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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four 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 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 = 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 5.93 × 10-6 11.8
30.0 7.00 × 10-6 14.0
40.0 9.34 × 10-6 18.7
50.0 1.17 × 10-5 23.3
60.0 1.40 × 10-5 28.0
70.0 1.63 × 10-5 32.6
80.0 1.87 × 10-5 37.3
90.0 2.10 × 10-5 42.0
100 2.33 × 10-5 46.6
200 4.67 × 10-5 93.3
300 7.00 × 10-5 140
400 9.34 × 10-5 187
500 1.17 × 10-4 233
600 1.40 × 10-4 280
700 1.63 × 10-4 326
800 1.87 × 10-4 373
900 2.10 × 10-4 420
1000 2.33 × 10-4 466
2000 4.67 × 10-4 933
3000 7.00 × 10-4 1400
4000 9.34 × 10-4 1870
5000 0.00117 2330
6000 0.00140 2800
7000 0.00163 3260
8000 0.00187 3730
9000 0.00210 4200
1.00 × 104 0.00233 4660
2.00 × 104 0.00467 9330
3.00 × 104 0.00700 1.40 × 104
4.00 × 104 0.00934 1.87 × 104
5.00 × 104 0.0117 2.33 × 104
6.00 × 104 0.0140 2.80 × 104
7.00 × 104 0.0163 3.26 × 104
8.00 × 104 0.0187 3.73 × 104
9.00 × 104 0.0210 4.20 × 104
1.00 × 105 0.0233 4.66 × 104
2.00 × 105 0.0467 9.33 × 104
3.00 × 105 0.0700 1.40 × 105
4.00 × 105 0.0934 1.87 × 105
5.00 × 105 0.117 2.33 × 105
6.00 × 105 0.140 2.80 × 105
6.37 × 105 0.149 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 4.58 × 10-5 32.9
30.0 5.40 × 10-5 38.9
40.0 7.21 × 10-5 51.8
50.0 9.01 × 10-5 64.8
60.0 1.08 × 10-4 77.7
70.0 1.26 × 10-4 90.7
80.0 1.44 × 10-4 104
90.0 1.62 × 10-4 117
100 1.80 × 10-4 130
200 3.60 × 10-4 259
300 5.40 × 10-4 389
400 7.21 × 10-4 518
500 9.01 × 10-4 648
600 0.00108 777
700 0.00126 907
800 0.00144 1040
900 0.00162 1170
1000 0.00180 1300
2000 0.00360 2590
3000 0.00540 3890
4000 0.00721 5180
5000 0.00901 6480
6000 0.0108 7770
7000 0.0126 9070
8000 0.0144 1.04 × 104
9000 0.0162 1.17 × 104
1.00 × 104 0.0180 1.30 × 104
2.00 × 104 0.0360 2.59 × 104
3.00 × 104 0.0540 3.89 × 104
4.00 × 104 0.0721 5.18 × 104
5.00 × 104 0.0901 6.48 × 104
6.00 × 104 0.108 7.77 × 104
7.00 × 104 0.126 9.07 × 104
8.00 × 104 0.144 1.04 × 105
9.00 × 104 0.162 1.17 × 105
1.00 × 105 0.180 1.30 × 105
2.00 × 105 0.360 2.59 × 105
2.29 × 105 0.413 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 7.32 × 10-4 132
30.0 8.65 × 10-4 155
40.0 0.00115 207
50.0 0.00144 259
60.0 0.00173 311
70.0 0.00202 363
80.0 0.00231 415
90.0 0.00259 466
100 0.00288 518
200 0.00576 1040
300 0.00865 1550
400 0.0115 2070
500 0.0144 2590
600 0.0173 3110
700 0.0202 3630
800 0.0231 4150
900 0.0259 4660
1000 0.0288 5180
2000 0.0576 1.04 × 104
3000 0.0865 1.55 × 104
4000 0.115 2.07 × 104
5000 0.144 2.59 × 104
6000 0.173 3.11 × 104
7000 0.202 3.63 × 104
8000 0.231 4.15 × 104
9000 0.259 4.66 × 104
1.00 × 104 0.288 5.18 × 104
2.00 × 104 0.576 1.04 × 105
3.00 × 104 0.865 1.55 × 105
4.00 × 104 1.15 2.07 × 105
5.00 × 104 1.44 2.59 × 105
5.73 × 104 1.65 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 0.00371 296
30.0 0.00438 350
40.0 0.00584 466
50.0 0.00730 583
60.0 0.00876 700
70.0 0.0102 816
80.0 0.0117 933
90.0 0.0131 1050
100 0.0146 1170
200 0.0292 2330
300 0.0438 3500
400 0.0584 4660
500 0.0730 5830
600 0.0876 7000
700 0.102 8160
800 0.117 9330
900 0.131 1.05 × 104
1000 0.146 1.17 × 104
2000 0.292 2.33 × 104
3000 0.438 3.50 × 104
4000 0.584 4.66 × 104
5000 0.730 5.83 × 104
6000 0.876 7.00 × 104
7000 1.02 8.16 × 104
8000 1.17 9.33 × 104
9000 1.31 1.05 × 105
