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Wide Flange Steel I Beam: W6 × 16
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W6 × 16
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in two equal spans, we compute the displacement at the middle of each span w_mid and the maximum normal stress stress_max occuring at the center support of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 32.1 in4) for the W6 × 16 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
L = 80 ft
   
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 1.19 × 10-5 21.1
20.0 1.49 × 10-5 26.4
30.0 2.24 × 10-5 39.6
40.0 2.98 × 10-5 52.8
50.0 3.73 × 10-5 66.0
60.0 4.47 × 10-5 79.2
70.0 5.22 × 10-5 92.4
80.0 5.97 × 10-5 106
90.0 6.71 × 10-5 119
100 7.46 × 10-5 132
200 1.49 × 10-4 264
300 2.24 × 10-4 396
400 2.98 × 10-4 528
500 3.73 × 10-4 660
600 4.47 × 10-4 792
700 5.22 × 10-4 924
800 5.97 × 10-4 1060
900 6.71 × 10-4 1190
1000 7.46 × 10-4 1320
2000 0.00149 2640
3000 0.00224 3960
4000 0.00298 5280
5000 0.00373 6600
6000 0.00447 7920
7000 0.00522 9240
8000 0.00597 1.06 × 104
9000 0.00671 1.19 × 104
1.00 × 104 0.00746 1.32 × 104
2.00 × 104 0.0149 2.64 × 104
3.00 × 104 0.0224 3.96 × 104
4.00 × 104 0.0298 5.28 × 104
5.00 × 104 0.0373 6.60 × 104
6.00 × 104 0.0447 7.92 × 104
7.00 × 104 0.0522 9.24 × 104
8.00 × 104 0.0597 1.06 × 105
9.00 × 104 0.0671 1.19 × 105
1.00 × 105 0.0746 1.32 × 105
2.00 × 105 0.149 2.64 × 105
2.25 × 105 0.168 2.97 × 105
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 9.21 × 10-5 58.7
20.0 1.15 × 10-4 73.4
30.0 1.73 × 10-4 110
40.0 2.30 × 10-4 147
50.0 2.88 × 10-4 183
60.0 3.45 × 10-4 220
70.0 4.03 × 10-4 257
80.0 4.60 × 10-4 293
90.0 5.18 × 10-4 330
100 5.75 × 10-4 367
200 0.00115 734
300 0.00173 1100
400 0.00230 1470
500 0.00288 1830
600 0.00345 2200
700 0.00403 2570
800 0.00460 2930
900 0.00518 3300
1000 0.00575 3670
2000 0.0115 7340
3000 0.0173 1.10 × 104
4000 0.0230 1.47 × 104
5000 0.0288 1.83 × 104
6000 0.0345 2.20 × 104
7000 0.0403 2.57 × 104
8000 0.0460 2.93 × 104
9000 0.0518 3.30 × 104
1.00 × 104 0.0575 3.67 × 104
2.00 × 104 0.115 7.34 × 104
3.00 × 104 0.173 1.10 × 105
4.00 × 104 0.230 1.47 × 105
5.00 × 104 0.288 1.83 × 105
6.00 × 104 0.345 2.20 × 105
7.00 × 104 0.403 2.57 × 105
8.00 × 104 0.460 2.93 × 105
8.10 × 104 0.466 2.97 × 105
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 0.00147 235
20.0 0.00184 293
30.0 0.00276 440
40.0 0.00368 587
50.0 0.00460 734
60.0 0.00552 880
70.0 0.00644 1030
80.0 0.00736 1170
90.0 0.00828 1320
100 0.00921 1470
200 0.0184 2930
300 0.0276 4400
400 0.0368 5870
500 0.0460 7340
600 0.0552 8800
700 0.0644 1.03 × 104
800 0.0736 1.17 × 104
900 0.0828 1.32 × 104
1000 0.0921 1.47 × 104
2000 0.184 2.93 × 104
3000 0.276 4.40 × 104
4000 0.368 5.87 × 104
5000 0.460 7.34 × 104
6000 0.552 8.80 × 104
7000 0.644 1.03 × 105
8000 0.736 1.17 × 105
9000 0.828 1.32 × 105
1.00 × 104 0.921 1.47 × 105
2.00 × 104 1.84 2.93 × 105
