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Wide Flange Steel I Beam: W10 × 39
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » 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 a single span, the maximum displacement w_max and the maximum normal stress stress_max occur at the center 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
   
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 1.12 × 10-5 12.5
40.0 1.15 × 10-5 12.8
50.0 1.43 × 10-5 16.0
60.0 1.72 × 10-5 19.2
70.0 2.00 × 10-5 22.4
80.0 2.29 × 10-5 25.6
90.0 2.58 × 10-5 28.8
100 2.86 × 10-5 32.0
200 5.73 × 10-5 64.1
300 8.59 × 10-5 96.1
400 1.15 × 10-4 128
500 1.43 × 10-4 160
600 1.72 × 10-4 192
700 2.00 × 10-4 224
800 2.29 × 10-4 256
900 2.58 × 10-4 288
1000 2.86 × 10-4 320
2000 5.73 × 10-4 641
3000 8.59 × 10-4 961
4000 0.00115 1280
5000 0.00143 1600
6000 0.00172 1920
7000 0.00200 2240
8000 0.00229 2560
9000 0.00258 2880
1.00 × 104 0.00286 3200
2.00 × 104 0.00573 6410
3.00 × 104 0.00859 9610
4.00 × 104 0.0115 1.28 × 104
5.00 × 104 0.0143 1.60 × 104
6.00 × 104 0.0172 1.92 × 104
7.00 × 104 0.0200 2.24 × 104
8.00 × 104 0.0229 2.56 × 104
9.00 × 104 0.0258 2.88 × 104
1.00 × 105 0.0286 3.20 × 104
2.00 × 105 0.0573 6.41 × 104
3.00 × 105 0.0859 9.61 × 104
4.00 × 105 0.115 1.28 × 105
5.00 × 105 0.143 1.60 × 105
6.00 × 105 0.172 1.92 × 105
7.00 × 105 0.200 2.24 × 105
8.00 × 105 0.229 2.56 × 105
9.00 × 105 0.258 2.88 × 105
9.27 × 105 0.265 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 8.62 × 10-5 34.7
40.0 8.84 × 10-5 35.6
50.0 1.10 × 10-4 44.5
60.0 1.33 × 10-4 53.4
70.0 1.55 × 10-4 62.3
80.0 1.77 × 10-4 71.2
90.0 1.99 × 10-4 80.1
100 2.21 × 10-4 89.0
200 4.42 × 10-4 178
300 6.63 × 10-4 267
400 8.84 × 10-4 356
500 0.00110 445
600 0.00133 534
700 0.00155 623
800 0.00177 712
900 0.00199 801
1000 0.00221 890
2000 0.00442 1780
3000 0.00663 2670
4000 0.00884 3560
5000 0.0110 4450
6000 0.0133 5340
7000 0.0155 6230
8000 0.0177 7120
9000 0.0199 8010
1.00 × 104 0.0221 8900
2.00 × 104 0.0442 1.78 × 104
3.00 × 104 0.0663 2.67 × 104
4.00 × 104 0.0884 3.56 × 104
5.00 × 104 0.110 4.45 × 104
6.00 × 104 0.133 5.34 × 104
7.00 × 104 0.155 6.23 × 104
8.00 × 104 0.177 7.12 × 104
9.00 × 104 0.199 8.01 × 104
1.00 × 105 0.221 8.90 × 104
2.00 × 105 0.442 1.78 × 105
3.00 × 105 0.663 2.67 × 105
3.34 × 105 0.737 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 0.00138 139
40.0 0.00141 142
50.0 0.00177 178
60.0 0.00212 214
70.0 0.00247 249
80.0 0.00283 285
90.0 0.00318 320
100 0.00353 356
200 0.00707 712
300 0.0106 1070
400 0.0141 1420
500 0.0177 1780
600 0.0212 2140
700 0.0247 2490
800 0.0283 2850
900 0.0318 3200
1000 0.0353 3560
2000 0.0707 7120
3000 0.106 1.07 × 104
4000 0.141 1.42 × 104
5000 0.177 1.78 × 104
6000 0.212 2.14 × 104
7000 0.247 2.49 × 104
8000 0.283 2.85 × 104
9000 0.318 3.20 × 104
1.00 × 104 0.353 3.56 × 104
2.00 × 104 0.707 7.12 × 104
3.00 × 104 1.06 1.07 × 105
4.00 × 104 1.41 1.42 × 105
5.00 × 104 1.77 1.78 × 105
6.00 × 104 2.12 2.14 × 105
7.00 × 104 2.47 2.49 × 105
8.00 × 104 2.83 2.85 × 105
8.34 × 104 2.95 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 0.00698 312
40.0 0.00716 320
50.0 0.00895 400
60.0 0.0107 481
70.0 0.0125 561
80.0 0.0143 641
90.0 0.0161 721
100 0.0179 801
