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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Aluminum I Beam » 12.00 × 14.292
Aluminum 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 = 317.33 in4) for the 12.00 × 14.292 Aluminum I Beam and the typical Young's modulus (E = 1.015 × 107 psi) of aluminum alloys. Note that the typical yielding stress Yield of aluminum alloys can range from 4061 to 7.614 × 104 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
   
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 8.08 × 10-6 3.65
20.0 1.13 × 10-5 5.11
30.0 1.70 × 10-5 7.66
40.0 2.26 × 10-5 10.2
50.0 2.83 × 10-5 12.8
60.0 3.39 × 10-5 15.3
70.0 3.96 × 10-5 17.9
80.0 4.53 × 10-5 20.4
90.0 5.09 × 10-5 23.0
100 5.66 × 10-5 25.5
200 1.13 × 10-4 51.1
300 1.70 × 10-4 76.6
400 2.26 × 10-4 102
500 2.83 × 10-4 128
600 3.39 × 10-4 153
700 3.96 × 10-4 179
800 4.53 × 10-4 204
900 5.09 × 10-4 230
1000 5.66 × 10-4 255
2000 0.00113 511
3000 0.00170 766
4000 0.00226 1020
5000 0.00283 1280
6000 0.00339 1530
7000 0.00396 1790
8000 0.00453 2040
9000 0.00509 2300
1.00 × 104 0.00566 2550
2.00 × 104 0.0113 5110
3.00 × 104 0.0170 7660
4.00 × 104 0.0226 1.02 × 104
5.00 × 104 0.0283 1.28 × 104
6.00 × 104 0.0339 1.53 × 104
7.00 × 104 0.0396 1.79 × 104
8.00 × 104 0.0453 2.04 × 104
9.00 × 104 0.0509 2.30 × 104
1.00 × 105 0.0566 2.55 × 104
2.00 × 105 0.113 5.11 × 104
2.98 × 105 0.169 7.61 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 6.24 × 10-5 10.1
20.0 8.73 × 10-5 14.2
30.0 1.31 × 10-4 21.3
40.0 1.75 × 10-4 28.4
50.0 2.18 × 10-4 35.5
60.0 2.62 × 10-4 42.5
70.0 3.06 × 10-4 49.6
80.0 3.49 × 10-4 56.7
90.0 3.93 × 10-4 63.8
100 4.36 × 10-4 70.9
200 8.73 × 10-4 142
300 0.00131 213
400 0.00175 284
500 0.00218 355
600 0.00262 425
700 0.00306 496
800 0.00349 567
900 0.00393 638
1000 0.00436 709
2000 0.00873 1420
3000 0.0131 2130
4000 0.0175 2840
5000 0.0218 3550
6000 0.0262 4250
7000 0.0306 4960
8000 0.0349 5670
9000 0.0393 6380
1.00 × 104 0.0436 7090
2.00 × 104 0.0873 1.42 × 104
3.00 × 104 0.131 2.13 × 104
4.00 × 104 0.175 2.84 × 104
5.00 × 104 0.218 3.55 × 104
6.00 × 104 0.262 4.25 × 104
7.00 × 104 0.306 4.96 × 104
8.00 × 104 0.349 5.67 × 104
9.00 × 104 0.393 6.38 × 104
1.00 × 105 0.436 7.09 × 104
1.07 × 105 0.469 7.61 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 9.98 × 10-4 40.5
20.0 0.00140 56.7
30.0 0.00210 85.1
40.0 0.00279 113
50.0 0.00349 142
60.0 0.00419 170
70.0 0.00489 199
80.0 0.00559 227
90.0 0.00629 255
100 0.00698 284
200 0.0140 567
300 0.0210 851
400 0.0279 1130
500 0.0349 1420
600 0.0419 1700
700 0.0489 1990
800 0.0559 2270
900 0.0629 2550
1000 0.0698 2840
2000 0.140 5670
3000 0.210 8510
4000 0.279 1.13 × 104
5000 0.349 1.42 × 104
6000 0.419 1.70 × 104
7000 0.489 1.99 × 104
8000 0.559 2.27 × 104
9000 0.629 2.55 × 104
1.00 × 104 0.698 2.84 × 104
2.00 × 104 1.40 5.67 × 104
2.68 × 104 1.88 7.61 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 0.00505 91.2
20.0 0.00707 128
30.0 0.0106 191
40.0 0.0141 255
50.0 0.0177 319
60.0 0.0212 383
70.0 0.0247 447
