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Wide Flange Steel I Beam: W16 × 36
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W16 × 36
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 = 448 in4) for the W16 × 36 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
L = 90 ft
L = 100 ft
L = 125 ft
L = 150 ft
   
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 1.92 × 10-6 8.60
40.0 2.14 × 10-6 9.56
50.0 2.67 × 10-6 11.9
60.0 3.21 × 10-6 14.3
70.0 3.74 × 10-6 16.7
80.0 4.27 × 10-6 19.1
90.0 4.81 × 10-6 21.5
100 5.34 × 10-6 23.9
200 1.07 × 10-5 47.8
300 1.60 × 10-5 71.7
400 2.14 × 10-5 95.6
500 2.67 × 10-5 119
600 3.21 × 10-5 143
700 3.74 × 10-5 167
800 4.27 × 10-5 191
900 4.81 × 10-5 215
1000 5.34 × 10-5 239
2000 1.07 × 10-4 478
3000 1.60 × 10-4 717
4000 2.14 × 10-4 956
5000 2.67 × 10-4 1190
6000 3.21 × 10-4 1430
7000 3.74 × 10-4 1670
8000 4.27 × 10-4 1910
9000 4.81 × 10-4 2150
1.00 × 104 5.34 × 10-4 2390
2.00 × 104 0.00107 4780
3.00 × 104 0.00160 7170
4.00 × 104 0.00214 9560
5.00 × 104 0.00267 1.19 × 104
6.00 × 104 0.00321 1.43 × 104
7.00 × 104 0.00374 1.67 × 104
8.00 × 104 0.00427 1.91 × 104
9.00 × 104 0.00481 2.15 × 104
1.00 × 105 0.00534 2.39 × 104
2.00 × 105 0.0107 4.78 × 104
3.00 × 105 0.0160 7.17 × 104
4.00 × 105 0.0214 9.56 × 104
5.00 × 105 0.0267 1.19 × 105
6.00 × 105 0.0321 1.43 × 105
7.00 × 105 0.0374 1.67 × 105
8.00 × 105 0.0427 1.91 × 105
9.00 × 105 0.0481 2.15 × 105
1.00 × 106 0.0534 2.39 × 105
1.24 × 106 0.0664 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 1.48 × 10-5 23.9
40.0 1.65 × 10-5 26.6
50.0 2.06 × 10-5 33.2
60.0 2.47 × 10-5 39.8
70.0 2.89 × 10-5 46.5
80.0 3.30 × 10-5 53.1
90.0 3.71 × 10-5 59.7
100 4.12 × 10-5 66.4
200 8.24 × 10-5 133
300 1.24 × 10-4 199
400 1.65 × 10-4 266
500 2.06 × 10-4 332
600 2.47 × 10-4 398
700 2.89 × 10-4 465
800 3.30 × 10-4 531
900 3.71 × 10-4 597
1000 4.12 × 10-4 664
2000 8.24 × 10-4 1330
3000 0.00124 1990
4000 0.00165 2660
5000 0.00206 3320
6000 0.00247 3980
7000 0.00289 4650
8000 0.00330 5310
9000 0.00371 5970
1.00 × 104 0.00412 6640
2.00 × 104 0.00824 1.33 × 104
3.00 × 104 0.0124 1.99 × 104
4.00 × 104 0.0165 2.66 × 104
5.00 × 104 0.0206 3.32 × 104
6.00 × 104 0.0247 3.98 × 104
7.00 × 104 0.0289 4.65 × 104
8.00 × 104 0.0330 5.31 × 104
9.00 × 104 0.0371 5.97 × 104
1.00 × 105 0.0412 6.64 × 104
2.00 × 105 0.0824 1.33 × 105
3.00 × 105 0.124 1.99 × 105
4.00 × 105 0.165 2.66 × 105
4.47 × 105 0.184 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 2.37 × 10-4 95.6
40.0 2.64 × 10-4 106
50.0 3.30 × 10-4 133
60.0 3.96 × 10-4 159
70.0 4.62 × 10-4 186
80.0 5.28 × 10-4 212
90.0 5.94 × 10-4 239
100 6.60 × 10-4 266
200 0.00132 531
300 0.00198 797
400 0.00264 1060
500 0.00330 1330
600 0.00396 1590
700 0.00462 1860
800 0.00528 2120
900 0.00594 2390
1000 0.00660 2660
2000 0.0132 5310
3000 0.0198 7970
4000 0.0264 1.06 × 104
