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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W16 × 89
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 = 1300 in4) for the W16 × 89 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
   
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 4.10 × 10-6 7.74
90.0 4.14 × 10-6 7.83
100 4.60 × 10-6 8.70
200 9.21 × 10-6 17.4
300 1.38 × 10-5 26.1
400 1.84 × 10-5 34.8
500 2.30 × 10-5 43.5
600 2.76 × 10-5 52.2
700 3.22 × 10-5 60.9
800 3.68 × 10-5 69.6
900 4.14 × 10-5 78.3
1000 4.60 × 10-5 87.0
2000 9.21 × 10-5 174
3000 1.38 × 10-4 261
4000 1.84 × 10-4 348
5000 2.30 × 10-4 435
6000 2.76 × 10-4 522
7000 3.22 × 10-4 609
8000 3.68 × 10-4 696
9000 4.14 × 10-4 783
1.00 × 104 4.60 × 10-4 870
2.00 × 104 9.21 × 10-4 1740
3.00 × 104 0.00138 2610
4.00 × 104 0.00184 3480
5.00 × 104 0.00230 4350
6.00 × 104 0.00276 5220
7.00 × 104 0.00322 6090
8.00 × 104 0.00368 6960
9.00 × 104 0.00414 7830
1.00 × 105 0.00460 8700
2.00 × 105 0.00921 1.74 × 104
3.00 × 105 0.0138 2.61 × 104
4.00 × 105 0.0184 3.48 × 104
5.00 × 105 0.0230 4.35 × 104
6.00 × 105 0.0276 5.22 × 104
7.00 × 105 0.0322 6.09 × 104
8.00 × 105 0.0368 6.96 × 104
9.00 × 105 0.0414 7.83 × 104
1.00 × 106 0.0460 8.70 × 104
2.00 × 106 0.0921 1.74 × 105
3.00 × 106 0.138 2.61 × 105
3.42 × 106 0.157 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 3.16 × 10-5 21.5
90.0 3.20 × 10-5 21.7
100 3.55 × 10-5 24.2
200 7.10 × 10-5 48.3
300 1.07 × 10-4 72.5
400 1.42 × 10-4 96.6
500 1.78 × 10-4 121
600 2.13 × 10-4 145
700 2.49 × 10-4 169
800 2.84 × 10-4 193
900 3.20 × 10-4 217
1000 3.55 × 10-4 242
2000 7.10 × 10-4 483
3000 0.00107 725
4000 0.00142 966
5000 0.00178 1210
6000 0.00213 1450
7000 0.00249 1690
8000 0.00284 1930
9000 0.00320 2170
1.00 × 104 0.00355 2420
2.00 × 104 0.00710 4830
3.00 × 104 0.0107 7250
4.00 × 104 0.0142 9660
5.00 × 104 0.0178 1.21 × 104
6.00 × 104 0.0213 1.45 × 104
7.00 × 104 0.0249 1.69 × 104
8.00 × 104 0.0284 1.93 × 104
9.00 × 104 0.0320 2.17 × 104
1.00 × 105 0.0355 2.42 × 104
2.00 × 105 0.0710 4.83 × 104
3.00 × 105 0.107 7.25 × 104
4.00 × 105 0.142 9.66 × 104
5.00 × 105 0.178 1.21 × 105
6.00 × 105 0.213 1.45 × 105
7.00 × 105 0.249 1.69 × 105
8.00 × 105 0.284 1.93 × 105
9.00 × 105 0.320 2.17 × 105
1.00 × 106 0.355 2.42 × 105
1.23 × 106 0.437 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 5.06 × 10-4 86.0
90.0 5.11 × 10-4 87.0
100 5.68 × 10-4 96.6
200 0.00114 193
300 0.00170 290
400 0.00227 387
500 0.00284 483
600 0.00341 580
700 0.00398 676
800 0.00455 773
900 0.00511 870
1000 0.00568 966
2000 0.0114 1930
3000 0.0170 2900
4000 0.0227 3870
5000 0.0284 4830
6000 0.0341 5800
7000 0.0398 6760
8000 0.0455 7730
9000 0.0511 8700
1.00 × 104 0.0568 9660
2.00 × 104 0.114 1.93 × 104
3.00 × 104 0.170 2.90 × 104
4.00 × 104 0.227 3.87 × 104
5.00 × 104 0.284 4.83 × 104
6.00 × 104 0.341 5.80 × 104
7.00 × 104 0.398 6.76 × 104
8.00 × 104 0.455 7.73 × 104
9.00 × 104 0.511 8.70 × 104
1.00 × 105 0.568 9.66 × 104
2.00 × 105 1.14 1.93 × 105
3.00 × 105 1.70 2.90 × 105
3.07 × 105 1.75 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 0.00256 194
90.0 0.00259 196
100 0.00288 217
200 0.00575 435
300 0.00863 652
400 0.0115 870
500 0.0144 1090
600 0.0173 1300
700 0.0201 1520
800 0.0230 1740
900 0.0259 1960
1000 0.0288 2170
2000 0.0575 4350
3000 0.0863 6520
4000 0.115 8700
5000 0.144 1.09 × 104
6000 0.173 1.30 × 104
7000 0.201 1.52 × 104
8000 0.230 1.74 × 104
9000 0.259 1.96 × 104
1.00 × 104 0.288 2.17 × 104
2.00 × 104 0.575 4.35 × 104
3.00 × 104 0.863 6.52 × 104
4.00 × 104 1.15 8.70 × 104
5.00 × 104 1.44 1.09 × 105
6.00 × 104 1.73 1.30 × 105
7.00 × 104 2.01 1.52 × 105
8.00 × 104 2.30 1.74 × 105
9.00 × 104 2.59 1.96 × 105
1.00 × 105 2.88 2.17 × 105
1.37 × 105 3.93 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 0.00809 344
90.0 0.00818 348
100 0.00909 387
200 0.0182 773
