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Wide Flange Steel I Beam: W8 × 24
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W8 × 24
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 = 82.8 in4) for the W8 × 24 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 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 1.73 × 10-5 15.5
30.0 2.17 × 10-5 19.4
40.0 2.89 × 10-5 25.9
50.0 3.61 × 10-5 32.3
60.0 4.34 × 10-5 38.8
70.0 5.06 × 10-5 45.3
80.0 5.78 × 10-5 51.7
90.0 6.50 × 10-5 58.2
100 7.23 × 10-5 64.6
200 1.45 × 10-4 129
300 2.17 × 10-4 194
400 2.89 × 10-4 259
500 3.61 × 10-4 323
600 4.34 × 10-4 388
700 5.06 × 10-4 453
800 5.78 × 10-4 517
900 6.50 × 10-4 582
1000 7.23 × 10-4 646
2000 0.00145 1290
3000 0.00217 1940
4000 0.00289 2590
5000 0.00361 3230
6000 0.00434 3880
7000 0.00506 4530
8000 0.00578 5170
9000 0.00650 5820
1.00 × 104 0.00723 6460
2.00 × 104 0.0145 1.29 × 104
3.00 × 104 0.0217 1.94 × 104
4.00 × 104 0.0289 2.59 × 104
5.00 × 104 0.0361 3.23 × 104
6.00 × 104 0.0434 3.88 × 104
7.00 × 104 0.0506 4.53 × 104
8.00 × 104 0.0578 5.17 × 104
9.00 × 104 0.0650 5.82 × 104
1.00 × 105 0.0723 6.46 × 104
2.00 × 105 0.145 1.29 × 105
3.00 × 105 0.217 1.94 × 105
4.00 × 105 0.289 2.59 × 105
4.59 × 105 0.332 2.97 × 105
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 1.34 × 10-4 43.1
30.0 1.67 × 10-4 53.9
40.0 2.23 × 10-4 71.8
50.0 2.79 × 10-4 89.8
60.0 3.35 × 10-4 108
70.0 3.90 × 10-4 126
80.0 4.46 × 10-4 144
90.0 5.02 × 10-4 162
100 5.58 × 10-4 180
200 0.00112 359
300 0.00167 539
400 0.00223 718
500 0.00279 898
600 0.00335 1080
700 0.00390 1260
800 0.00446 1440
900 0.00502 1620
1000 0.00558 1800
2000 0.0112 3590
3000 0.0167 5390
4000 0.0223 7180
5000 0.0279 8980
6000 0.0335 1.08 × 104
7000 0.0390 1.26 × 104
8000 0.0446 1.44 × 104
9000 0.0502 1.62 × 104
1.00 × 104 0.0558 1.80 × 104
2.00 × 104 0.112 3.59 × 104
3.00 × 104 0.167 5.39 × 104
4.00 × 104 0.223 7.18 × 104
5.00 × 104 0.279 8.98 × 104
6.00 × 104 0.335 1.08 × 105
7.00 × 104 0.390 1.26 × 105
8.00 × 104 0.446 1.44 × 105
9.00 × 104 0.502 1.62 × 105
1.00 × 105 0.558 1.80 × 105
1.65 × 105 0.922 2.97 × 105
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 0.00214 172
30.0 0.00268 215
40.0 0.00357 287
50.0 0.00446 359
60.0 0.00535 431
70.0 0.00625 503
80.0 0.00714 575
90.0 0.00803 646
100 0.00892 718
200 0.0178 1440
300 0.0268 2150
400 0.0357 2870
500 0.0446 3590
600 0.0535 4310
700 0.0625 5030
800 0.0714 5750
900 0.0803 6460
1000 0.0892 7180
2000 0.178 1.44 × 104
3000 0.268 2.15 × 104
4000 0.357 2.87 × 104
5000 0.446 3.59 × 104
6000 0.535 4.31 × 104
7000 0.625 5.03 × 104
8000 0.714 5.75 × 104
9000 0.803 6.46 × 104
1.00 × 104 0.892 7.18 × 104
2.00 × 104 1.78 1.44 × 105
3.00 × 104 2.68 2.15 × 105
