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Wide Flange Steel I Beam: W6 × 15
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W6 × 15
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 = 29.1 in4) for the W6 × 15 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
   
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 3.08 × 10-5 20.8
20.0 4.11 × 10-5 27.8
30.0 6.17 × 10-5 41.7
40.0 8.22 × 10-5 55.6
50.0 1.03 × 10-4 69.5
60.0 1.23 × 10-4 83.4
70.0 1.44 × 10-4 97.3
80.0 1.64 × 10-4 111
90.0 1.85 × 10-4 125
100 2.06 × 10-4 139
200 4.11 × 10-4 278
300 6.17 × 10-4 417
400 8.22 × 10-4 556
500 0.00103 695
600 0.00123 834
700 0.00144 973
800 0.00164 1110
900 0.00185 1250
1000 0.00206 1390
2000 0.00411 2780
3000 0.00617 4170
4000 0.00822 5560
5000 0.0103 6950
6000 0.0123 8340
7000 0.0144 9730
8000 0.0164 1.11 × 104
9000 0.0185 1.25 × 104
1.00 × 104 0.0206 1.39 × 104
2.00 × 104 0.0411 2.78 × 104
3.00 × 104 0.0617 4.17 × 104
4.00 × 104 0.0822 5.56 × 104
5.00 × 104 0.103 6.95 × 104
6.00 × 104 0.123 8.34 × 104
7.00 × 104 0.144 9.73 × 104
8.00 × 104 0.164 1.11 × 105
9.00 × 104 0.185 1.25 × 105
1.00 × 105 0.206 1.39 × 105
2.00 × 105 0.411 2.78 × 105
2.14 × 105 0.440 2.97 × 105
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 2.38 × 10-4 57.9
20.0 3.17 × 10-4 77.2
30.0 4.76 × 10-4 116
40.0 6.35 × 10-4 154
50.0 7.93 × 10-4 193
60.0 9.52 × 10-4 232
70.0 0.00111 270
80.0 0.00127 309
90.0 0.00143 347
100 0.00159 386
200 0.00317 772
300 0.00476 1160
400 0.00635 1540
500 0.00793 1930
600 0.00952 2320
700 0.0111 2700
800 0.0127 3090
900 0.0143 3470
1000 0.0159 3860
2000 0.0317 7720
3000 0.0476 1.16 × 104
4000 0.0635 1.54 × 104
5000 0.0793 1.93 × 104
6000 0.0952 2.32 × 104
7000 0.111 2.70 × 104
8000 0.127 3.09 × 104
9000 0.143 3.47 × 104
1.00 × 104 0.159 3.86 × 104
2.00 × 104 0.317 7.72 × 104
3.00 × 104 0.476 1.16 × 105
4.00 × 104 0.635 1.54 × 105
5.00 × 104 0.793 1.93 × 105
6.00 × 104 0.952 2.32 × 105
7.00 × 104 1.11 2.70 × 105
7.70 × 104 1.22 2.97 × 105
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.00381 232
20.0 0.00508 309
30.0 0.00762 463
40.0 0.0102 618
50.0 0.0127 772
60.0 0.0152 926
70.0 0.0178 1080
80.0 0.0203 1240
90.0 0.0228 1390
100 0.0254 1540
200 0.0508 3090
300 0.0762 4630
400 0.102 6180
500 0.127 7720
600 0.152 9260
700 0.178 1.08 × 104
800 0.203 1.24 × 104
900 0.228 1.39 × 104
1000 0.254 1.54 × 104
2000 0.508 3.09 × 104
3000 0.762 4.63 × 104
4000 1.02 6.18 × 104
5000 1.27 7.72 × 104
6000 1.52 9.26 × 104
7000 1.78 1.08 × 105
8000 2.03 1.24 × 105
9000 2.28 1.39 × 105
1.00 × 104 2.54 1.54 × 105
1.92 × 104 4.88 2.97 × 105
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.0193 521
20.0 0.0257 695
30.0 0.0386 1040
40.0 0.0514 1390
50.0 0.0643 1740
60.0 0.0771 2080
70.0 0.0900 2430
80.0 0.103 2780
90.0 0.116 3130
100 0.129 3470
200 0.257 6950
300 0.386 1.04 × 104
400 0.514 1.39 × 104
500 0.643 1.74 × 104
600 0.771 2.08 × 104
700 0.900 2.43 × 104
800 1.03 2.78 × 104
900 1.16 3.13 × 104
1000 1.29 3.47 × 104
2000 2.57 6.95 × 104
3000 3.86 1.04 × 105
4000 5.14 1.39 × 105
4660 5.99 1.62 × 105
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.0609 926
20.0 0.0812 1240
30.0 0.122 1850
40.0 0.162 2470
50.0 0.203 3090
60.0 0.244 3710
70.0 0.284 4320
80.0 0.325 4940
90.0 0.366 5560
100 0.406 6180
200 0.812 1.24 × 104
300 1.22 1.85 × 104
400 1.62 2.47 × 104
500 2.03 3.09 × 104
600 2.44 3.71 × 104
700 2.84 4.32 × 104
800 3.25 4.94 × 104
900 3.66 5.56 × 104
1000 4.06 6.18 × 104
1470 5.99 9.11 × 104
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.149 1450
20.0 0.198 1930
30.0 0.297 2890
40.0 0.397 3860
50.0 0.496 4820
60.0 0.595 5790
70.0 0.694 6750
80.0 0.793 7720
90.0 0.892 8680
100 0.992 9650
200 1.98 1.93 × 104
300 2.97 2.89 × 104
400 3.97 3.86 × 104
500 4.96 4.82 × 104
600 5.95 5.79 × 104
604 5.99 5.83 × 104
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.308 2080
20.0 0.411 2780
30.0 0.617 4170
40.0 0.822 5560
50.0 1.03 6950
60.0 1.23 8340
70.0 1.44 9730
80.0 1.64 1.11 × 104
90.0 1.85 1.25 × 104
100 2.06 1.39 × 104
200 4.11 2.78 × 104
291 5.99 4.05 × 104
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 0.975 3710
20.0 1.30 4940
30.0 1.95 7410
40.0 2.60 9880
50.0 3.25 1.24 × 104
60.0 3.90 1.48 × 104
70.0 4.55 1.73 × 104
80.0 5.20 1.98 × 104
90.0 5.85 2.22 × 104
92.2 5.99 2.28 × 104
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 2.38 5790
20.0 3.17 7720
30.0 4.76 1.16 × 104
37.8 5.99 1.46 × 104
Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
15.0 4.93 8340
18.2 5.99 1.01 × 104
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