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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W16 × 45

For a simply supported beam in a single span, the maximum displacement and the maximum normal stress occur at the center of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 586 in4) for the W16 × 45 Wide Flange Steel I Beam and the typical Young's modulus (E = 3.046 × 107 psi) of steels. Note that the typical yielding stress 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.

 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 45.0 4.59 × 10-6 8.36 50.0 5.11 × 10-6 9.29 60.0 6.13 × 10-6 11.1 70.0 7.15 × 10-6 13.0 80.0 8.17 × 10-6 14.9 90.0 9.19 × 10-6 16.7 100 1.02 × 10-5 18.6 200 2.04 × 10-5 37.2 300 3.06 × 10-5 55.7 400 4.08 × 10-5 74.3 500 5.11 × 10-5 92.9 600 6.13 × 10-5 111 700 7.15 × 10-5 130 800 8.17 × 10-5 149 900 9.19 × 10-5 167 1000 1.02 × 10-4 186 2000 2.04 × 10-4 372 3000 3.06 × 10-4 557 4000 4.08 × 10-4 743 5000 5.11 × 10-4 929 6000 6.13 × 10-4 1110 7000 7.15 × 10-4 1300 8000 8.17 × 10-4 1490 9000 9.19 × 10-4 1670 1.00 × 104 0.00102 1860 2.00 × 104 0.00204 3720 3.00 × 104 0.00306 5570 4.00 × 104 0.00408 7430 5.00 × 104 0.00511 9290 6.00 × 104 0.00613 1.11 × 104 7.00 × 104 0.00715 1.30 × 104 8.00 × 104 0.00817 1.49 × 104 9.00 × 104 0.00919 1.67 × 104 1.00 × 105 0.0102 1.86 × 104 2.00 × 105 0.0204 3.72 × 104 3.00 × 105 0.0306 5.57 × 104 4.00 × 105 0.0408 7.43 × 104 5.00 × 105 0.0511 9.29 × 104 6.00 × 105 0.0613 1.11 × 105 7.00 × 105 0.0715 1.30 × 105 8.00 × 105 0.0817 1.49 × 105 9.00 × 105 0.0919 1.67 × 105 1.00 × 106 0.102 1.86 × 105 1.60 × 106 0.163 2.97 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 45.0 3.55 × 10-5 23.2 50.0 3.94 × 10-5 25.8 60.0 4.73 × 10-5 31.0 70.0 5.52 × 10-5 36.1 80.0 6.30 × 10-5 41.3 90.0 7.09 × 10-5 46.4 100 7.88 × 10-5 51.6 200 1.58 × 10-4 103 300 2.36 × 10-4 155 400 3.15 × 10-4 206 500 3.94 × 10-4 258 600 4.73 × 10-4 310 700 5.52 × 10-4 361 800 6.30 × 10-4 413 900 7.09 × 10-4 464 1000 7.88 × 10-4 516 2000 0.00158 1030 3000 0.00236 1550 4000 0.00315 2060 5000 0.00394 2580 6000 0.00473 3100 7000 0.00552 3610 8000 0.00630 4130 9000 0.00709 4640 1.00 × 104 0.00788 5160 2.00 × 104 0.0158 1.03 × 104 3.00 × 104 0.0236 1.55 × 104 4.00 × 104 0.0315 2.06 × 104 5.00 × 104 0.0394 2.58 × 104 6.00 × 104 0.0473 3.10 × 104 7.00 × 104 0.0552 3.61 × 104 8.00 × 104 0.0630 4.13 × 104 9.00 × 104 0.0709 4.64 × 104 1.00 × 105 0.0788 5.16 × 104 2.00 × 105 0.158 1.03 × 105 3.00 × 105 0.236 1.55 × 105 4.00 × 105 0.315 2.06 × 105 5.00 × 105 0.394 2.58 × 105 5.76 × 105 0.453 2.97 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 45.0 5.67 × 10-4 92.9 50.0 