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Wide Flange Steel I Beam: W12 × 19
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W12 × 19
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 = 130 in4) for the W12 × 19 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
   
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 8.75 × 10-6 12.0
20.0 9.21 × 10-6 12.6
30.0 1.38 × 10-5 18.9
40.0 1.84 × 10-5 25.3
50.0 2.30 × 10-5 31.6
60.0 2.76 × 10-5 37.9
70.0 3.22 × 10-5 44.2
80.0 3.68 × 10-5 50.5
90.0 4.14 × 10-5 56.8
100 4.60 × 10-5 63.1
200 9.21 × 10-5 126
300 1.38 × 10-4 189
400 1.84 × 10-4 253
500 2.30 × 10-4 316
600 2.76 × 10-4 379
700 3.22 × 10-4 442
800 3.68 × 10-4 505
900 4.14 × 10-4 568
1000 4.60 × 10-4 631
2000 9.21 × 10-4 1260
3000 0.00138 1890
4000 0.00184 2530
5000 0.00230 3160
6000 0.00276 3790
7000 0.00322 4420
8000 0.00368 5050
9000 0.00414 5680
1.00 × 104 0.00460 6310
2.00 × 104 0.00921 1.26 × 104
3.00 × 104 0.0138 1.89 × 104
4.00 × 104 0.0184 2.53 × 104
5.00 × 104 0.0230 3.16 × 104
6.00 × 104 0.0276 3.79 × 104
7.00 × 104 0.0322 4.42 × 104
8.00 × 104 0.0368 5.05 × 104
9.00 × 104 0.0414 5.68 × 104
1.00 × 105 0.0460 6.31 × 104
2.00 × 105 0.0921 1.26 × 105
3.00 × 105 0.138 1.89 × 105
4.00 × 105 0.184 2.53 × 105
4.70 × 105 0.217 2.97 × 105
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 6.75 × 10-5 33.3
20.0 7.10 × 10-5 35.1
30.0 1.07 × 10-4 52.6
40.0 1.42 × 10-4 70.2
50.0 1.78 × 10-4 87.7
60.0 2.13 × 10-4 105
70.0 2.49 × 10-4 123
80.0 2.84 × 10-4 140
90.0 3.20 × 10-4 158
100 3.55 × 10-4 175
200 7.10 × 10-4 351
300 0.00107 526
400 0.00142 702
500 0.00178 877
600 0.00213 1050
700 0.00249 1230
800 0.00284 1400
900 0.00320 1580
1000 0.00355 1750
2000 0.00710 3510
3000 0.0107 5260
4000 0.0142 7020
5000 0.0178 8770
6000 0.0213 1.05 × 104
7000 0.0249 1.23 × 104
8000 0.0284 1.40 × 104
9000 0.0320 1.58 × 104
1.00 × 104 0.0355 1.75 × 104
2.00 × 104 0.0710 3.51 × 104
3.00 × 104 0.107 5.26 × 104
4.00 × 104 0.142 7.02 × 104
5.00 × 104 0.178 8.77 × 104
6.00 × 104 0.213 1.05 × 105
7.00 × 104 0.249 1.23 × 105
8.00 × 104 0.284 1.40 × 105
9.00 × 104 0.320 1.58 × 105
1.00 × 105 0.355 1.75 × 105
1.69 × 105 0.602 2.97 × 105
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 0.00108 133
20.0 0.00114 140
30.0 0.00170 210
40.0 0.00227 281
50.0 0.00284 351
60.0 0.00341 421
70.0 0.00398 491
80.0 0.00455 561
90.0 0.00511 631
100 0.00568 702
200 0.0114 1400
300 0.0170 2100
400 0.0227 2810
500 0.0284 3510
600 0.0341 4210
700 0.0398 4910
800 0.0455 5610
900 0.0511 6310
1000 0.0568 7020
2000 0.114 1.40 × 104
3000 0.170 2.10 × 104
4000 0.227 2.81 × 104
5000 0.284 3.51 × 104
6000 0.341 4.21 × 104
7000 0.398 4.91 × 104
8000 0.455 5.61 × 104
9000 0.511 6.31 × 104
1.00 × 104 0.568 7.02 × 104
2.00 × 104 1.14 1.40 × 105
3.00 × 104 1.70 2.10 × 105
4.00 × 104 2.27 2.81 × 105
4.23 × 104 2.41 2.97 × 105
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 0.00547 300
20.0 0.00575 316
30.0 0.00863 474
40.0 0.0115 631
50.0 0.0144 789
60.0 0.0173 947
70.0 0.0201 1100
80.0 0.0230 1260
90.0 0.0259 1420
100 0.0288 1580
200 0.0575 3160
300 0.0863 4740
400 0.115 6310
500 0.144 7890
600 0.173 9470
700 0.201 1.10 × 104
800 0.230 1.26 × 104
900 0.259 1.42 × 104
1000 0.288 1.58 × 104
2000 0.575 3.16 × 104
3000 0.863 4.74 × 104
4000 1.15 6.31 × 104
5000 1.44 7.89 × 104
6000 1.73 9.47 × 104
