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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » S Section Steel I Beam » S6 × 17.25
S Section 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 = 26.3 in4) for the S6 × 17.25 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
   
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 3.92 × 10-5 26.6
20.0 4.55 × 10-5 30.8
30.0 6.83 × 10-5 46.2
40.0 9.10 × 10-5 61.6
50.0 1.14 × 10-4 77.0
60.0 1.37 × 10-4 92.4
70.0 1.59 × 10-4 108
80.0 1.82 × 10-4 123
90.0 2.05 × 10-4 139
100 2.28 × 10-4 154
200 4.55 × 10-4 308
300 6.83 × 10-4 462
400 9.10 × 10-4 616
500 0.00114 770
600 0.00137 924
700 0.00159 1080
800 0.00182 1230
900 0.00205 1390
1000 0.00228 1540
2000 0.00455 3080
3000 0.00683 4620
4000 0.00910 6160
5000 0.0114 7700
6000 0.0137 9240
7000 0.0159 1.08 × 104
8000 0.0182 1.23 × 104
9000 0.0205 1.39 × 104
1.00 × 104 0.0228 1.54 × 104
2.00 × 104 0.0455 3.08 × 104
3.00 × 104 0.0683 4.62 × 104
4.00 × 104 0.0910 6.16 × 104
5.00 × 104 0.114 7.70 × 104
6.00 × 104 0.137 9.24 × 104
7.00 × 104 0.159 1.08 × 105
8.00 × 104 0.182 1.23 × 105
9.00 × 104 0.205 1.39 × 105
1.00 × 105 0.228 1.54 × 105
1.93 × 105 0.439 2.97 × 105
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 3.03 × 10-4 73.8
20.0 3.51 × 10-4 85.6
30.0 5.27 × 10-4 128
40.0 7.02 × 10-4 171
50.0 8.78 × 10-4 214
60.0 0.00105 257
70.0 0.00123 299
80.0 0.00140 342
90.0 0.00158 385
100 0.00176 428
200 0.00351 856
300 0.00527 1280
400 0.00702 1710
500 0.00878 2140
600 0.0105 2570
700 0.0123 2990
800 0.0140 3420
900 0.0158 3850
1000 0.0176 4280
2000 0.0351 8560
3000 0.0527 1.28 × 104
4000 0.0702 1.71 × 104
5000 0.0878 2.14 × 104
6000 0.105 2.57 × 104
7000 0.123 2.99 × 104
8000 0.140 3.42 × 104
9000 0.158 3.85 × 104
1.00 × 104 0.176 4.28 × 104
2.00 × 104 0.351 8.56 × 104
3.00 × 104 0.527 1.28 × 105
4.00 × 104 0.702 1.71 × 105
5.00 × 104 0.878 2.14 × 105
6.00 × 104 1.05 2.57 × 105
6.94 × 104 1.22 2.97 × 105
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 0.00485 295
20.0 0.00562 342
30.0 0.00843 513
40.0 0.0112 684
50.0 0.0140 856
60.0 0.0169 1030
70.0 0.0197 1200
80.0 0.0225 1370
90.0 0.0253 1540
100 0.0281 1710
200 0.0562 3420
300 0.0843 5130
400 0.112 6840
500 0.140 8560
600 0.169 1.03 × 104
700 0.197 1.20 × 104
800 0.225 1.37 × 104
900 0.253 1.54 × 104
1000 0.281 1.71 × 104
2000 0.562 3.42 × 104
3000 0.843 5.13 × 104
4000 1.12 6.84 × 104
5000 1.40 8.56 × 104
6000 1.69 1.03 × 105
7000 1.97 1.20 × 105
8000 2.25 1.37 × 105
9000 2.53 1.54 × 105
1.00 × 104 2.81 1.71 × 105
1.74 × 104 4.88 2.97 × 105
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 0.0245 664
20.0 0.0284 770
30.0 0.0427 1150
40.0 0.0569 1540
50.0 0.0711 1920
60.0 0.0853 2310
70.0 0.0995 2690
80.0 0.114 3080
90.0 0.128 3460
100 0.142 3850
200 0.284 7700
300 0.427 1.15 × 104
400 0.569 1.54 × 104
500 0.711 1.92 × 104
600 0.853 2.31 × 104
700 0.995 2.69 × 104
800 1.14 3.08 × 104
900 1.28 3.46 × 104
1000 1.42 3.85 × 104
2000 2.84 7.70 × 104
3000 4.27 1.15 × 105
4000 5.69 1.54 × 105
4220 6.00 1.62 × 105
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 0.0775 1180
20.0 0.0899 1370
30.0 0.135 2050
40.0 0.180 2740
50.0 0.225 3420
60.0 0.270 4110
70.0 0.315 4790
80.0 0.360 5480
90.0 0.404 6160
100 0.449 6840
200 0.899 1.37 × 104
300 1.35 2.05 × 104
400 1.80 2.74 × 104
500 2.25 3.42 × 104
600 2.70 4.11 × 104
700 3.15 4.79 × 104
800 3.60 5.48 × 104
900 4.04 6.16 × 104
1000 4.49 6.84 × 104
1340 6.00 9.14 × 104
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 0.189 1840
20.0 0.219 2140
30.0 0.329 3210
40.0 0.439 4280
50.0 0.549 5350
60.0 0.658 6420
70.0 0.768 7490
80.0 0.878 8560
90.0 0.987 9620
100 1.10 1.07 × 104
200 2.19 2.14 × 104
300 3.29 3.21 × 104
400 4.39 4.28 × 104
500 5.49 5.35 × 104
547 6.00 5.85 × 104
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 0.392 2660
20.0 0.455 3080
30.0 0.683 4620
40.0 0.910 6160
50.0 1.14 7700
60.0 1.37 9240
70.0 1.59 1.08 × 104
80.0 1.82 1.23 × 104
90.0 2.05 1.39 × 104
100 2.28 1.54 × 104
200 4.55 3.08 × 104
264 6.00 4.06 × 104
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 1.24 4720
20.0 1.44 5480
30.0 2.16 8210
40.0 2.88 1.10 × 104
50.0 3.60 1.37 × 104
60.0 4.31 1.64 × 104
70.0 5.03 1.92 × 104
80.0 5.75 2.19 × 104
83.4 6.00 2.28 × 104
Steel I Beam: S6 × 17.25 (S Section 6 inch tall × 17.25 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
17.3 3.03 7380
20.0 3.51 8560
30.0 5.27 1.28 × 104
34.2 6.00 1.46 × 104
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