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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W14 × 34
Wide Flange Steel 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 = 340 in4) for the W14 × 34 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: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 34.0 2.39 × 10-6 9.44 40.0 2.82 × 10-6 11.1 50.0 3.52 × 10-6 13.9 60.0 4.22 × 10-6 16.7 70.0 4.93 × 10-6 19.4 80.0 5.63 × 10-6 22.2 90.0 6.34 × 10-6 25.0 100 7.04 × 10-6 27.8 200 1.41 × 10-5 55.5 300 2.11 × 10-5 83.3 400 2.82 × 10-5 111 500 3.52 × 10-5 139 600 4.22 × 10-5 167 700 4.93 × 10-5 194 800 5.63 × 10-5 222 900 6.34 × 10-5 250 1000 7.04 × 10-5 278 2000 1.41 × 10-4 555 3000 2.11 × 10-4 833 4000 2.82 × 10-4 1110 5000 3.52 × 10-4 1390 6000 4.22 × 10-4 1670 7000 4.93 × 10-4 1940 8000 5.63 × 10-4 2220 9000 6.34 × 10-4 2500 1.00 × 104 7.04 × 10-4 2780 2.00 × 104 0.00141 5550 3.00 × 104 0.00211 8330 4.00 × 104 0.00282 1.11 × 104 5.00 × 104 0.00352 1.39 × 104 6.00 × 104 0.00422 1.67 × 104 7.00 × 104 0.00493 1.94 × 104 8.00 × 104 0.00563 2.22 × 104 9.00 × 104 0.00634 2.50 × 104 1.00 × 105 0.00704 2.78 × 104 2.00 × 105 0.0141 5.55 × 104 3.00 × 105 0.0211 8.33 × 104 4.00 × 105 0.0282 1.11 × 105 5.00 × 105 0.0352 1.39 × 105 6.00 × 105 0.0422 1.67 × 105 7.00 × 105 0.0493 1.94 × 105 8.00 × 105 0.0563 2.22 × 105 9.00 × 105 0.0634 2.50 × 105 1.00 × 106 0.0704 2.78 × 105 1.07 × 106 0.0753 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 34.0 1.85 × 10-5 26.2 40.0 2.17 × 10-5 30.8 50.0 2.72 × 10-5 38.5 60.0 3.26 × 10-5 46.3 70.0 3.80 × 10-5 54.0 80.0 4.35 × 10-5 61.7 90.0 4.89 × 10-5 69.4 100 5.43 × 10-5 77.1 200 1.09 × 10-4 154 300 1.63 × 10-4 231 400 2.17 × 10-4 308 500 2.72 × 10-4 385 600 3.26 × 10-4 463 700 3.80 × 10-4 540 800 4.35 × 10-4 617 900 4.89 × 10-4 694 1000 5.43 × 10-4 771 2000 0.00109 1540 3000 0.00163 2310 4000 0.00217 3080 5000 0.00272 3850 6000 0.00326 4630 7000 0.00380 5400 8000 0.00435 6170 9000 0.00489 6940 1.00 × 104 0.00543 7710 2.00 × 104 0.0109 1.54 × 104 3.00 × 104 0.0163 2.31 × 104 4.00 × 104 0.0217 3.08 × 104 5.00 × 104 0.0272 3.85 × 104 6.00 × 104 0.0326 4.63 × 104 7.00 × 104 0.0380 5.40 × 104 8.00 × 104 0.0435 6.17 × 104 9.00 × 104 0.0489 6.94 × 104 1.00 × 105 0.0543 7.71 × 104 2.00 × 105 0.109 1.54 × 105 3.00 × 105 0.163 2.31 × 105 3.85 × 105 0.209 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 34.0 2.95 × 10-4 105 40.0 3.48 × 10-4 123 50.0 4.35 × 10-4 154 60.0 5.21 × 10-4 185 70.0 6.08 × 10-4 216 80.0 6.95 × 10-4 247 90.0 7.82 × 10-4 278 100 8.69 × 10-4 308 200 0.00174 617 300 0.00261 925 400 0.00348 1230 500 0.00435 1540 600 0.00521 1850 700 0.00608 2160 800 0.00695 2470 900 0.00782 2780 1000 0.00869 3080 2000 0.0174 6170 3000 0.0261 9250 4000 0.0348 1.23 × 104 5000 0.0435 1.54 × 104 6000 0.0521 1.85 × 104 7000 0.0608 2.16 × 104 8000 0.0695 2.47 × 104 9000 0.0782 2.78 × 104 1.00 × 104 0.0869 3.08 × 104 2.00 × 104 0.174 6.17 × 104 3.00 × 104 0.261 9.25 × 104 4.00 × 104 0.348 1.23 × 105 5.00 × 104 0.435 1.54 × 105 6.00 × 104 0.521 1.85 × 105 7.00 × 104 0.608 2.16 × 105 8.00 × 104 0.695 2.47 × 105 9.00 × 104 0.782 2.78 × 105 9.63 × 104 0.837 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 34.0 0.00150 236 40.0 0.00176 278 50.0 0.00220 347 60.0 0.00264 416 70.0 0.00308 486 80.0 0.00352 555 90.0 0.00396 624 100 0.00440 694 200 0.00880 1390 300 0.0132 2080 400 0.0176 2780 500 0.0220 3470 600 0.0264 4160 700 0.0308 4860 800 0.0352 5550 900 0.0396 6240 1000 0.0440 6940 2000 