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Wide Flange Steel I Beam: W10 × 30
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Wide Flange Steel I Beam » W10 × 30
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress stress_max occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 170 in4) for the W10 × 30 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 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 5.11 × 10-6 10.7
40.0 6.81 × 10-6 14.2
50.0 8.52 × 10-6 17.8
60.0 1.02 × 10-5 21.4
70.0 1.19 × 10-5 24.9
80.0 1.36 × 10-5 28.5
90.0 1.53 × 10-5 32.1
100 1.70 × 10-5 35.6
200 3.41 × 10-5 71.2
300 5.11 × 10-5 107
400 6.81 × 10-5 142
500 8.52 × 10-5 178
600 1.02 × 10-4 214
700 1.19 × 10-4 249
800 1.36 × 10-4 285
900 1.53 × 10-4 321
1000 1.70 × 10-4 356
2000 3.41 × 10-4 712
3000 5.11 × 10-4 1070
4000 6.81 × 10-4 1420
5000 8.52 × 10-4 1780
6000 0.00102 2140
7000 0.00119 2490
8000 0.00136 2850
9000 0.00153 3210
1.00 × 104 0.00170 3560
2.00 × 104 0.00341 7120
3.00 × 104 0.00511 1.07 × 104
4.00 × 104 0.00681 1.42 × 104
5.00 × 104 0.00852 1.78 × 104
6.00 × 104 0.0102 2.14 × 104
7.00 × 104 0.0119 2.49 × 104
8.00 × 104 0.0136 2.85 × 104
9.00 × 104 0.0153 3.21 × 104
1.00 × 105 0.0170 3.56 × 104
2.00 × 105 0.0341 7.12 × 104
3.00 × 105 0.0511 1.07 × 105
4.00 × 105 0.0681 1.42 × 105
5.00 × 105 0.0852 1.78 × 105
6.00 × 105 0.102 2.14 × 105
7.00 × 105 0.119 2.49 × 105
8.00 × 105 0.136 2.85 × 105
8.34 × 105 0.142 2.97 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 3.94 × 10-5 29.7
40.0 5.26 × 10-5 39.6
50.0 6.57 × 10-5 49.5
60.0 7.88 × 10-5 59.4
70.0 9.20 × 10-5 69.3
80.0 1.05 × 10-4 79.2
90.0 1.18 × 10-4 89.0
100 1.31 × 10-4 98.9
200 2.63 × 10-4 198
300 3.94 × 10-4 297
400 5.26 × 10-4 396
500 6.57 × 10-4 495
600 7.88 × 10-4 594
700 9.20 × 10-4 693
800 0.00105 792
900 0.00118 890
1000 0.00131 989
2000 0.00263 1980
3000 0.00394 2970
4000 0.00526 3960
5000 0.00657 4950
6000 0.00788 5940
7000 0.00920 6930
8000 0.0105 7920
9000 0.0118 8900
1.00 × 104 0.0131 9890
2.00 × 104 0.0263 1.98 × 104
3.00 × 104 0.0394 2.97 × 104
4.00 × 104 0.0526 3.96 × 104
5.00 × 104 0.0657 4.95 × 104
6.00 × 104 0.0788 5.94 × 104
7.00 × 104 0.0920 6.93 × 104
8.00 × 104 0.105 7.92 × 104
9.00 × 104 0.118 8.90 × 104
1.00 × 105 0.131 9.89 × 104
2.00 × 105 0.263 1.98 × 105
3.00 × 105 0.394 2.97 × 105
3.00 × 105 0.395 2.97 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 6.31 × 10-4 119
40.0 8.41 × 10-4 158
50.0 0.00105 198
60.0 0.00126 237
70.0 0.00147 277
80.0 0.00168 317
90.0 0.00189 356
100 0.00210 396
200 0.00420 792
300 0.00631 1190
400 0.00841 1580
500 0.0105 1980
600 0.0126 2370
700 0.0147 2770
800 0.0168 3170
900 0.0189 3560
1000 0.0210 3960
2000 0.0420 7920
3000 0.0631 1.19 × 104
4000 0.0841 1.58 × 104
5000 0.105 1.98 × 104
6000 0.126 2.37 × 104
7000 0.147 2.77 × 104
8000 0.168 3.17 × 104
9000 0.189 3.56 × 104
1.00 × 104 0.210 3.96 × 104
2.00 × 104 0.420 7.92 × 104
3.00 × 104 0.631 1.19 × 105
4.00 × 104 0.841 1.58 × 105
5.00 × 104 1.05 1.98 × 105
6.00 × 104 1.26 2.37 × 105
7.00 × 104 1.47 2.77 × 105
7.51 × 104 1.58 2.97 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.00319 267
40.0 0.00426 356
50.0 0.00532 445
60.0 0.00639 534
70.0 0.00745 623
80.0 0.00852 712
90.0 0.00958 801
100 0.0106 890
200 0.0213 1780
300 0.0319 2670
400 0.0426 3560
500 0.0532 4450
600 0.0639 5340
700 0.0745 6230
800 0.0852 7120
900 0.0958 8010
1000 0.106 8900
2000 0.213 1.78 × 104
3000 0.319 2.67 × 104
4000 0.426 3.56 × 104
5000 0.532 4.45 × 104
6000 0.639 5.34 × 104
