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Wide Flange Steel I Beam: W10 × 15
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W10 × 15
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 = 68.9 in4) for the W10 × 15 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 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 5.21 × 10-6 14.7
20.0 6.95 × 10-6 19.6
30.0 1.04 × 10-5 29.4
40.0 1.39 × 10-5 39.1
50.0 1.74 × 10-5 48.9
60.0 2.08 × 10-5 58.7
70.0 2.43 × 10-5 68.5
80.0 2.78 × 10-5 78.3
90.0 3.13 × 10-5 88.1
100 3.47 × 10-5 97.9
200 6.95 × 10-5 196
300 1.04 × 10-4 294
400 1.39 × 10-4 391
500 1.74 × 10-4 489
600 2.08 × 10-4 587
700 2.43 × 10-4 685
800 2.78 × 10-4 783
900 3.13 × 10-4 881
1000 3.47 × 10-4 979
2000 6.95 × 10-4 1960
3000 0.00104 2940
4000 0.00139 3910
5000 0.00174 4890
6000 0.00208 5870
7000 0.00243 6850
8000 0.00278 7830
9000 0.00313 8810
1.00 × 104 0.00347 9790
2.00 × 104 0.00695 1.96 × 104
3.00 × 104 0.0104 2.94 × 104
4.00 × 104 0.0139 3.91 × 104
5.00 × 104 0.0174 4.89 × 104
6.00 × 104 0.0208 5.87 × 104
7.00 × 104 0.0243 6.85 × 104
8.00 × 104 0.0278 7.83 × 104
9.00 × 104 0.0313 8.81 × 104
1.00 × 105 0.0347 9.79 × 104
2.00 × 105 0.0695 1.96 × 105
3.00 × 105 0.104 2.94 × 105
3.04 × 105 0.105 2.97 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 4.02 × 10-5 40.8
20.0 5.36 × 10-5 54.4
30.0 8.04 × 10-5 81.6
40.0 1.07 × 10-4 109
50.0 1.34 × 10-4 136
60.0 1.61 × 10-4 163
70.0 1.88 × 10-4 190
80.0 2.14 × 10-4 217
90.0 2.41 × 10-4 245
100 2.68 × 10-4 272
200 5.36 × 10-4 544
300 8.04 × 10-4 816
400 0.00107 1090
500 0.00134 1360
600 0.00161 1630
700 0.00188 1900
800 0.00214 2170
900 0.00241 2450
1000 0.00268 2720
2000 0.00536 5440
3000 0.00804 8160
4000 0.0107 1.09 × 104
5000 0.0134 1.36 × 104
6000 0.0161 1.63 × 104
7000 0.0188 1.90 × 104
8000 0.0214 2.17 × 104
9000 0.0241 2.45 × 104
1.00 × 104 0.0268 2.72 × 104
2.00 × 104 0.0536 5.44 × 104
3.00 × 104 0.0804 8.16 × 104
4.00 × 104 0.107 1.09 × 105
5.00 × 104 0.134 1.36 × 105
6.00 × 104 0.161 1.63 × 105
7.00 × 104 0.188 1.90 × 105
8.00 × 104 0.214 2.17 × 105
9.00 × 104 0.241 2.45 × 105
1.00 × 105 0.268 2.72 × 105
1.09 × 105 0.293 2.97 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 6.43 × 10-4 163
20.0 8.58 × 10-4 217
30.0 0.00129 326
40.0 0.00172 435
50.0 0.00214 544
60.0 0.00257 652
70.0 0.00300 761
80.0 0.00343 870
90.0 0.00386 979
100 0.00429 1090
200 0.00858 2170
300 0.0129 3260
400 0.0172 4350
500 0.0214 5440
600 0.0257 6520
700 0.0300 7610
800 0.0343 8700
900 0.0386 9790
1000 0.0429 1.09 × 104
2000 0.0858 2.17 × 104
3000 0.129 3.26 × 104
4000 0.172 4.35 × 104
5000 0.214 5.44 × 104
6000 0.257 6.52 × 104
7000 0.300 7.61 × 104
8000 0.343 8.70 × 104
9000 0.386 9.79 × 104
1.00 × 104 0.429 1.09 × 105
2.00 × 104 0.858 2.17 × 105
2.73 × 104 1.17 2.97 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.00326 367
20.0 0.00434 489
30.0 0.00651 734
40.0 0.00868 979
50.0 0.0109 1220
60.0 0.0130 1470
70.0 0.0152 1710
80.0 0.0174 1960
90.0 0.0195 2200
100 0.0217 2450
200 0.0434 4890
300 0.0651 7340
400 0.0868 9790
500 0.109 1.22 × 104
600 0.130 1.47 × 104
700 0.152 1.71 × 104
800 0.174 1.96 × 104
900 0.195 2.20 × 104
1000 0.217 2.45 × 104
2000 0.434 4.89 × 104
3000 0.651 7.34 × 104
4000 0.868 9.79 × 104
5000 1.09 1.22 × 105
6000 1.30 1.47 × 105
