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Wide Flange Steel I Beam: W10 × 45
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W10 × 45
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 = 248 in4) for the W10 × 45 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 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 1.09 × 10-5 12.4
50.0 1.21 × 10-5 13.7
60.0 1.45 × 10-5 16.5
70.0 1.69 × 10-5 19.2
80.0 1.93 × 10-5 22.0
90.0 2.17 × 10-5 24.7
100 2.41 × 10-5 27.5
200 4.83 × 10-5 55.0
300 7.24 × 10-5 82.5
400 9.65 × 10-5 110
500 1.21 × 10-4 137
600 1.45 × 10-4 165
700 1.69 × 10-4 192
800 1.93 × 10-4 220
900 2.17 × 10-4 247
1000 2.41 × 10-4 275
2000 4.83 × 10-4 550
3000 7.24 × 10-4 825
4000 9.65 × 10-4 1100
5000 0.00121 1370
6000 0.00145 1650
7000 0.00169 1920
8000 0.00193 2200
9000 0.00217 2470
1.00 × 104 0.00241 2750
2.00 × 104 0.00483 5500
3.00 × 104 0.00724 8250
4.00 × 104 0.00965 1.10 × 104
5.00 × 104 0.0121 1.37 × 104
6.00 × 104 0.0145 1.65 × 104
7.00 × 104 0.0169 1.92 × 104
8.00 × 104 0.0193 2.20 × 104
9.00 × 104 0.0217 2.47 × 104
1.00 × 105 0.0241 2.75 × 104
2.00 × 105 0.0483 5.50 × 104
3.00 × 105 0.0724 8.25 × 104
4.00 × 105 0.0965 1.10 × 105
5.00 × 105 0.121 1.37 × 105
6.00 × 105 0.145 1.65 × 105
7.00 × 105 0.169 1.92 × 105
8.00 × 105 0.193 2.20 × 105
9.00 × 105 0.217 2.47 × 105
1.00 × 106 0.241 2.75 × 105
1.08 × 106 0.261 2.97 × 105
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 8.38 × 10-5 34.4
50.0 9.31 × 10-5 38.2
60.0 1.12 × 10-4 45.8
70.0 1.30 × 10-4 53.5
80.0 1.49 × 10-4 61.1
90.0 1.68 × 10-4 68.7
100 1.86 × 10-4 76.4
200 3.72 × 10-4 153
300 5.59 × 10-4 229
400 7.45 × 10-4 305
500 9.31 × 10-4 382
600 0.00112 458
700 0.00130 535
800 0.00149 611
900 0.00168 687
1000 0.00186 764
2000 0.00372 1530
3000 0.00559 2290
4000 0.00745 3050
5000 0.00931 3820
6000 0.0112 4580
7000 0.0130 5350
8000 0.0149 6110
9000 0.0168 6870
1.00 × 104 0.0186 7640
2.00 × 104 0.0372 1.53 × 104
3.00 × 104 0.0559 2.29 × 104
4.00 × 104 0.0745 3.05 × 104
5.00 × 104 0.0931 3.82 × 104
6.00 × 104 0.112 4.58 × 104
7.00 × 104 0.130 5.35 × 104
8.00 × 104 0.149 6.11 × 104
9.00 × 104 0.168 6.87 × 104
1.00 × 105 0.186 7.64 × 104
2.00 × 105 0.372 1.53 × 105
3.00 × 105 0.559 2.29 × 105
3.89 × 105 0.724 2.97 × 105
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 0.00134 137
50.0 0.00149 153
60.0 0.00179 183
70.0 0.00209 214
80.0 0.00238 244
90.0 0.00268 275
100 0.00298 305
200 0.00596 611
300 0.00894 916
400 0.0119 1220
500 0.0149 1530
600 0.0179 1830
700 0.0209 2140
800 0.0238 2440
900 0.0268 2750
1000 0.0298 3050
2000 0.0596 6110
3000 0.0894 9160
4000 0.119 1.22 × 104
5000 0.149 1.53 × 104
6000 0.179 1.83 × 104
7000 0.209 2.14 × 104
8000 0.238 2.44 × 104
9000 0.268 2.75 × 104
1.00 × 104 0.298 3.05 × 104
2.00 × 104 0.596 6.11 × 104
3.00 × 104 0.894 9.16 × 104
4.00 × 104 1.19 1.22 × 105
5.00 × 104 1.49 1.53 × 105
6.00 × 104 1.79 1.83 × 105
7.00 × 104 2.09 2.14 × 105
8.00 × 104 2.38 2.44 × 105
9.00 × 104 2.68 2.75 × 105
9.72 × 104 2.90 2.97 × 105
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 0.00679 309
50.0 0.00754 344
60.0 0.00905 412
70.0 0.0106 481
80.0 0.0121 550
90.0 0.0136 619
100 0.0151 687
200 0.0302 1370
300 0.0452 2060
400 0.0603 2750