80.0 0.0283 511
90.0 0.0318 574
100 0.0354 638
200 0.0707 1280
300 0.106 1910
400 0.141 2550
500 0.177 3190
600 0.212 3830
700 0.247 4470
800 0.283 5110
900 0.318 5740
1000 0.354 6380
2000 0.707 1.28 × 104
3000 1.06 1.91 × 104
4000 1.41 2.55 × 104
5000 1.77 3.19 × 104
6000 2.12 3.83 × 104
7000 2.47 4.47 × 104
8000 2.83 5.11 × 104
9000 3.18 5.74 × 104
1.00 × 104 3.54 6.38 × 104
1.19 × 104 4.22 7.61 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 0.0160 162
20.0 0.0223 227
30.0 0.0335 340
40.0 0.0447 454
50.0 0.0559 567
60.0 0.0670 681
70.0 0.0782 794
80.0 0.0894 908
90.0 0.101 1020
100 0.112 1130
200 0.223 2270
300 0.335 3400
400 0.447 4540
500 0.559 5670
600 0.670 6810
700 0.782 7940
800 0.894 9080
900 1.01 1.02 × 104
1000 1.12 1.13 × 104
2000 2.23 2.27 × 104
3000 3.35 3.40 × 104
4000 4.47 4.54 × 104
5000 5.59 5.67 × 104
6000 6.70 6.81 × 104
6710 7.50 7.61 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 0.0390 253
20.0 0.0546 355
30.0 0.0818 532
40.0 0.109 709
50.0 0.136 886
60.0 0.164 1060
70.0 0.191 1240
80.0 0.218 1420
90.0 0.246 1600
100 0.273 1770
200 0.546 3550
300 0.818 5320
400 1.09 7090
500 1.36 8860
600 1.64 1.06 × 104
700 1.91 1.24 × 104
800 2.18 1.42 × 104
900 2.46 1.60 × 104
1000 2.73 1.77 × 104
2000 5.46 3.55 × 104
3000 8.18 5.32 × 104
4000 10.9 7.09 × 104
4300 11.7 7.61 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 0.0808 365
20.0 0.113 511
30.0 0.170 766
40.0 0.226 1020
50.0 0.283 1280
60.0 0.339 1530
70.0 0.396 1790
80.0 0.453 2040
90.0 0.509 2300
100 0.566 2550
200 1.13 5110
300 1.70 7660
400 2.26 1.02 × 104
500 2.83 1.28 × 104
600 3.39 1.53 × 104
700 3.96 1.79 × 104
800 4.53 2.04 × 104
900 5.09 2.30 × 104
1000 5.66 2.55 × 104
2000 11.3 5.11 × 104
2980 16.9 7.61 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 0.256 649
20.0 0.358 908
30.0 0.536 1360
40.0 0.715 1820
50.0 0.894 2270
60.0 1.07 2720
70.0 1.25 3180
80.0 1.43 3630
90.0 1.61 4080
100 1.79 4540
200 3.58 9080
300 5.36 1.36 × 104
400 7.15 1.82 × 104
500 8.94 2.27 × 104
600 10.7 2.72 × 104
671 12.0 3.05 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 0.624 1010
20.0 0.873 1420
30.0 1.31 2130
40.0 1.75 2840
50.0 2.18 3550
60.0 2.62 4250
70.0 3.06 4960
80.0 3.49 5670
90.0 3.93 6380
100 4.36 7090
200 8.73 1.42 × 104
275 12.0 1.95 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 1.29 1460
20.0 1.81 2040
30.0 2.72 3060
40.0 3.62 4080
50.0 4.53 5110
60.0 5.43 6130
70.0 6.34 7150
80.0 7.24 8170
90.0 8.15 9190
100 9.05 1.02 × 104
133 12.0 1.35 × 104
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 2.40 1990
20.0 3.35 2780
30.0 5.03 4170
40.0 6.71 5560
50.0 8.38 6950
60.0 10.1 8340
70.0 11.7 9730
71.6 12.0 9950
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 4.09 2590
20.0 5.72 3630
30.0 8.58 5450
40.0 11.4 7260
41.9 12.0 7610
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 6.55 3280
20.0 9.16 4590
26.2 12.0 6020
Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
14.3 9.98 4050
17.2 12.0 4870
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