1.00 × 104 1.46 1.17 × 105
2.00 × 104 2.92 2.33 × 105
2.55 × 104 3.72 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 0.0117 527
30.0 0.0138 622
40.0 0.0184 829
50.0 0.0231 1040
60.0 0.0277 1240
70.0 0.0323 1450
80.0 0.0369 1660
90.0 0.0415 1870
100 0.0461 2070
200 0.0922 4150
300 0.138 6220
400 0.184 8290
500 0.231 1.04 × 104
600 0.277 1.24 × 104
700 0.323 1.45 × 104
800 0.369 1.66 × 104
900 0.415 1.87 × 104
1000 0.461 2.07 × 104
2000 0.922 4.15 × 104
3000 1.38 6.22 × 104
4000 1.84 8.29 × 104
5000 2.31 1.04 × 105
6000 2.77 1.24 × 105
7000 3.23 1.45 × 105
8000 3.69 1.66 × 105
9000 4.15 1.87 × 105
1.00 × 104 4.61 2.07 × 105
1.43 × 104 6.61 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 0.0286 823
30.0 0.0338 972
40.0 0.0450 1300
50.0 0.0563 1620
60.0 0.0676 1940
70.0 0.0788 2270
80.0 0.0901 2590
90.0 0.101 2920
100 0.113 3240
200 0.225 6480
300 0.338 9720
400 0.450 1.30 × 104
500 0.563 1.62 × 104
600 0.676 1.94 × 104
700 0.788 2.27 × 104
800 0.901 2.59 × 104
900 1.01 2.92 × 104
1000 1.13 3.24 × 104
2000 2.25 6.48 × 104
3000 3.38 9.72 × 104
4000 4.50 1.30 × 105
5000 5.63 1.62 × 105
6000 6.76 1.94 × 105
7000 7.88 2.27 × 105
8000 9.01 2.59 × 105
8880 10.0 2.88 × 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 0.0593 1180
30.0 0.0700 1400
40.0 0.0934 1870
50.0 0.117 2330
60.0 0.140 2800
70.0 0.163 3260
80.0 0.187 3730
90.0 0.210 4200
100 0.233 4660
200 0.467 9330
300 0.700 1.40 × 104
400 0.934 1.87 × 104
500 1.17 2.33 × 104
600 1.40 2.80 × 104
700 1.63 3.26 × 104
800 1.87 3.73 × 104
900 2.10 4.20 × 104
1000 2.33 4.66 × 104
2000 4.67 9.33 × 104
3000 7.00 1.40 × 105
4000 9.34 1.87 × 105
4280 10.0 2.00 × 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 0.187 2110
30.0 0.221 2490
40.0 0.295 3320
50.0 0.369 4150
60.0 0.443 4970
70.0 0.517 5800
80.0 0.590 6630
90.0 0.664 7460
100 0.738 8290
200 1.48 1.66 × 104
300 2.21 2.49 × 104
400 2.95 3.32 × 104
500 3.69 4.15 × 104
600 4.43 4.97 × 104
700 5.17 5.80 × 104
800 5.90 6.63 × 104
900 6.64 7.46 × 104
1000 7.38 8.29 × 104
1360 10.0 1.12 × 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 0.458 3290
30.0 0.540 3890
40.0 0.721 5180
50.0 0.901 6480
60.0 1.08 7770
70.0 1.26 9070
80.0 1.44 1.04 × 104
90.0 1.62 1.17 × 104
100 1.80 1.30 × 104
200 3.60 2.59 × 104
300 5.40 3.89 × 104
400 7.21 5.18 × 104
500 9.01 6.48 × 104
555 10.0 7.19 × 104
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 0.949 4740
30.0 1.12 5600
40.0 1.49 7460
50.0 1.87 9330
60.0 2.24 1.12 × 104
70.0 2.61 1.31 × 104
80.0 2.99 1.49 × 104
90.0 3.36 1.68 × 104
100 3.74 1.87 × 104
200 7.47 3.73 × 104
268 10.0 4.99 × 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 1.76 6450
30.0 2.08 7620
40.0 2.77 1.02 × 104
50.0 3.46 1.27 × 104
60.0 4.15 1.52 × 104
70.0 4.84 1.78 × 104
80.0 5.54 2.03 × 104
90.0 6.23 2.29 × 104
100 6.92 2.54 × 104
144 10.0 3.67 × 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 3.00 8420
30.0 3.54 9950
40.0 4.72 1.33 × 104
50.0 5.90 1.66 × 104
60.0 7.08 1.99 × 104
70.0 8.26 2.32 × 104
80.0 9.45 2.65 × 104
84.7 10.0 2.81 × 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 4.80 1.07 × 104
30.0 5.67 1.26 × 104
40.0 7.56 1.68 × 104
50.0 9.46 2.10 × 104
52.9 10.0 2.22 × 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 7.32 1.32 × 104
30.0 8.65 1.55 × 104
34.7 10.0 1.80 × 104
Additional Information
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