500 0.0754 3440
600 0.0905 4120
700 0.106 4810
800 0.121 5500
900 0.136 6190
1000 0.151 6870
2000 0.302 1.37 × 104
3000 0.452 2.06 × 104
4000 0.603 2.75 × 104
5000 0.754 3.44 × 104
6000 0.905 4.12 × 104
7000 1.06 4.81 × 104
8000 1.21 5.50 × 104
9000 1.36 6.19 × 104
1.00 × 104 1.51 6.87 × 104
2.00 × 104 3.02 1.37 × 105
3.00 × 104 4.52 2.06 × 105
4.00 × 104 6.03 2.75 × 105
4.32 × 104 6.52 2.97 × 105
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 0.0214 550
50.0 0.0238 611
60.0 0.0286 733
70.0 0.0334 855
80.0 0.0381 977
90.0 0.0429 1100
100 0.0477 1220
200 0.0953 2440
300 0.143 3670
400 0.191 4890
500 0.238 6110
600 0.286 7330
700 0.334 8550
800 0.381 9770
900 0.429 1.10 × 104
1000 0.477 1.22 × 104
2000 0.953 2.44 × 104
3000 1.43 3.67 × 104
4000 1.91 4.89 × 104
5000 2.38 6.11 × 104
6000 2.86 7.33 × 104
7000 3.34 8.55 × 104
8000 3.81 9.77 × 104
9000 4.29 1.10 × 105
1.00 × 104 4.77 1.22 × 105
2.00 × 104 9.53 2.44 × 105
2.43 × 104 11.6 2.97 × 105
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 0.0524 859
50.0 0.0582 955
60.0 0.0698 1150
70.0 0.0814 1340
80.0 0.0931 1530
90.0 0.105 1720
100 0.116 1910
200 0.233 3820
300 0.349 5730
400 0.465 7640
500 0.582 9550
600 0.698 1.15 × 104
700 0.814 1.34 × 104
800 0.931 1.53 × 104
900 1.05 1.72 × 104
1000 1.16 1.91 × 104
2000 2.33 3.82 × 104
3000 3.49 5.73 × 104
4000 4.65 7.64 × 104
5000 5.82 9.55 × 104
6000 6.98 1.15 × 105
7000 8.14 1.34 × 105
8000 9.31 1.53 × 105
8680 10.1 1.66 × 105
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 0.109 1240
50.0 0.121 1370
60.0 0.145 1650
70.0 0.169 1920
80.0 0.193 2200
90.0 0.217 2470
100 0.241 2750
200 0.483 5500
300 0.724 8250
400 0.965 1.10 × 104
500 1.21 1.37 × 104
600 1.45 1.65 × 104
700 1.69 1.92 × 104
800 1.93 2.20 × 104
900 2.17 2.47 × 104
1000 2.41 2.75 × 104
2000 4.83 5.50 × 104
3000 7.24 8.25 × 104
4000 9.65 1.10 × 105
4190 10.1 1.15 × 105
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 0.343 2200
50.0 0.381 2440
60.0 0.458 2930
70.0 0.534 3420
80.0 0.610 3910
90.0 0.686 4400
100 0.763 4890
200 1.53 9770
300 2.29 1.47 × 104
400 3.05 1.95 × 104
500 3.81 2.44 × 104
600 4.58 2.93 × 104
700 5.34 3.42 × 104
800 6.10 3.91 × 104
900 6.86 4.40 × 104
1000 7.63 4.89 × 104
1320 10.1 6.47 × 104
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 0.838 3440
50.0 0.931 3820
60.0 1.12 4580
70.0 1.30 5350
80.0 1.49 6110
90.0 1.68 6870
100 1.86 7640
200 3.72 1.53 × 104
300 5.59 2.29 × 104
400 7.45 3.05 × 104
500 9.31 3.82 × 104
543 10.1 4.14 × 104
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 1.74 4950
50.0 1.93 5500
60.0 2.32 6600
70.0 2.70 7700
80.0 3.09 8800
90.0 3.47 9900
100 3.86 1.10 × 104
200 7.72 2.20 × 104
262 10.1 2.88 × 104
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 3.22 6740
50.0 3.58 7480
60.0 4.29 8980
70.0 5.01 1.05 × 104
80.0 5.72 1.20 × 104
90.0 6.44 1.35 × 104
100 7.15 1.50 × 104
141 10.1 2.11 × 104
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 5.49 8800
50.0 6.10 9770
60.0 7.32 1.17 × 104
70.0 8.54 1.37 × 104
80.0 9.76 1.56 × 104
82.8 10.1 1.62 × 104
Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
45.0 8.79 1.11 × 104
50.0 9.77 1.24 × 104
51.7 10.1 1.28 × 104
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