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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » 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 two equal spans, we compute the displacement at the middle of each span and the maximum normal stress 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 = 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 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.

 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 14.3 3.23 × 10-6 3.65 20.0 4.53 × 10-6 5.11 30.0 6.79 × 10-6 7.66 40.0 9.05 × 10-6 10.2 50.0 1.13 × 10-5 12.8 60.0 1.36 × 10-5 15.3 70.0 1.58 × 10-5 17.9 80.0 1.81 × 10-5 20.4 90.0 2.04 × 10-5 23.0 100 2.26 × 10-5 25.5 200 4.53 × 10-5 51.1 300 6.79 × 10-5 76.6 400 9.05 × 10-5 102 500 1.13 × 10-4 128 600 1.36 × 10-4 153 700 1.58 × 10-4 179 800 1.81 × 10-4 204 900 2.04 × 10-4 230 1000 2.26 × 10-4 255 2000 4.53 × 10-4 511 3000 6.79 × 10-4 766 4000 9.05 × 10-4 1020 5000 0.00113 1280 6000 0.00136 1530 7000 0.00158 1790 8000 0.00181 2040 9000 0.00204 2300 1.00 × 104 0.00226 2550 2.00 × 104 0.00453 5110 3.00 × 104 0.00679 7660 4.00 × 104 0.00905 1.02 × 104 5.00 × 104 0.0113 1.28 × 104 6.00 × 104 0.0136 1.53 × 104 7.00 × 104 0.0158 1.79 × 104 8.00 × 104 0.0181 2.04 × 104 9.00 × 104 0.0204 2.30 × 104 1.00 × 105 0.0226 2.55 × 104 2.00 × 105 0.0453 5.11 × 104 2.98 × 105 0.0675 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 14.3 2.50 × 10-5 10.1 20.0 3.49 × 10-5 14.2 30.0 5.24 × 10-5 21.3 40.0 6.98 × 10-5 28.4 50.0 8.73 × 10-5 35.5 60.0 1.05 × 10-4 42.5 70.0 1.22 × 10-4 49.6 80.0 1.40 × 10-4 56.7 90.0 1.57 × 10-4 63.8 100 1.75 × 10-4 70.9 200 3.49 × 10-4 142 300 5.24 × 10-4 213 400 6.98 × 10-4 284 500 8.73 × 10-4 355 600 0.00105 425 700 0.00122 496 800 0.00140 567 900 0.00157 638 1000 0.00175 709 2000 0.00349 1420 3000 0.00524 2130 4000 0.00698 2840 5000 0.00873 3550 6000 0.0105 4250 7000 0.0122 4960 8000 0.0140 5670 9000 0.0157 6380 1.00 × 104 0.0175 7090 2.00 × 104 0.0349 1.42 × 104 3.00 × 104 0.0524 2.13 × 104 4.00 × 104 0.0698 2.84 × 104 5.00 × 104 0.0873 3.55 × 104 6.00 × 104 0.105 4.25 × 104 7.00 × 104 0.122 4.96 × 104 8.00 × 104 0.140 5.67 × 104 9.00 × 104 0.157 6.38 × 104 1.00 × 105 0.175 7.09 × 104 1.07 × 105 0.188 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 14.3 3.99 × 10-4 40.5 20.0 5.59 × 10-4 56.7 30.0 8.38 × 10-4 85.1 40.0 0.00112 113 50.0 0.00140 142 60.0 0.00168 170 70.0 0.00196 199 80.0 0.00223 227 90.0 0.00251 255 100 0.00279 284 200 0.00559 567 300 0.00838 851 400 0.0112 1130 500 0.0140 1420 600 0.0168 1700 700 0.0196 1990 800 0.0223 2270 900 0.0251 2550 1000 0.0279 2840 2000 0.0559 5670 3000 0.0838 8510 4000 0.112 1.13 × 104 5000 0.140 1.42 × 104 6000 0.168 1.70 × 104 7000 0.196 1.99 × 104 8000 0.223 2.27 × 104 9000 0.251 2.55 × 104 1.00 × 104 0.279 2.84 × 104 2.00 × 104 0.559 5.67 × 104 2.68 × 104 0.750 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 14.3 0.00202 91.2 20.0 0.00283 128 30.0 0.00424 191 40.0 0.00566 255 50.0 0.00707 319 60.0 0.00849 383 70.0 0.00990 447 80.0 0.0113 511 90.0 0.0127 574 100 0.0141 638 200 0.0283 1280 300 0.0424 1910 400 0.0566 2550 500 0.0707 3190 600 0.0849 3830 700 0.0990 4470 800 0.113 5110 900 0.127 5740 1000 0.141 6380 2000 0.283 1.28 × 104 3000 0.424 1.91 × 104 4000 0.566 2.55 × 104 5000 0.707 3.19 × 104 6000 0.849 3.83 × 104 7000 0.990 4.47 × 104 8000 1.13 5.11 × 104 9000 