4.00 × 104 3.57 2.87 × 105
4.14 × 104 3.69 2.97 × 105
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 0.0108 388
30.0 0.0135 485
40.0 0.0181 646
50.0 0.0226 808
60.0 0.0271 970
70.0 0.0316 1130
80.0 0.0361 1290
90.0 0.0406 1450
100 0.0452 1620
200 0.0903 3230
300 0.135 4850
400 0.181 6460
500 0.226 8080
600 0.271 9700
700 0.316 1.13 × 104
800 0.361 1.29 × 104
900 0.406 1.45 × 104
1000 0.452 1.62 × 104
2000 0.903 3.23 × 104
3000 1.35 4.85 × 104
4000 1.81 6.46 × 104
5000 2.26 8.08 × 104
6000 2.71 9.70 × 104
7000 3.16 1.13 × 105
8000 3.61 1.29 × 105
9000 4.06 1.45 × 105
1.00 × 104 4.52 1.62 × 105
1.84 × 104 8.30 2.97 × 105
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 0.0343 690
30.0 0.0428 862
40.0 0.0571 1150
50.0 0.0714 1440
60.0 0.0856 1720
70.0 0.0999 2010
80.0 0.114 2300
90.0 0.128 2590
100 0.143 2870
200 0.285 5750
300 0.428 8620
400 0.571 1.15 × 104
500 0.714 1.44 × 104
600 0.856 1.72 × 104
700 0.999 2.01 × 104
800 1.14 2.30 × 104
900 1.28 2.59 × 104
1000 1.43 2.87 × 104
2000 2.85 5.75 × 104
3000 4.28 8.62 × 104
4000 5.71 1.15 × 105
5000 7.14 1.44 × 105
5560 7.93 1.60 × 105
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 0.0836 1080
30.0 0.105 1350
40.0 0.139 1800
50.0 0.174 2240
60.0 0.209 2690
70.0 0.244 3140
80.0 0.279 3590
90.0 0.314 4040
100 0.349 4490
200 0.697 8980
300 1.05 1.35 × 104
400 1.39 1.80 × 104
500 1.74 2.24 × 104
600 2.09 2.69 × 104
700 2.44 3.14 × 104
800 2.79 3.59 × 104
900 3.14 4.04 × 104
1000 3.49 4.49 × 104
2000 6.97 8.98 × 104
2280 7.93 1.02 × 105
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 0.173 1550
30.0 0.217 1940
40.0 0.289 2590
50.0 0.361 3230
60.0 0.434 3880
70.0 0.506 4530
80.0 0.578 5170
90.0 0.650 5820
100 0.723 6460
200 1.45 1.29 × 104
300 2.17 1.94 × 104
400 2.89 2.59 × 104
500 3.61 3.23 × 104
600 4.34 3.88 × 104
700 5.06 4.53 × 104
800 5.78 5.17 × 104
900 6.50 5.82 × 104
1000 7.23 6.46 × 104
1100 7.93 7.09 × 104
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 0.548 2760
30.0 0.685 3450
40.0 0.914 4600
50.0 1.14 5750
60.0 1.37 6900
70.0 1.60 8040
80.0 1.83 9190
90.0 2.06 1.03 × 104
100 2.28 1.15 × 104
200 4.57 2.30 × 104
300 6.85 3.45 × 104
347 7.93 3.99 × 104
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 1.34 4310
30.0 1.67 5390
40.0 2.23 7180
50.0 2.79 8980
60.0 3.35 1.08 × 104
70.0 3.90 1.26 × 104
80.0 4.46 1.44 × 104
90.0 5.02 1.62 × 104
100 5.58 1.80 × 104
142 7.93 2.55 × 104
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 2.78 6210
30.0 3.47 7760
40.0 4.63 1.03 × 104
50.0 5.78 1.29 × 104
60.0 6.94 1.55 × 104
68.6 7.93 1.77 × 104
Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
24.0 5.14 8450
30.0 6.43 1.06 × 104
37.0 7.93 1.30 × 104
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