7000 2.01 1.10 × 105
8000 2.30 1.26 × 105
9000 2.59 1.42 × 105
1.00 × 104 2.88 1.58 × 105
1.88 × 104 5.41 2.97 × 105
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 0.0173 533
20.0 0.0182 561
30.0 0.0273 842
40.0 0.0364 1120
50.0 0.0455 1400
60.0 0.0546 1680
70.0 0.0636 1960
80.0 0.0727 2240
90.0 0.0818 2530
100 0.0909 2810
200 0.182 5610
300 0.273 8420
400 0.364 1.12 × 104
500 0.455 1.40 × 104
600 0.546 1.68 × 104
700 0.636 1.96 × 104
800 0.727 2.24 × 104
900 0.818 2.53 × 104
1000 0.909 2.81 × 104
2000 1.82 5.61 × 104
3000 2.73 8.42 × 104
4000 3.64 1.12 × 105
5000 4.55 1.40 × 105
6000 5.46 1.68 × 105
7000 6.36 1.96 × 105
8000 7.27 2.24 × 105
9000 8.18 2.53 × 105
1.00 × 104 9.09 2.81 × 105
1.06 × 104 9.62 2.97 × 105
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 0.0422 833
20.0 0.0444 877
30.0 0.0666 1320
40.0 0.0888 1750
50.0 0.111 2190
60.0 0.133 2630
70.0 0.155 3070
80.0 0.178 3510
90.0 0.200 3950
100 0.222 4380
200 0.444 8770
300 0.666 1.32 × 104
400 0.888 1.75 × 104
500 1.11 2.19 × 104
600 1.33 2.63 × 104
700 1.55 3.07 × 104
800 1.78 3.51 × 104
900 2.00 3.95 × 104
1000 2.22 4.38 × 104
2000 4.44 8.77 × 104
3000 6.66 1.32 × 105
4000 8.88 1.75 × 105
5000 11.1 2.19 × 105
5480 12.2 2.40 × 105
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 0.0875 1200
20.0 0.0921 1260
30.0 0.138 1890
40.0 0.184 2530
50.0 0.230 3160
60.0 0.276 3790
70.0 0.322 4420
80.0 0.368 5050
90.0 0.414 5680
100 0.460 6310
200 0.921 1.26 × 104
300 1.38 1.89 × 104
400 1.84 2.53 × 104
500 2.30 3.16 × 104
600 2.76 3.79 × 104
700 3.22 4.42 × 104
800 3.68 5.05 × 104
900 4.14 5.68 × 104
1000 4.60 6.31 × 104
2000 9.21 1.26 × 105
2640 12.2 1.67 × 105
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 0.276 2130
20.0 0.291 2240
30.0 0.436 3370
40.0 0.582 4490
50.0 0.727 5610
60.0 0.873 6730
70.0 1.02 7860
80.0 1.16 8980
90.0 1.31 1.01 × 104
100 1.45 1.12 × 104
200 2.91 2.24 × 104
300 4.36 3.37 × 104
400 5.82 4.49 × 104
500 7.27 5.61 × 104
600 8.73 6.73 × 104
700 10.2 7.86 × 104
800 11.6 8.98 × 104
836 12.2 9.38 × 104
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 0.675 3330
20.0 0.710 3510
30.0 1.07 5260
40.0 1.42 7020
50.0 1.78 8770
60.0 2.13 1.05 × 104
70.0 2.49 1.23 × 104
80.0 2.84 1.40 × 104
90.0 3.20 1.58 × 104
100 3.55 1.75 × 104
200 7.10 3.51 × 104
300 10.7 5.26 × 104
342 12.2 6.00 × 104
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 1.40 4800
20.0 1.47 5050
30.0 2.21 7580
40.0 2.95 1.01 × 104
50.0 3.68 1.26 × 104
60.0 4.42 1.52 × 104
70.0 5.16 1.77 × 104
80.0 5.89 2.02 × 104
90.0 6.63 2.27 × 104
100 7.36 2.53 × 104
165 12.2 4.17 × 104
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 2.59 6530
20.0 2.73 6880
30.0 4.09 1.03 × 104
40.0 5.46 1.38 × 104
50.0 6.82 1.72 × 104
60.0 8.19 2.06 × 104
70.0 9.55 2.41 × 104
80.0 10.9 2.75 × 104
89.1 12.2 3.06 × 104
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 4.42 8530
20.0 4.66 8980
30.0 6.98 1.35 × 104
40.0 9.31 1.80 × 104
50.0 11.6 2.24 × 104
52.2 12.2 2.35 × 104
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 7.08 1.08 × 104
20.0 7.46 1.14 × 104
30.0 11.2 1.70 × 104
32.6 12.2 1.85 × 104
Steel I Beam: W12 × 19 (Wide Flange 12 inch tall × 19 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
19.0 10.8 1.33 × 104
20.0 11.4 1.40 × 104
21.4 12.2 1.50 × 104
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