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Wide Flange Steel I Beam: W8 × 35
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W8 × 35
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 = 127 in4) for the W8 × 35 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
   
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 1.65 × 10-5 15.1
40.0 1.88 × 10-5 17.3
50.0 2.36 × 10-5 21.6
60.0 2.83 × 10-5 25.9
70.0 3.30 × 10-5 30.2
80.0 3.77 × 10-5 34.5
90.0 4.24 × 10-5 38.8
100 4.71 × 10-5 43.2
200 9.42 × 10-5 86.3
300 1.41 × 10-4 129
400 1.88 × 10-4 173
500 2.36 × 10-4 216
600 2.83 × 10-4 259
700 3.30 × 10-4 302
800 3.77 × 10-4 345
900 4.24 × 10-4 388
1000 4.71 × 10-4 432
2000 9.42 × 10-4 863
3000 0.00141 1290
4000 0.00188 1730
5000 0.00236 2160
6000 0.00283 2590
7000 0.00330 3020
8000 0.00377 3450
9000 0.00424 3880
1.00 × 104 0.00471 4320
2.00 × 104 0.00942 8630
3.00 × 104 0.0141 1.29 × 104
4.00 × 104 0.0188 1.73 × 104
5.00 × 104 0.0236 2.16 × 104
6.00 × 104 0.0283 2.59 × 104
7.00 × 104 0.0330 3.02 × 104
8.00 × 104 0.0377 3.45 × 104
9.00 × 104 0.0424 3.88 × 104
1.00 × 105 0.0471 4.32 × 104
2.00 × 105 0.0942 8.63 × 104
3.00 × 105 0.141 1.29 × 105
4.00 × 105 0.188 1.73 × 105
5.00 × 105 0.236 2.16 × 105
6.00 × 105 0.283 2.59 × 105
6.88 × 105 0.324 2.97 × 105
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 1.27 × 10-4 42.0
40.0 1.45 × 10-4 48.0
50.0 1.82 × 10-4 59.9
60.0 2.18 × 10-4 71.9
70.0 2.54 × 10-4 83.9
80.0 2.91 × 10-4 95.9
90.0 3.27 × 10-4 108
100 3.64 × 10-4 120
200 7.27 × 10-4 240
300 0.00109 360
400 0.00145 480
500 0.00182 599
600 0.00218 719
700 0.00254 839
800 0.00291 959
900 0.00327 1080
1000 0.00364 1200
2000 0.00727 2400
3000 0.0109 3600
4000 0.0145 4800
5000 0.0182 5990
6000 0.0218 7190
7000 0.0254 8390
8000 0.0291 9590
9000 0.0327 1.08 × 104
1.00 × 104 0.0364 1.20 × 104
2.00 × 104 0.0727 2.40 × 104
3.00 × 104 0.109 3.60 × 104
4.00 × 104 0.145 4.80 × 104
5.00 × 104 0.182 5.99 × 104
6.00 × 104 0.218 7.19 × 104
7.00 × 104 0.254 8.39 × 104
8.00 × 104 0.291 9.59 × 104
9.00 × 104 0.327 1.08 × 105
1.00 × 105 0.364 1.20 × 105
2.00 × 105 0.727 2.40 × 105
2.48 × 105 0.901 2.97 × 105
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.00204 168
40.0 0.00233 192
50.0 0.00291 240
60.0 0.00349 288
70.0 0.00407 336
80.0 0.00465 384
90.0 0.00524 432
100 0.00582 480
200 0.0116 959
300 0.0175 1440
400 0.0233 1920
500 0.0291 2400
600 0.0349 2880
700 0.0407 3360
800 0.0465 3840
900 0.0524 4320
1000 0.0582 4800
2000 0.116 9590
3000 0.175 1.44 × 104
4000 0.233 1.92 × 104
5000 0.291 2.40 × 104
6000 0.349 2.88 × 104
7000 0.407 3.36 × 104
8000 0.465 3.84 × 104
9000 0.524 4.32 × 104
1.00 × 104 0.582 4.80 × 104
2.00 × 104 1.16 9.59 × 104
3.00 × 104 1.75 1.44 × 105
4.00 × 104 2.33 1.92 × 105
5.00 × 104 2.91 2.40 × 105
6.00 × 104 3.49 2.88 × 105