2.02 × 104 1.86 2.97 × 105
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 0.00746 528
20.0 0.00932 660
30.0 0.0140 990
40.0 0.0186 1320
50.0 0.0233 1650
60.0 0.0280 1980
70.0 0.0326 2310
80.0 0.0373 2640
90.0 0.0419 2970
100 0.0466 3300
200 0.0932 6600
300 0.140 9900
400 0.186 1.32 × 104
500 0.233 1.65 × 104
600 0.280 1.98 × 104
700 0.326 2.31 × 104
800 0.373 2.64 × 104
900 0.419 2.97 × 104
1000 0.466 3.30 × 104
2000 0.932 6.60 × 104
3000 1.40 9.90 × 104
4000 1.86 1.32 × 105
5000 2.33 1.65 × 105
6000 2.80 1.98 × 105
7000 3.26 2.31 × 105
8000 3.73 2.64 × 105
9000 4.19 2.97 × 105
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 0.0236 939
20.0 0.0295 1170
30.0 0.0442 1760
40.0 0.0589 2350
50.0 0.0736 2930
60.0 0.0884 3520
70.0 0.103 4110
80.0 0.118 4700
90.0 0.133 5280
100 0.147 5870
200 0.295 1.17 × 104
300 0.442 1.76 × 104
400 0.589 2.35 × 104
500 0.736 2.93 × 104
600 0.884 3.52 × 104
700 1.03 4.11 × 104
800 1.18 4.70 × 104
900 1.33 5.28 × 104
1000 1.47 5.87 × 104
2000 2.95 1.17 × 105
3000 4.42 1.76 × 105
4000 5.89 2.35 × 105
4260 6.28 2.50 × 105
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 0.0575 1470
20.0 0.0719 1830
30.0 0.108 2750
40.0 0.144 3670
50.0 0.180 4590
60.0 0.216 5500
70.0 0.252 6420
80.0 0.288 7340
90.0 0.324 8250
100 0.360 9170
200 0.719 1.83 × 104
300 1.08 2.75 × 104
400 1.44 3.67 × 104
500 1.80 4.59 × 104
600 2.16 5.50 × 104
700 2.52 6.42 × 104
800 2.88 7.34 × 104
900 3.24 8.25 × 104
1000 3.60 9.17 × 104
1750 6.28 1.60 × 105
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 0.119 2110
20.0 0.149 2640
30.0 0.224 3960
40.0 0.298 5280
50.0 0.373 6600
60.0 0.447 7920
70.0 0.522 9240
80.0 0.597 1.06 × 104
90.0 0.671 1.19 × 104
100 0.746 1.32 × 104
200 1.49 2.64 × 104
300 2.24 3.96 × 104
400 2.98 5.28 × 104
500 3.73 6.60 × 104
600 4.47 7.92 × 104
700 5.22 9.24 × 104
800 5.97 1.06 × 105
842 6.28 1.11 × 105
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 0.377 3760
20.0 0.471 4700
30.0 0.707 7040
40.0 0.943 9390
50.0 1.18 1.17 × 104
60.0 1.41 1.41 × 104
70.0 1.65 1.64 × 104
80.0 1.89 1.88 × 104
90.0 2.12 2.11 × 104
100 2.36 2.35 × 104
200 4.71 4.70 × 104
266 6.28 6.26 × 104
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 0.921 5870
20.0 1.15 7340
30.0 1.73 1.10 × 104
40.0 2.30 1.47 × 104
50.0 2.88 1.83 × 104
60.0 3.45 2.20 × 104
70.0 4.03 2.57 × 104
80.0 4.60 2.93 × 104
90.0 5.18 3.30 × 104
100 5.75 3.67 × 104
109 6.28 4.00 × 104
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 1.91 8450
20.0 2.39 1.06 × 104
30.0 3.58 1.58 × 104
40.0 4.77 2.11 × 104
50.0 5.97 2.64 × 104
52.6 6.28 2.78 × 104
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 3.54 1.15 × 104
20.0 4.42 1.44 × 104
28.4 6.28 2.04 × 104
Steel I Beam: W6 × 16 (Wide Flange 6 inch tall × 16 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
16.0 6.03 1.50 × 104
16.7 6.28 1.56 × 104
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