200 0.0358 1600
300 0.0537 2400
400 0.0716 3200
500 0.0895 4000
600 0.107 4810
700 0.125 5610
800 0.143 6410
900 0.161 7210
1000 0.179 8010
2000 0.358 1.60 × 104
3000 0.537 2.40 × 104
4000 0.716 3.20 × 104
5000 0.895 4.00 × 104
6000 1.07 4.81 × 104
7000 1.25 5.61 × 104
8000 1.43 6.41 × 104
9000 1.61 7.21 × 104
1.00 × 104 1.79 8.01 × 104
2.00 × 104 3.58 1.60 × 105
3.00 × 104 5.37 2.40 × 105
3.71 × 104 6.64 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 0.0221 555
40.0 0.0226 570
50.0 0.0283 712
60.0 0.0339 854
70.0 0.0396 997
80.0 0.0452 1140
90.0 0.0509 1280
100 0.0566 1420
200 0.113 2850
300 0.170 4270
400 0.226 5700
500 0.283 7120
600 0.339 8540
700 0.396 9970
800 0.452 1.14 × 104
900 0.509 1.28 × 104
1000 0.566 1.42 × 104
2000 1.13 2.85 × 104
3000 1.70 4.27 × 104
4000 2.26 5.70 × 104
5000 2.83 7.12 × 104
6000 3.39 8.54 × 104
7000 3.96 9.97 × 104
8000 4.52 1.14 × 105
9000 5.09 1.28 × 105
1.00 × 104 5.66 1.42 × 105
1.75 × 104 9.92 2.50 × 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 0.0538 868
40.0 0.0552 890
50.0 0.0690 1110
60.0 0.0828 1330
70.0 0.0966 1560
80.0 0.110 1780
90.0 0.124 2000
100 0.138 2220
200 0.276 4450
300 0.414 6670
400 0.552 8900
500 0.690 1.11 × 104
600 0.828 1.33 × 104
700 0.966 1.56 × 104
800 1.10 1.78 × 104
900 1.24 2.00 × 104
1000 1.38 2.22 × 104
2000 2.76 4.45 × 104
3000 4.14 6.67 × 104
4000 5.52 8.90 × 104
5000 6.90 1.11 × 105
6000 8.28 1.33 × 105
7000 9.66 1.56 × 105
7180 9.92 1.60 × 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 0.112 1250
40.0 0.115 1280
50.0 0.143 1600
60.0 0.172 1920
70.0 0.200 2240
80.0 0.229 2560
90.0 0.258 2880
100 0.286 3200
200 0.573 6410
300 0.859 9610
400 1.15 1.28 × 104
500 1.43 1.60 × 104
600 1.72 1.92 × 104
700 2.00 2.24 × 104
800 2.29 2.56 × 104
900 2.58 2.88 × 104
1000 2.86 3.20 × 104
2000 5.73 6.41 × 104
3000 8.59 9.61 × 104
3460 9.92 1.11 × 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 0.353 2220
40.0 0.362 2280
50.0 0.452 2850
60.0 0.543 3420
70.0 0.633 3990
80.0 0.724 4560
90.0 0.814 5130
100 0.905 5700
200 1.81 1.14 × 104
300 2.71 1.71 × 104
400 3.62 2.28 × 104
500 4.52 2.85 × 104
600 5.43 3.42 × 104
700 6.33 3.99 × 104
800 7.24 4.56 × 104
900 8.14 5.13 × 104
1000 9.05 5.70 × 104
1100 9.92 6.24 × 104
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 0.862 3470
40.0 0.884 3560
50.0 1.10 4450
60.0 1.33 5340
70.0 1.55 6230
80.0 1.77 7120
90.0 1.99 8010
100 2.21 8900
200 4.42 1.78 × 104
300 6.63 2.67 × 104
400 8.84 3.56 × 104
449 9.92 4.00 × 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 1.79 5000
40.0 1.83 5130
50.0 2.29 6410
60.0 2.75 7690
70.0 3.21 8970
80.0 3.66 1.03 × 104
90.0 4.12 1.15 × 104
100 4.58 1.28 × 104
200 9.16 2.56 × 104
217 9.92 2.78 × 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 3.31 6800
40.0 3.39 6980
50.0 4.24 8720
60.0 5.09 1.05 × 104
70.0 5.94 1.22 × 104
80.0 6.79 1.40 × 104
90.0 7.64 1.57 × 104
100 8.49 1.74 × 104
117 9.92 2.04 × 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 5.65 8890
40.0 5.79 9110
50.0 7.24 1.14 × 104
60.0 8.69 1.37 × 104
68.5 9.92 1.56 × 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 9.04 1.12 × 104
40.0 9.28 1.15 × 104
42.8 9.92 1.23 × 104
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