6.30 × 10-4 103 60.0 7.56 × 10-4 124 70.0 8.82 × 10-4 145 80.0 0.00101 165 90.0 0.00113 186 100 0.00126 206 200 0.00252 413 300 0.00378 619 400 0.00504 826 500 0.00630 1030 600 0.00756 1240 700 0.00882 1450 800 0.0101 1650 900 0.0113 1860 1000 0.0126 2060 2000 0.0252 4130 3000 0.0378 6190 4000 0.0504 8260 5000 0.0630 1.03 × 104 6000 0.0756 1.24 × 104 7000 0.0882 1.45 × 104 8000 0.101 1.65 × 104 9000 0.113 1.86 × 104 1.00 × 104 0.126 2.06 × 104 2.00 × 104 0.252 4.13 × 104 3.00 × 104 0.378 6.19 × 104 4.00 × 104 0.504 8.26 × 104 5.00 × 104 0.630 1.03 × 105 6.00 × 104 0.756 1.24 × 105 7.00 × 104 0.882 1.45 × 105 8.00 × 104 1.01 1.65 × 105 9.00 × 104 1.13 1.86 × 105 1.00 × 105 1.26 2.06 × 105 1.44 × 105 1.81 2.97 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 45.0 0.00287 209 50.0 0.00319 232 60.0 0.00383 279 70.0 0.00447 325 80.0 0.00511 372 90.0 0.00574 418 100 0.00638 464 200 0.0128 929 300 0.0191 1390 400 0.0255 1860 500 0.0319 2320 600 0.0383 2790 700 0.0447 3250 800 0.0511 3720 900 0.0574 4180 1000 0.0638 4640 2000 0.128 9290 3000 0.191 1.39 × 104 4000 0.255 1.86 × 104 5000 0.319 2.32 × 104 6000 0.383 2.79 × 104 7000 0.447 3.25 × 104 8000 0.511 3.72 × 104 9000 0.574 4.18 × 104 1.00 × 104 0.638 4.64 × 104 2.00 × 104 1.28 9.29 × 104 3.00 × 104 1.91 1.39 × 105 4.00 × 104 2.55 1.86 × 105 5.00 × 104 3.19 2.32 × 105 6.00 × 104 3.83 2.79 × 105 6.39 × 104 4.08 2.97 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 45.0 0.00908 372 50.0 0.0101 413 60.0 0.0121 495 70.0 0.0141 578 80.0 0.0161 661 90.0 0.0182 743 100 0.0202 826 200 0.0403 1650 300 0.0605 2480 400 0.0807 3300 500 0.101 4130 600 0.121 4950 700 0.141 5780 800 0.161 6610 900 0.182 7430 1000 0.202 8260 2000 0.403 1.65 × 104 3000 0.605 2.48 × 104 4000 0.807 3.30 × 104 5000 1.01 4.13 × 104 6000 1.21 4.95 × 104 7000 1.41 5.78 × 104 8000 1.61 6.61 × 104 9000 1.82 7.43 × 104 1.00 × 104 2.02 8.26 × 104 2.00 × 104 4.03 1.65 × 105 3.00 × 104 6.05 2.48 × 105 3.60 × 104 7.26 2.97 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 45.0 0.0222 581 50.0 0.0246 645 60.0 0.0295 774 70.0 0.0345 903 80.0 0.0394 1030 90.0 0.0443 1160 100 0.0492 1290 200 0.0985 2580 300 0.148 3870 400 0.197 5160 500 0.246 6450 600 0.295 7740 700 0.345 9030 800 0.394 1.03 × 104 900 0.443 1.16 × 104 1000 0.492 1.29 × 104 2000 0.985 2.58 × 104 3000 1.48 3.87 × 104 4000 1.97 5.16 × 104 5000 2.46 6.45 × 104 6000 2.95 7.74 × 104 7000 3.45 9.03 × 104 8000 3.94 1.03 × 105 9000 4.43 1.16 × 105 1.00 × 104 4.92 1.29 × 105 2.00 × 104 9.85 2.58 × 105 2.30 × 104 11.3 2.97 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 45.0 0.0459 836 50.0 0.0511 929 60.0 0.0613 1110 70.0 0.0715 1300 