6.19 × 104 3.60 2.97 × 105
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.0103 378
40.0 0.0118 432
50.0 0.0147 539
60.0 0.0177 647
70.0 0.0206 755
80.0 0.0236 863
90.0 0.0265 971
100 0.0294 1080
200 0.0589 2160
300 0.0883 3240
400 0.118 4320
500 0.147 5390
600 0.177 6470
700 0.206 7550
800 0.236 8630
900 0.265 9710
1000 0.294 1.08 × 104
2000 0.589 2.16 × 104
3000 0.883 3.24 × 104
4000 1.18 4.32 × 104
5000 1.47 5.39 × 104
6000 1.77 6.47 × 104
7000 2.06 7.55 × 104
8000 2.36 8.63 × 104
9000 2.65 9.71 × 104
1.00 × 104 2.94 1.08 × 105
2.00 × 104 5.89 2.16 × 105
2.75 × 104 8.11 2.97 × 105
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.0326 671
40.0 0.0372 767
50.0 0.0465 959
60.0 0.0558 1150
70.0 0.0651 1340
80.0 0.0745 1530
90.0 0.0838 1730
100 0.0931 1920
200 0.186 3840
300 0.279 5750
400 0.372 7670
500 0.465 9590
600 0.558 1.15 × 104
700 0.651 1.34 × 104
800 0.745 1.53 × 104
900 0.838 1.73 × 104
1000 0.931 1.92 × 104
2000 1.86 3.84 × 104
3000 2.79 5.75 × 104
4000 3.72 7.67 × 104
5000 4.65 9.59 × 104
6000 5.58 1.15 × 105
7000 6.51 1.34 × 105
8000 7.45 1.53 × 105
8720 8.12 1.67 × 105
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.0795 1050
40.0 0.0909 1200
50.0 0.114 1500
60.0 0.136 1800
70.0 0.159 2100
80.0 0.182 2400
90.0 0.204 2700
100 0.227 3000
200 0.454 5990
300 0.682 8990
400 0.909 1.20 × 104
500 1.14 1.50 × 104
600 1.36 1.80 × 104
700 1.59 2.10 × 104
800 1.82 2.40 × 104
900 2.04 2.70 × 104
1000 2.27 3.00 × 104
2000 4.54 5.99 × 104
3000 6.82 8.99 × 104
3570 8.12 1.07 × 105
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.165 1510
40.0 0.188 1730
50.0 0.236 2160
60.0 0.283 2590
70.0 0.330 3020
80.0 0.377 3450
90.0 0.424 3880
100 0.471 4320
200 0.942 8630
300 1.41 1.29 × 104
400 1.88 1.73 × 104
500 2.36 2.16 × 104
600 2.83 2.59 × 104
700 3.30 3.02 × 104
800 3.77 3.45 × 104
900 4.24 3.88 × 104
1000 4.71 4.32 × 104
1720 8.12 7.44 × 104
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.521 2690
40.0 0.596 3070
50.0 0.745 3840
60.0 0.893 4600
70.0 1.04 5370
80.0 1.19 6140
90.0 1.34 6910
100 1.49 7670
200 2.98 1.53 × 104
300 4.47 2.30 × 104
400 5.96 3.07 × 104
500 7.45 3.84 × 104
545 8.12 4.18 × 104
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 1.27 4200
40.0 1.45 4800
50.0 1.82 5990
60.0 2.18 7190
70.0 2.54 8390
80.0 2.91 9590
90.0 3.27 1.08 × 104
100 3.64 1.20 × 104
200 7.27 2.40 × 104
223 8.12 2.68 × 104
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 2.64 6040
40.0 3.02 6910
50.0 3.77 8630
60.0 4.52 1.04 × 104
70.0 5.28 1.21 × 104
80.0 6.03 1.38 × 104
90.0 6.78 1.55 × 104
100 7.54 1.73 × 104
108 8.12 1.86 × 104
Steel I Beam: W8 × 35 (Wide Flange 8 inch tall × 35 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 4.89 8220
40.0 5.59 9400
50.0 6.98 1.17 × 104
58.1 8.12 1.37 × 104
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