engineering fundamentals
S Section Steel I Beam: S10 × 25.4
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » S Section Steel I Beam » S10 × 25.4
S Section 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 = 124 in4) for the S10 × 25.4 S Section 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: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 4.90 × 10-6 13.8
30.0 5.79 × 10-6 16.3
40.0 7.72 × 10-6 21.8
50.0 9.65 × 10-6 27.2
60.0 1.16 × 10-5 32.7
70.0 1.35 × 10-5 38.1
80.0 1.54 × 10-5 43.5
90.0 1.74 × 10-5 49.0
100 1.93 × 10-5 54.4
200 3.86 × 10-5 109
300 5.79 × 10-5 163
400 7.72 × 10-5 218
500 9.65 × 10-5 272
600 1.16 × 10-4 327
700 1.35 × 10-4 381
800 1.54 × 10-4 435
900 1.74 × 10-4 490
1000 1.93 × 10-4 544
2000 3.86 × 10-4 1090
3000 5.79 × 10-4 1630
4000 7.72 × 10-4 2180
5000 9.65 × 10-4 2720
6000 0.00116 3270
7000 0.00135 3810
8000 0.00154 4350
9000 0.00174 4900
1.00 × 104 0.00193 5440
2.00 × 104 0.00386 1.09 × 104
3.00 × 104 0.00579 1.63 × 104
4.00 × 104 0.00772 2.18 × 104
5.00 × 104 0.00965 2.72 × 104
6.00 × 104 0.0116 3.27 × 104
7.00 × 104 0.0135 3.81 × 104
8.00 × 104 0.0154 4.35 × 104
9.00 × 104 0.0174 4.90 × 104
1.00 × 105 0.0193 5.44 × 104
2.00 × 105 0.0386 1.09 × 105
3.00 × 105 0.0579 1.63 × 105
4.00 × 105 0.0772 2.18 × 105
5.00 × 105 0.0965 2.72 × 105
5.46 × 105 0.105 2.97 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 3.78 × 10-5 38.4
30.0 4.47 × 10-5 45.4
40.0 5.96 × 10-5 60.5
50.0 7.45 × 10-5 75.6
60.0 8.94 × 10-5 90.7
70.0 1.04 × 10-4 106
80.0 1.19 × 10-4 121
90.0 1.34 × 10-4 136
100 1.49 × 10-4 151
200 2.98 × 10-4 302
300 4.47 × 10-4 454
400 5.96 × 10-4 605
500 7.45 × 10-4 756
600 8.94 × 10-4 907
700 0.00104 1060
800 0.00119 1210
900 0.00134 1360
1000 0.00149 1510
2000 0.00298 3020
3000 0.00447 4540
4000 0.00596 6050
5000 0.00745 7560
6000 0.00894 9070
7000 0.0104 1.06 × 104
8000 0.0119 1.21 × 104
9000 0.0134 1.36 × 104
1.00 × 104 0.0149 1.51 × 104
2.00 × 104 0.0298 3.02 × 104
3.00 × 104 0.0447 4.54 × 104
4.00 × 104 0.0596 6.05 × 104
5.00 × 104 0.0745 7.56 × 104
6.00 × 104 0.0894 9.07 × 104
7.00 × 104 0.104 1.06 × 105
8.00 × 104 0.119 1.21 × 105
9.00 × 104 0.134 1.36 × 105
1.00 × 105 0.149 1.51 × 105
1.96 × 105 0.293 2.97 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 6.05 × 10-4 154
30.0 7.15 × 10-4 181
40.0 9.53 × 10-4 242
50.0 0.00119 302
60.0 0.00143 363
70.0 0.00167 423
80.0 0.00191 484
90.0 0.00214 544
100 0.00238 605
200 0.00477 1210
300 0.00715 1810
400 0.00953 2420
500 0.0119 3020
600 0.0143 3630
700 0.0167 4230
800 0.0191 4840
900 0.0214 5440
1000 0.0238 6050
2000 0.0477 1.21 × 104
3000 0.0715 1.81 × 104
4000 0.0953 2.42 × 104
5000 0.119 3.02 × 104
6000 0.143 3.63 × 104
7000 0.167 4.23 × 104
8000 0.191 4.84 × 104
9000 0.214 5.44 × 104
1.00 × 104 0.238 6.05 × 104
2.00 × 104 0.477 1.21 × 105
3.00 × 104 0.715 1.81 × 105
4.00 × 104 0.953 2.42 × 105
4.91 × 104 1.17 2.97 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 0.00306 346
30.0 0.00362 408
40.0 0.00483 544
50.0 0.00603 680
60.0 0.00724 817
70.0 0.00844 953
80.0 0.00965 1090
90.0 0.0109 1220
100 0.0121 1360
200 0.0241 2720
300 0.0362 4080
400 0.0483 5440
500 0.0603 6800
600 0.0724 8170
700 0.0844 9530
800 0.0965 1.09 × 104
900 0.109 1.22 × 104
1000 0.121 1.36 × 104
2000 0.241 2.72 × 104
3000 0.362 4.08 × 104
4000 0.483 5.44 × 104
5000 0.603 6.80 × 104
6000 0.724 8.17 × 104
7000 0.844 9.53 × 104
8000 0.965 1.09 × 105
9000 1.09 1.22 × 105
1.00 × 104 1.21 1.36 × 105
2.00 × 104 2.41 2.72 × 105
