570
50.0 0.0113 712
60.0 0.0136 854
70.0 0.0158 997
80.0 0.0181 1140
90.0 0.0204 1280
100 0.0226 1420
200 0.0452 2850
300 0.0679 4270
400 0.0905 5700
500 0.113 7120
600 0.136 8540
700 0.158 9970
800 0.181 1.14 × 104
900 0.204 1.28 × 104
1000 0.226 1.42 × 104
2000 0.452 2.85 × 104
3000 0.679 4.27 × 104
4000 0.905 5.70 × 104
5000 1.13 7.12 × 104
6000 1.36 8.54 × 104
7000 1.58 9.97 × 104
8000 1.81 1.14 × 105
9000 2.04 1.28 × 105
1.00 × 104 2.26 1.42 × 105
2.00 × 104 4.52 2.85 × 105
2.09 × 104 4.72 2.97 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 0.0215 868
40.0 0.0221 890
50.0 0.0276 1110
60.0 0.0331 1330
70.0 0.0387 1560
80.0 0.0442 1780
90.0 0.0497 2000
100 0.0552 2220
200 0.110 4450
300 0.166 6670
400 0.221 8900
500 0.276 1.11 × 104
600 0.331 1.33 × 104
700 0.387 1.56 × 104
800 0.442 1.78 × 104
900 0.497 2.00 × 104
1000 0.552 2.22 × 104
2000 1.10 4.45 × 104
3000 1.66 6.67 × 104
4000 2.21 8.90 × 104
5000 2.76 1.11 × 105
6000 3.31 1.33 × 105
7000 3.87 1.56 × 105
8000 4.42 1.78 × 105
9000 4.97 2.00 × 105
1.00 × 104 5.52 2.22 × 105
1.34 × 104 7.37 2.97 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 0.0447 1250
40.0 0.0458 1280
50.0 0.0573 1600
60.0 0.0687 1920
70.0 0.0802 2240
80.0 0.0916 2560
90.0 0.103 2880
100 0.115 3200
200 0.229 6410
300 0.344 9610
400 0.458 1.28 × 104
500 0.573 1.60 × 104
600 0.687 1.92 × 104
700 0.802 2.24 × 104
800 0.916 2.56 × 104
900 1.03 2.88 × 104
1000 1.15 3.20 × 104
2000 2.29 6.41 × 104
3000 3.44 9.61 × 104
4000 4.58 1.28 × 105
5000 5.73 1.60 × 105
6000 6.87 1.92 × 105
7000 8.02 2.24 × 105
8000 9.16 2.56 × 105
8660 9.92 2.78 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 0.141 2220
40.0 0.145 2280
50.0 0.181 2850
60.0 0.217 3420
70.0 0.253 3990
80.0 0.290 4560
90.0 0.326 5130
100 0.362 5700
200 0.724 1.14 × 104
300 1.09 1.71 × 104
400 1.45 2.28 × 104
500 1.81 2.85 × 104
600 2.17 3.42 × 104
700 2.53 3.99 × 104
800 2.90 4.56 × 104
900 3.26 5.13 × 104
1000 3.62 5.70 × 104
2000 7.24 1.14 × 105
2740 9.92 1.56 × 105
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 0.345 3470
40.0 0.353 3560
50.0 0.442 4450
60.0 0.530 5340
70.0 0.619 6230
80.0 0.707 7120
90.0 0.795 8010
100 0.884 8900
200 1.77 1.78 × 104
300 2.65 2.67 × 104
400 3.53 3.56 × 104
500 4.42 4.45 × 104
600 5.30 5.34 × 104
700 6.19 6.23 × 104
800 7.07 7.12 × 104
900 7.95 8.01 × 104
1000 8.84 8.90 × 104
1120 9.92 9.99 × 104
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 0.715 5000
40.0 0.733 5130
50.0 0.916 6410
60.0 1.10 7690
70.0 1.28 8970
80.0 1.47 1.03 × 104
90.0 1.65 1.15 × 104
100 1.83 1.28 × 104
200 3.66 2.56 × 104
300 5.50 3.84 × 104
400 7.33 5.13 × 104
500 9.16 6.41 × 104
541 9.92 6.94 × 104
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 1.32 6800
40.0 1.36 6980
50.0 1.70 8720
60.0 2.04 1.05 × 104
70.0 2.38 1.22 × 104
80.0 2.72 1.40 × 104
90.0 3.06 1.57 × 104
100 3.39 1.74 × 104
200 6.79 3.49 × 104
292 9.92 5.10 × 104
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 2.26 8890
40.0 2.32 9110
50.0 2.90 1.14 × 104
60.0 3.47 1.37 × 104
70.0 4.05 1.59 × 104
80.0 4.63 1.82 × 104
90.0 5.21 2.05 × 104
100 5.79 2.28 × 104
171 9.92 3.90 × 104
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 3.62 1.12 × 104
40.0 3.71 1.15 × 104
50.0 4.64 1.44 × 104
60.0 5.57 1.73 × 104
70.0 6.49 2.02 × 104
80.0 7.42 2.31 × 104
90.0 8.35 2.60 × 104
100 9.28 2.88 × 104
107 9.92 3.08 × 104
Steel I Beam: W10 × 39 (Wide Flange 10 inch tall × 39 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
39.0 5.51 1.39 × 104
40.0 5.66 1.42 × 104
50.0 7.07 1.78 × 104
60.0 8.48 2.14 × 104
70.0 9.90 2.49 × 104
70.2 9.92 2.50 × 104
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