5000 0.0330 1.33 × 104
6000 0.0396 1.59 × 104
7000 0.0462 1.86 × 104
8000 0.0528 2.12 × 104
9000 0.0594 2.39 × 104
1.00 × 104 0.0660 2.66 × 104
2.00 × 104 0.132 5.31 × 104
3.00 × 104 0.198 7.97 × 104
4.00 × 104 0.264 1.06 × 105
5.00 × 104 0.330 1.33 × 105
6.00 × 104 0.396 1.59 × 105
7.00 × 104 0.462 1.86 × 105
8.00 × 104 0.528 2.12 × 105
9.00 × 104 0.594 2.39 × 105
1.00 × 105 0.660 2.66 × 105
1.12 × 105 0.738 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.00120 215
40.0 0.00134 239
50.0 0.00167 299
60.0 0.00200 358
70.0 0.00234 418
80.0 0.00267 478
90.0 0.00301 538
100 0.00334 597
200 0.00668 1190
300 0.0100 1790
400 0.0134 2390
500 0.0167 2990
600 0.0200 3580
700 0.0234 4180
800 0.0267 4780
900 0.0301 5380
1000 0.0334 5970
2000 0.0668 1.19 × 104
3000 0.100 1.79 × 104
4000 0.134 2.39 × 104
5000 0.167 2.99 × 104
6000 0.200 3.58 × 104
7000 0.234 4.18 × 104
8000 0.267 4.78 × 104
9000 0.301 5.38 × 104
1.00 × 104 0.334 5.97 × 104
2.00 × 104 0.668 1.19 × 105
3.00 × 104 1.00 1.79 × 105
4.00 × 104 1.34 2.39 × 105
4.97 × 104 1.66 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.00380 382
40.0 0.00422 425
50.0 0.00528 531
60.0 0.00633 637
70.0 0.00739 743
80.0 0.00844 850
90.0 0.00950 956
100 0.0106 1060
200 0.0211 2120
300 0.0317 3190
400 0.0422 4250
500 0.0528 5310
600 0.0633 6370
700 0.0739 7430
800 0.0844 8500
900 0.0950 9560
1000 0.106 1.06 × 104
2000 0.211 2.12 × 104
3000 0.317 3.19 × 104
4000 0.422 4.25 × 104
5000 0.528 5.31 × 104
6000 0.633 6.37 × 104
7000 0.739 7.43 × 104
8000 0.844 8.50 × 104
9000 0.950 9.56 × 104
1.00 × 104 1.06 1.06 × 105
2.00 × 104 2.11 2.12 × 105
2.80 × 104 2.95 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.00928 597
40.0 0.0103 664
50.0 0.0129 830
60.0 0.0155 996
70.0 0.0180 1160
80.0 0.0206 1330
90.0 0.0232 1490
100 0.0258 1660
200 0.0515 3320
300 0.0773 4980
400 0.103 6640
500 0.129 8300
600 0.155 9960
700 0.180 1.16 × 104
800 0.206 1.33 × 104
900 0.232 1.49 × 104
1000 0.258 1.66 × 104
2000 0.515 3.32 × 104
3000 0.773 4.98 × 104
4000 1.03 6.64 × 104
5000 1.29 8.30 × 104
6000 1.55 9.96 × 104
7000 1.80 1.16 × 105
8000 2.06 1.33 × 105
9000 2.32 1.49 × 105
1.00 × 104 2.58 1.66 × 105
1.79 × 104 4.61 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.0192 860
40.0 0.0214 956
50.0 0.0267 1190
60.0 0.0321 1430
70.0 0.0374 1670
80.0 0.0427 1910
90.0 0.0481 2150
100 0.0534 2390
200 0.107 4780
300 0.160 7170
400 0.214 9560
500 0.267 1.19 × 104
600 0.321 1.43 × 104
700 0.374 1.67 × 104
800 0.427 1.91 × 104
900 0.481 2.15 × 104
1000 0.534 2.39 × 104
2000 1.07 4.78 × 104
3000 1.60 7.17 × 104
4000 2.14 9.56 × 104
5000 2.67 1.19 × 105
6000 3.21 1.43 × 105
7000 3.74 1.67 × 105
8000 4.27 1.91 × 105
9000 4.81 2.15 × 105
1.00 × 104 5.34 2.39 × 105
1.24 × 104 6.64 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.0608 1530
40.0 0.0675 1700