2.18 × 104 2.63 2.97 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 0.00968 615
30.0 0.0114 726
40.0 0.0153 968
50.0 0.0191 1210
60.0 0.0229 1450
70.0 0.0267 1690
80.0 0.0305 1940
90.0 0.0343 2180
100 0.0381 2420
200 0.0763 4840
300 0.114 7260
400 0.153 9680
500 0.191 1.21 × 104
600 0.229 1.45 × 104
700 0.267 1.69 × 104
800 0.305 1.94 × 104
900 0.343 2.18 × 104
1000 0.381 2.42 × 104
2000 0.763 4.84 × 104
3000 1.14 7.26 × 104
4000 1.53 9.68 × 104
5000 1.91 1.21 × 105
6000 2.29 1.45 × 105
7000 2.67 1.69 × 105
8000 3.05 1.94 × 105
9000 3.43 2.18 × 105
1.00 × 104 3.81 2.42 × 105
1.23 × 104 4.68 2.97 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 0.0236 960
30.0 0.0279 1130
40.0 0.0372 1510
50.0 0.0465 1890
60.0 0.0559 2270
70.0 0.0652 2650
80.0 0.0745 3020
90.0 0.0838 3400
100 0.0931 3780
200 0.186 7560
300 0.279 1.13 × 104
400 0.372 1.51 × 104
500 0.465 1.89 × 104
600 0.559 2.27 × 104
700 0.652 2.65 × 104
800 0.745 3.02 × 104
900 0.838 3.40 × 104
1000 0.931 3.78 × 104
2000 1.86 7.56 × 104
3000 2.79 1.13 × 105
4000 3.72 1.51 × 105
5000 4.65 1.89 × 105
6000 5.59 2.27 × 105
7000 6.52 2.65 × 105
7860 7.31 2.97 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 0.0490 1380
30.0 0.0579 1630
40.0 0.0772 2180
50.0 0.0965 2720
60.0 0.116 3270
70.0 0.135 3810
80.0 0.154 4350
90.0 0.174 4900
100 0.193 5440
200 0.386 1.09 × 104
300 0.579 1.63 × 104
400 0.772 2.18 × 104
500 0.965 2.72 × 104
600 1.16 3.27 × 104
700 1.35 3.81 × 104
800 1.54 4.35 × 104
900 1.74 4.90 × 104
1000 1.93 5.44 × 104
2000 3.86 1.09 × 105
3000 5.79 1.63 × 105
4000 7.72 2.18 × 105
5000 9.65 2.72 × 105
5460 10.5 2.97 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 0.155 2460
30.0 0.183 2900
40.0 0.244 3870
50.0 0.305 4840
60.0 0.366 5810
70.0 0.427 6770
80.0 0.488 7740
90.0 0.549 8710
100 0.610 9680
200 1.22 1.94 × 104
300 1.83 2.90 × 104
400 2.44 3.87 × 104
500 3.05 4.84 × 104
600 3.66 5.81 × 104
700 4.27 6.77 × 104
800 4.88 7.74 × 104
900 5.49 8.71 × 104
1000 6.10 9.68 × 104
1640 10.0 1.59 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 0.378 3840
30.0 0.447 4540
40.0 0.596 6050
50.0 0.745 7560
60.0 0.894 9070
70.0 1.04 1.06 × 104
80.0 1.19 1.21 × 104
90.0 1.34 1.36 × 104
100 1.49 1.51 × 104
200 2.98 3.02 × 104
300 4.47 4.54 × 104
400 5.96 6.05 × 104
500 7.45 7.56 × 104
600 8.94 9.07 × 104
671 10.0 1.02 × 105
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 0.784 5530
30.0 0.927 6530
40.0 1.24 8710
50.0 1.54 1.09 × 104
60.0 1.85 1.31 × 104
70.0 2.16 1.52 × 104
80.0 2.47 1.74 × 104
90.0 2.78 1.96 × 104
100 3.09 2.18 × 104
200 6.18 4.35 × 104
300 9.27 6.53 × 104
324 10.0 7.05 × 104
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 1.45 7530
30.0 1.72 8890
40.0 2.29 1.19 × 104
50.0 2.86 1.48 × 104
60.0 3.43 1.78 × 104
70.0 4.01 2.07 × 104
80.0 4.58 2.37 × 104
90.0 5.15 2.67 × 104
100 5.72 2.96 × 104
175 10.0 5.18 × 104
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 2.48 9830
30.0 2.93 1.16 × 104
40.0 3.90 1.55 × 104
50.0 4.88 1.94 × 104
60.0 5.86 2.32 × 104
70.0 6.83 2.71 × 104
80.0 7.81 3.10 × 104
90.0 8.78 3.48 × 104
100 9.76 3.87 × 104
102 10.0 3.97 × 104
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 3.97 1.24 × 104
30.0 4.69 1.47 × 104
40.0 6.25 1.96 × 104
50.0 7.82 2.45 × 104
60.0 9.38 2.94 × 104
64.0 10.0 3.13 × 104
Steel I Beam: S10 × 25.4 (S10 inch tall × 25.4 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.4 6.05 1.54 × 104
30.0 7.15 1.81 × 104
40.0 9.53 2.42 × 104
42.0 10.0 2.54 × 104
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