1.27 5.74 × 104 1.00 × 104 1.41 6.38 × 104 1.19 × 104 1.69 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 14.3 0.00639 162 20.0 0.00894 227 30.0 0.0134 340 40.0 0.0179 454 50.0 0.0223 567 60.0 0.0268 681 70.0 0.0313 794 80.0 0.0358 908 90.0 0.0402 1020 100 0.0447 1130 200 0.0894 2270 300 0.134 3400 400 0.179 4540 500 0.223 5670 600 0.268 6810 700 0.313 7940 800 0.358 9080 900 0.402 1.02 × 104 1000 0.447 1.13 × 104 2000 0.894 2.27 × 104 3000 1.34 3.40 × 104 4000 1.79 4.54 × 104 5000 2.23 5.67 × 104 6000 2.68 6.81 × 104 6710 3.00 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 14.3 0.0156 253 20.0 0.0218 355 30.0 0.0327 532 40.0 0.0436 709 50.0 0.0546 886 60.0 0.0655 1060 70.0 0.0764 1240 80.0 0.0873 1420 90.0 0.0982 1600 100 0.109 1770 200 0.218 3550 300 0.327 5320 400 0.436 7090 500 0.546 8860 600 0.655 1.06 × 104 700 0.764 1.24 × 104 800 0.873 1.42 × 104 900 0.982 1.60 × 104 1000 1.09 1.77 × 104 2000 2.18 3.55 × 104 3000 3.27 5.32 × 104 4000 4.36 7.09 × 104 4300 4.69 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 14.3 0.0323 365 20.0 0.0453 511 30.0 0.0679 766 40.0 0.0905 1020 50.0 0.113 1280 60.0 0.136 1530 70.0 0.158 1790 80.0 0.181 2040 90.0 0.204 2300 100 0.226 2550 200 0.453 5110 300 0.679 7660 400 0.905 1.02 × 104 500 1.13 1.28 × 104 600 1.36 1.53 × 104 700 1.58 1.79 × 104 800 1.81 2.04 × 104 900 2.04 2.30 × 104 1000 2.26 2.55 × 104 2000 4.53 5.11 × 104 2980 6.75 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 14.3 0.102 649 20.0 0.143 908 30.0 0.215 1360 40.0 0.286 1820 50.0 0.358 2270 60.0 0.429 2720 70.0 0.501 3180 80.0 0.572 3630 90.0 0.644 4080 100 0.715 4540 200 1.43 9080 300 2.15 1.36 × 104 400 2.86 1.82 × 104 500 3.58 2.27 × 104 600 4.29 2.72 × 104 700 5.01 3.18 × 104 800 5.72 3.63 × 104 900 6.44 4.08 × 104 1000 7.15 4.54 × 104 1680 12.0 7.61 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 14.3 0.250 1010 20.0 0.349 1420 30.0 0.524 2130 40.0 0.698 2840 50.0 0.873 3550 60.0 1.05 4250 70.0 1.22 4960 80.0 1.40 5670 90.0 1.57 6380 100 1.75 7090 200 3.49 1.42 × 104 300 5.24 2.13 × 104 400 6.98 2.84 × 104 500 8.73 3.55 × 104 600 10.5 4.25 × 104 687 12.0 4.87 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 14.3 0.517 1460 20.0 0.724 2040 30.0 1.09 3060 40.0 1.45 4080 50.0 1.81 5110 60.0 2.17 6130 70.0 2.53 7150 80.0 2.90 8170 90.0 3.26 9190 100 3.62 1.02 × 104 200 7.24 2.04 × 104 300 10.9 3.06 × 104 331 12.0 3.38 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 14.3 0.959 1990 20.0 1.34 2780 30.0 2.01 4170 40.0 2.68 5560 50.0 3.35 6950 60.0 4.02 8340 70.0 4.70 9730 80.0 5.37 1.11 × 104 90.0 6.04 1.25 × 104 100 6.71 1.39 × 104 179 12.0 2.49 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 14.3 1.64 2590 20.0 2.29 3630 30.0 3.43 5450 40.0 4.58 7260 50.0 5.72 9080 60.0 6.87 1.09 × 104 70.0 8.01 1.27 × 104 80.0 9.15 1.45 × 104 90.0 10.3 1.63 × 104 100 11.4 1.82 × 104 105 12.0 1.90 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 14.3 2.62 3280 20.0 3.67 4590 30.0 5.50 6890 40.0 7.33 9190 50.0 9.16 1.15 × 104 60.0 11.0 1.38 × 104 65.5 12.0 1.50 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 14.3 3.99 4050 20.0 5.59 5670 30.0 8.38 8510 40.0 11.2 1.13 × 104 43.0 12.0 1.22 × 104
 Aluminum I Beam: 12.00 × 14.292 (12.00 inch tall × 14.292 lbf/ft) L = 125 ft (lbf/ft) (in) (psi) 14.3 9.75 6330 17.6 12.0 7800
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