80.0 0.0817 1490 90.0 0.0919 1670 100 0.102 1860 200 0.204 3720 300 0.306 5570 400 0.408 7430 500 0.511 9290 600 0.613 1.11 × 104 700 0.715 1.30 × 104 800 0.817 1.49 × 104 900 0.919 1.67 × 104 1000 1.02 1.86 × 104 2000 2.04 3.72 × 104 3000 3.06 5.57 × 104 4000 4.08 7.43 × 104 5000 5.11 9.29 × 104 6000 6.13 1.11 × 105 7000 7.15 1.30 × 105 8000 8.17 1.49 × 105 9000 9.19 1.67 × 105 1.00 × 104 10.2 1.86 × 105 1.60 × 104 16.3 2.97 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 45.0 0.145 1490 50.0 0.161 1650 60.0 0.194 1980 70.0 0.226 2310 80.0 0.258 2640 90.0 0.290 2970 100 0.323 3300 200 0.645 6610 300 0.968 9910 400 1.29 1.32 × 104 500 1.61 1.65 × 104 600 1.94 1.98 × 104 700 2.26 2.31 × 104 800 2.58 2.64 × 104 900 2.90 2.97 × 104 1000 3.23 3.30 × 104 2000 6.45 6.61 × 104 3000 9.68 9.91 × 104 4000 12.9 1.32 × 105 5000 16.1 1.65 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 45.0 0.355 2320 50.0 0.394 2580 60.0 0.473 3100 70.0 0.552 3610 80.0 0.630 4130 90.0 0.709 4640 100 0.788 5160 200 1.58 1.03 × 104 300 2.36 1.55 × 104 400 3.15 2.06 × 104 500 3.94 2.58 × 104 600 4.73 3.10 × 104 700 5.52 3.61 × 104 800 6.30 4.13 × 104 900 7.09 4.64 × 104 1000 7.88 5.16 × 104 2000 15.8 1.03 × 105 2050 16.1 1.06 × 105
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 45.0 0.735 3340 50.0 0.817 3720 60.0 0.980 4460 70.0 1.14 5200 80.0 1.31 5950 90.0 1.47 6690 100 1.63 7430 200 3.27 1.49 × 104 300 4.90 2.23 × 104 400 6.54 2.97 × 104 500 8.17 3.72 × 104 600 9.80 4.46 × 104 700 11.4 5.20 × 104 800 13.1 5.95 × 104 900 14.7 6.69 × 104 987 16.1 7.34 × 104
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 45.0 1.36 4550 50.0 1.51 5060 60.0 1.82 6070 70.0 2.12 7080 80.0 2.42 8090 90.0 2.72 9100 100 3.03 1.01 × 104 200 6.05 2.02 × 104 300 9.08 3.03 × 104 400 12.1 4.05 × 104 500 15.1 5.06 × 104 533 16.1 5.39 × 104
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 45.0 2.32 5950 50.0 2.58 6610 60.0 3.10 7930 70.0 3.61 9250 80.0 4.13 1.06 × 104 90.0 4.65 1.19 × 104 100 5.16 1.32 × 104 200 10.3 2.64 × 104 300 15.5 3.96 × 104 312 16.1 4.13 × 104
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 45.0 3.72 7520 50.0 4.14 8360 60.0 4.96 1.00 × 104 70.0 5.79 1.17 × 104 80.0 6.62 1.34 × 104 90.0 7.44 1.50 × 104 100 8.27 1.67 × 104 195 16.1 3.26 × 104
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 45.0 5.67 9290 50.0 6.30 1.03 × 104 60.0 7.56 1.24 × 104 70.0 8.82 1.45 × 104 80.0 10.1 1.65 × 104 90.0 11.3 1.86 × 104 100 12.6 2.06 × 104 128 16.1 2.64 × 104
 Steel I Beam: W16 × 45 (Wide Flange 16 inch tall × 45 lbf/ft) L = 125 ft (lbf/ft) (in) (psi) 45.0 13.8 1.45 × 104 50.0 15.4 1.61 × 104 52.4 16.1 1.69 × 104