300 0.0273 1160
400 0.0364 1550
500 0.0455 1930
600 0.0546 2320
700 0.0636 2710
800 0.0727 3090
900 0.0818 3480
1000 0.0909 3870
2000 0.182 7730
3000 0.273 1.16 × 104
4000 0.364 1.55 × 104
5000 0.455 1.93 × 104
6000 0.546 2.32 × 104
7000 0.636 2.71 × 104
8000 0.727 3.09 × 104
9000 0.818 3.48 × 104
1.00 × 104 0.909 3.87 × 104
2.00 × 104 1.82 7.73 × 104
3.00 × 104 2.73 1.16 × 105
4.00 × 104 3.64 1.55 × 105
5.00 × 104 4.55 1.93 × 105
6.00 × 104 5.46 2.32 × 105
7.00 × 104 6.36 2.71 × 105
7.68 × 104 6.99 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 0.0198 538
90.0 0.0200 544
100 0.0222 604
200 0.0444 1210
300 0.0666 1810
400 0.0888 2420
500 0.111 3020
600 0.133 3620
700 0.155 4230
800 0.178 4830
900 0.200 5440
1000 0.222 6040
2000 0.444 1.21 × 104
3000 0.666 1.81 × 104
4000 0.888 2.42 × 104
5000 1.11 3.02 × 104
6000 1.33 3.62 × 104
7000 1.55 4.23 × 104
8000 1.78 4.83 × 104
9000 2.00 5.44 × 104
1.00 × 104 2.22 6.04 × 104
2.00 × 104 4.44 1.21 × 105
3.00 × 104 6.66 1.81 × 105
4.00 × 104 8.88 2.42 × 105
4.92 × 104 10.9 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 0.0410 774
90.0 0.0414 783
100 0.0460 870
200 0.0921 1740
300 0.138 2610
400 0.184 3480
500 0.230 4350
600 0.276 5220
700 0.322 6090
800 0.368 6960
900 0.414 7830
1000 0.460 8700
2000 0.921 1.74 × 104
3000 1.38 2.61 × 104
4000 1.84 3.48 × 104
5000 2.30 4.35 × 104
6000 2.76 5.22 × 104
7000 3.22 6.09 × 104
8000 3.68 6.96 × 104
9000 4.14 7.83 × 104
1.00 × 104 4.60 8.70 × 104
2.00 × 104 9.21 1.74 × 105
3.00 × 104 13.8 2.61 × 105
3.42 × 104 15.7 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 0.129 1380
90.0 0.131 1390
100 0.145 1550
200 0.291 3090
300 0.436 4640
400 0.582 6180
500 0.727 7730
600 0.873 9280
700 1.02 1.08 × 104
800 1.16 1.24 × 104
900 1.31 1.39 × 104
1000 1.45 1.55 × 104
2000 2.91 3.09 × 104
3000 4.36 4.64 × 104
4000 5.82 6.18 × 104
5000 7.27 7.73 × 104
6000 8.73 9.28 × 104
7000 10.2 1.08 × 105
8000 11.6 1.24 × 105
9000 13.1 1.39 × 105
1.00 × 104 14.5 1.55 × 105
1.92 × 104 27.9 2.97 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 0.316 2150
90.0 0.320 2170
100 0.355 2420
200 0.710 4830
300 1.07 7250
400 1.42 9660
500 1.78 1.21 × 104
600 2.13 1.45 × 104
700 2.49 1.69 × 104
800 2.84 1.93 × 104
900 3.20 2.17 × 104
1000 3.55 2.42 × 104
2000 7.10 4.83 × 104
3000 10.7 7.25 × 104
4000 14.2 9.66 × 104
4720 16.8 1.14 × 105
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 0.655 3100
90.0 0.663 3130
100 0.736 3480
200 1.47 6960
300 2.21 1.04 × 104
400 2.95 1.39 × 104
500 3.68 1.74 × 104
600 4.42 2.09 × 104
700 5.16 2.44 × 104
800 5.89 2.78 × 104
900 6.63 3.13 × 104
1000 7.36 3.48 × 104
2000 14.7 6.96 × 104
2270 16.8 7.91 × 104
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 1.21 4210
90.0 1.23 4260
100 1.36 4740
200 2.73 9470
300 4.09 1.42 × 104
400 5.46 1.89 × 104
500 6.82 2.37 × 104
600 8.19 2.84 × 104
700 9.55 3.31 × 104
800 10.9 3.79 × 104
900 12.3 4.26 × 104
1000 13.6 4.74 × 104
1230 16.8 5.81 × 104
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 2.07 5500
90.0 2.09 5570
100 2.33 6180
200 4.66 1.24 × 104
300 6.98 1.86 × 104
400 9.31 2.47 × 104
500 11.6 3.09 × 104
600 14.0 3.71 × 104
700 16.3 4.33 × 104
720 16.8 4.45 × 104
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 3.32 6970
90.0 3.36 7040
100 3.73 7830
200 7.46 1.57 × 104
300 11.2 2.35 × 104
400 14.9 3.13 × 104
449 16.8 3.52 × 104
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 5.06 8600
90.0 5.11 8700
100 5.68 9660
200 11.4 1.93 × 104
295 16.8 2.85 × 104
Steel I Beam: W16 × 89 (Wide Flange 16 inch tall × 89 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
89.0 12.3 1.34 × 104
90.0 12.5 1.36 × 104
100 13.9 1.51 × 104
121 16.8 1.82 × 104
Additional Information
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FREE Publications
Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

more publications