7000 0.745 6.23 × 104
8000 0.852 7.12 × 104
9000 0.958 8.01 × 104
1.00 × 104 1.06 8.90 × 104
2.00 × 104 2.13 1.78 × 105
3.00 × 104 3.19 2.67 × 105
3.34 × 104 3.55 2.97 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.0101 475
40.0 0.0135 633
50.0 0.0168 792
60.0 0.0202 950
70.0 0.0235 1110
80.0 0.0269 1270
90.0 0.0303 1420
100 0.0336 1580
200 0.0673 3170
300 0.101 4750
400 0.135 6330
500 0.168 7920
600 0.202 9500
700 0.235 1.11 × 104
800 0.269 1.27 × 104
900 0.303 1.42 × 104
1000 0.336 1.58 × 104
2000 0.673 3.17 × 104
3000 1.01 4.75 × 104
4000 1.35 6.33 × 104
5000 1.68 7.92 × 104
6000 2.02 9.50 × 104
7000 2.35 1.11 × 105
8000 2.69 1.27 × 105
9000 3.03 1.42 × 105
1.00 × 104 3.36 1.58 × 105
1.88 × 104 6.31 2.97 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.0246 742
40.0 0.0329 989
50.0 0.0411 1240
60.0 0.0493 1480
70.0 0.0575 1730
80.0 0.0657 1980
90.0 0.0739 2230
100 0.0821 2470
200 0.164 4950
300 0.246 7420
400 0.329 9890
500 0.411 1.24 × 104
600 0.493 1.48 × 104
700 0.575 1.73 × 104
800 0.657 1.98 × 104
900 0.739 2.23 × 104
1000 0.821 2.47 × 104
2000 1.64 4.95 × 104
3000 2.46 7.42 × 104
4000 3.29 9.89 × 104
5000 4.11 1.24 × 105
6000 4.93 1.48 × 105
7000 5.75 1.73 × 105
8000 6.57 1.98 × 105
9000 7.39 2.23 × 105
1.00 × 104 8.21 2.47 × 105
1.20 × 104 9.86 2.97 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.0511 1070
40.0 0.0681 1420
50.0 0.0852 1780
60.0 0.102 2140
70.0 0.119 2490
80.0 0.136 2850
90.0 0.153 3210
100 0.170 3560
200 0.341 7120
300 0.511 1.07 × 104
400 0.681 1.42 × 104
500 0.852 1.78 × 104
600 1.02 2.14 × 104
700 1.19 2.49 × 104
800 1.36 2.85 × 104
900 1.53 3.21 × 104
1000 1.70 3.56 × 104
2000 3.41 7.12 × 104
3000 5.11 1.07 × 105
4000 6.81 1.42 × 105
5000 8.52 1.78 × 105
6000 10.2 2.14 × 105
6150 10.5 2.19 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.161 1900
40.0 0.215 2530
50.0 0.269 3170
60.0 0.323 3800
70.0 0.377 4430
80.0 0.431 5070
90.0 0.484 5700
100 0.538 6330
200 1.08 1.27 × 104
300 1.61 1.90 × 104
400 2.15 2.53 × 104
500 2.69 3.17 × 104
600 3.23 3.80 × 104
700 3.77 4.43 × 104
800 4.31 5.07 × 104
900 4.84 5.70 × 104
1000 5.38 6.33 × 104
1950 10.5 1.23 × 105
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.394 2970
40.0 0.526 3960
50.0 0.657 4950
60.0 0.788 5940
70.0 0.920 6930
80.0 1.05 7920
90.0 1.18 8900
100 1.31 9890
200 2.63 1.98 × 104
300 3.94 2.97 × 104
400 5.26 3.96 × 104
500 6.57 4.95 × 104
600 7.88 5.94 × 104
700 9.20 6.93 × 104
797 10.5 7.88 × 104
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 0.817 4270
40.0 1.09 5700
50.0 1.36 7120
60.0 1.63 8550
70.0 1.91 9970
80.0 2.18 1.14 × 104
90.0 2.45 1.28 × 104
100 2.72 1.42 × 104
200 5.45 2.85 × 104
300 8.17 4.27 × 104
384 10.5 5.47 × 104
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 1.51 5820
40.0 2.02 7760
50.0 2.52 9700
60.0 3.03 1.16 × 104
70.0 3.53 1.36 × 104
80.0 4.04 1.55 × 104
90.0 4.54 1.75 × 104
100 5.05 1.94 × 104
200 10.1 3.88 × 104
207 10.5 4.02 × 104
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 2.58 7600
40.0 3.44 1.01 × 104
50.0 4.31 1.27 × 104
60.0 5.17 1.52 × 104
70.0 6.03 1.77 × 104
80.0 6.89 2.03 × 104
90.0 7.75 2.28 × 104
100 8.61 2.53 × 104
122 10.5 3.08 × 104
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 4.14 9620
40.0 5.52 1.28 × 104
50.0 6.90 1.60 × 104
60.0 8.28 1.92 × 104
70.0 9.66 2.24 × 104
75.9 10.5 2.43 × 104
Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
30.0 6.31 1.19 × 104
40.0 8.41 1.58 × 104
49.8 10.5 1.97 × 104
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