7000 1.52 1.71 × 105
8000 1.74 1.96 × 105
9000 1.95 2.20 × 105
1.00 × 104 2.17 2.45 × 105
1.21 × 104 2.64 2.97 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.0103 652
20.0 0.0137 870
30.0 0.0206 1300
40.0 0.0274 1740
50.0 0.0343 2170
60.0 0.0412 2610
70.0 0.0480 3040
80.0 0.0549 3480
90.0 0.0618 3910
100 0.0686 4350
200 0.137 8700
300 0.206 1.30 × 104
400 0.274 1.74 × 104
500 0.343 2.17 × 104
600 0.412 2.61 × 104
700 0.480 3.04 × 104
800 0.549 3.48 × 104
900 0.618 3.91 × 104
1000 0.686 4.35 × 104
2000 1.37 8.70 × 104
3000 2.06 1.30 × 105
4000 2.74 1.74 × 105
5000 3.43 2.17 × 105
6000 4.12 2.61 × 105
6830 4.69 2.97 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.0251 1020
20.0 0.0335 1360
30.0 0.0503 2040
40.0 0.0670 2720
50.0 0.0838 3400
60.0 0.101 4080
70.0 0.117 4760
80.0 0.134 5440
90.0 0.151 6120
100 0.168 6800
200 0.335 1.36 × 104
300 0.503 2.04 × 104
400 0.670 2.72 × 104
500 0.838 3.40 × 104
600 1.01 4.08 × 104
700 1.17 4.76 × 104
800 1.34 5.44 × 104
900 1.51 6.12 × 104
1000 1.68 6.80 × 104
2000 3.35 1.36 × 105
3000 5.03 2.04 × 105
4000 6.70 2.72 × 105
4370 7.32 2.97 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.0521 1470
20.0 0.0695 1960
30.0 0.104 2940
40.0 0.139 3910
50.0 0.174 4890
60.0 0.208 5870
70.0 0.243 6850
80.0 0.278 7830
90.0 0.313 8810
100 0.347 9790
200 0.695 1.96 × 104
300 1.04 2.94 × 104
400 1.39 3.91 × 104
500 1.74 4.89 × 104
600 2.08 5.87 × 104
700 2.43 6.85 × 104
800 2.78 7.83 × 104
900 3.13 8.81 × 104
1000 3.47 9.79 × 104
2000 6.95 1.96 × 105
2880 9.99 2.81 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.165 2610
20.0 0.220 3480
30.0 0.329 5220
40.0 0.439 6960
50.0 0.549 8700
60.0 0.659 1.04 × 104
70.0 0.769 1.22 × 104
80.0 0.878 1.39 × 104
90.0 0.988 1.57 × 104
100 1.10 1.74 × 104
200 2.20 3.48 × 104
300 3.29 5.22 × 104
400 4.39 6.96 × 104
500 5.49 8.70 × 104
600 6.59 1.04 × 105
700 7.69 1.22 × 105
800 8.78 1.39 × 105
900 9.88 1.57 × 105
910 9.99 1.58 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.402 4080
20.0 0.536 5440
30.0 0.804 8160
40.0 1.07 1.09 × 104
50.0 1.34 1.36 × 104
60.0 1.61 1.63 × 104
70.0 1.88 1.90 × 104
80.0 2.14 2.17 × 104
90.0 2.41 2.45 × 104
100 2.68 2.72 × 104
200 5.36 5.44 × 104
300 8.04 8.16 × 104
373 9.99 1.01 × 105
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.834 5870
20.0 1.11 7830
30.0 1.67 1.17 × 104
40.0 2.22 1.57 × 104
50.0 2.78 1.96 × 104
60.0 3.33 2.35 × 104
70.0 3.89 2.74 × 104
80.0 4.45 3.13 × 104
90.0 5.00 3.52 × 104
100 5.56 3.91 × 104
180 9.99 7.04 × 104
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 1.54 7990
20.0 2.06 1.07 × 104
30.0 3.09 1.60 × 104
40.0 4.12 2.13 × 104
50.0 5.15 2.66 × 104
60.0 6.18 3.20 × 104
70.0 7.21 3.73 × 104
80.0 8.24 4.26 × 104
90.0 9.27 4.80 × 104
97.0 9.99 5.17 × 104
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 2.63 1.04 × 104
20.0 3.51 1.39 × 104
30.0 5.27 2.09 × 104
40.0 7.03 2.78 × 104
50.0 8.78 3.48 × 104
56.9 9.99 3.96 × 104
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 4.22 1.32 × 104
20.0 5.63 1.76 × 104
30.0 8.44 2.64 × 104
35.5 9.99 3.13 × 104
Steel I Beam: W10 × 15 (Wide Flange 10 inch tall × 15 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 6.43 1.63 × 104
20.0 8.58 2.17 × 104
23.3 9.99 2.53 × 104
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