50.0 0.0844 2120
60.0 0.101 2550
70.0 0.118 2970
80.0 0.135 3400
90.0 0.152 3820
100 0.169 4250
200 0.338 8500
300 0.507 1.27 × 104
400 0.675 1.70 × 104
500 0.844 2.12 × 104
600 1.01 2.55 × 104
700 1.18 2.97 × 104
800 1.35 3.40 × 104
900 1.52 3.82 × 104
1000 1.69 4.25 × 104
2000 3.38 8.50 × 104
3000 5.07 1.27 × 105
4000 6.75 1.70 × 105
5000 8.44 2.12 × 105
6000 10.1 2.55 × 105
6990 11.8 2.97 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.148 2390
40.0 0.165 2660
50.0 0.206 3320
60.0 0.247 3980
70.0 0.289 4650
80.0 0.330 5310
90.0 0.371 5970
100 0.412 6640
200 0.824 1.33 × 104
300 1.24 1.99 × 104
400 1.65 2.66 × 104
500 2.06 3.32 × 104
600 2.47 3.98 × 104
700 2.89 4.65 × 104
800 3.30 5.31 × 104
900 3.71 5.97 × 104
1000 4.12 6.64 × 104
2000 8.24 1.33 × 105
3000 12.4 1.99 × 105
3850 15.9 2.55 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.308 3440
40.0 0.342 3820
50.0 0.427 4780
60.0 0.513 5740
70.0 0.598 6690
80.0 0.684 7650
90.0 0.769 8600
100 0.855 9560
200 1.71 1.91 × 104
300 2.56 2.87 × 104
400 3.42 3.82 × 104
500 4.27 4.78 × 104
600 5.13 5.74 × 104
700 5.98 6.69 × 104
800 6.84 7.65 × 104
900 7.69 8.60 × 104
1000 8.55 9.56 × 104
1860 15.9 1.77 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.570 4680
40.0 0.633 5200
50.0 0.792 6510
60.0 0.950 7810
70.0 1.11 9110
80.0 1.27 1.04 × 104
90.0 1.43 1.17 × 104
100 1.58 1.30 × 104
200 3.17 2.60 × 104
300 4.75 3.90 × 104
400 6.33 5.20 × 104
500 7.92 6.51 × 104
600 9.50 7.81 × 104
700 11.1 9.11 × 104
800 12.7 1.04 × 105
900 14.3 1.17 × 105
1000 15.8 1.30 × 105
1000 15.9 1.30 × 105
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 0.973 6120
40.0 1.08 6800
50.0 1.35 8500
60.0 1.62 1.02 × 104
70.0 1.89 1.19 × 104
80.0 2.16 1.36 × 104
90.0 2.43 1.53 × 104
100 2.70 1.70 × 104
200 5.40 3.40 × 104
300 8.10 5.10 × 104
400 10.8 6.80 × 104
500 13.5 8.50 × 104
587 15.9 9.98 × 104
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 1.56 7740
40.0 1.73 8600
50.0 2.16 1.08 × 104
60.0 2.60 1.29 × 104
70.0 3.03 1.51 × 104
80.0 3.46 1.72 × 104
90.0 3.89 1.94 × 104
100 4.33 2.15 × 104
200 8.65 4.30 × 104
300 13.0 6.45 × 104
366 15.9 7.88 × 104
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 2.37 9560
40.0 2.64 1.06 × 104
50.0 3.30 1.33 × 104
60.0 3.96 1.59 × 104
70.0 4.62 1.86 × 104
80.0 5.28 2.12 × 104
90.0 5.94 2.39 × 104
100 6.60 2.66 × 104
200 13.2 5.31 × 104
240 15.9 6.38 × 104
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 5.80 1.49 × 104
40.0 6.44 1.66 × 104
50.0 8.05 2.07 × 104
60.0 9.66 2.49 × 104
70.0 11.3 2.90 × 104
80.0 12.9 3.32 × 104
90.0 14.5 3.73 × 104
98.5 15.9 4.09 × 104
Steel I Beam: W16 × 36 (Wide Flange 16 inch tall × 36 lbf/ft)
L = 150 ft
P (lbf/ft) w_max (in) stress_max (psi)
36.0 12.0 2.15 × 104
40.0 13.4 2.39 × 104
47.5 15.9 2.84 × 104
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