0.0880 1.39 × 104 3000 0.132 2.08 × 104 4000 0.176 2.78 × 104 5000 0.220 3.47 × 104 6000 0.264 4.16 × 104 7000 0.308 4.86 × 104 8000 0.352 5.55 × 104 9000 0.396 6.24 × 104 1.00 × 104 0.440 6.94 × 104 2.00 × 104 0.880 1.39 × 105 3.00 × 104 1.32 2.08 × 105 4.00 × 104 1.76 2.78 × 105 4.28 × 104 1.88 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 34.0 0.00473 419 40.0 0.00556 493 50.0 0.00695 617 60.0 0.00834 740 70.0 0.00973 863 80.0 0.0111 987 90.0 0.0125 1110 100 0.0139 1230 200 0.0278 2470 300 0.0417 3700 400 0.0556 4930 500 0.0695 6170 600 0.0834 7400 700 0.0973 8630 800 0.111 9870 900 0.125 1.11 × 104 1000 0.139 1.23 × 104 2000 0.278 2.47 × 104 3000 0.417 3.70 × 104 4000 0.556 4.93 × 104 5000 0.695 6.17 × 104 6000 0.834 7.40 × 104 7000 0.973 8.63 × 104 8000 1.11 9.87 × 104 9000 1.25 1.11 × 105 1.00 × 104 1.39 1.23 × 105 2.00 × 104 2.78 2.47 × 105 2.41 × 104 3.35 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 34.0 0.0115 655 40.0 0.0136 771 50.0 0.0170 964 60.0 0.0204 1160 70.0 0.0238 1350 80.0 0.0272 1540 90.0 0.0306 1730 100 0.0339 1930 200 0.0679 3850 300 0.102 5780 400 0.136 7710 500 0.170 9640 600 0.204 1.16 × 104 700 0.238 1.35 × 104 800 0.272 1.54 × 104 900 0.306 1.73 × 104 1000 0.339 1.93 × 104 2000 0.679 3.85 × 104 3000 1.02 5.78 × 104 4000 1.36 7.71 × 104 5000 1.70 9.64 × 104 6000 2.04 1.16 × 105 7000 2.38 1.35 × 105 8000 2.72 1.54 × 105 9000 3.06 1.73 × 105 1.00 × 104 3.39 1.93 × 105 1.54 × 104 5.23 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 34.0 0.0239 944 40.0 0.0282 1110 50.0 0.0352 1390 60.0 0.0422 1670 70.0 0.0493 1940 80.0 0.0563 2220 90.0 0.0634 2500 100 0.0704 2780 200 0.141 5550 300 0.211 8330 400 0.282 1.11 × 104 500 0.352 1.39 × 104 600 0.422 1.67 × 104 700 0.493 1.94 × 104 800 0.563 2.22 × 104 900 0.634 2.50 × 104 1000 0.704 2.78 × 104 2000 1.41 5.55 × 104 3000 2.11 8.33 × 104 4000 2.82 1.11 × 105 5000 3.52 1.39 × 105 6000 4.22 1.67 × 105 7000 4.93 1.94 × 105 8000 5.63 2.22 × 105 9000 6.34 2.50 × 105 1.00 × 104 7.04 2.78 × 105 1.07 × 104 7.53 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 34.0 0.0756 1680 40.0 0.0890 1970 50.0 0.111 2470 60.0 0.133 2960 70.0 0.156 3450 80.0 0.178 3950 90.0 0.200 4440 100 0.222 4930 200 0.445 9870 300 0.667 1.48 × 104 400 0.890 1.97 × 104 500 1.11 2.47 × 104 600 1.33 2.96 × 104 700 1.56 3.45 × 104 800 1.78 3.95 × 104 900 2.00 4.44 × 104 1000 2.22 4.93 × 104 2000 4.45 9.87 × 104 3000 6.67 1.48 × 105 4000 8.90 1.97 × 105 5000 11.1 2.47 × 105 6000 13.3 2.96 × 105 6020 13.4 2.97 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 34.0 0.185 2620 40.0 0.217 3080 50.0 0.272 3850 60.0 0.326 4630 70.0 0.380 5400 80.0 0.435 6170 90.0 0.489 6940 100 0.543 7710 200 1.09 1.54 × 104 300 1.63 2.31 × 104 400 2.17 3.08 × 104 500 2.72 3.85 × 104 600 3.26 4.63 × 104 700 3.80 5.40 × 104 800 4.35 6.17 × 104 900 4.89 6.94 × 104 1000 5.43 7.71 × 104 2000 10.9 1.54 × 105 2570 14.0 1.98 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 34.0 0.383 3770 40.0 0.451 4440 50.0 0.563 5550 60.0 0.676 6660 70.0 0.788 7770 80.0 0.901 8880 90.0 1.01 9990 100 1.13 1.11 × 104 200 2.25 2.22 × 104 300 3.38 3.33 × 104 400 4.51 4.44 × 104 500 5.63 5.55 × 104 600 6.76 6.66 × 104 700 7.88 7.77 × 104 800 9.01 8.88 × 104 900 10.1 9.99 × 104 1000 11.3 1.11 × 105 1240 14.0 1.38 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 34.0 0.709 5140 40.0 0.835 6040 50.0 1.04 7560 60.0 1.25 9070 70.0 1.46 1.06 × 104 80.0 1.67 1.21 × 104 90.0 1.88 1.36 × 104 100 2.09 1.51 × 104 200 4.17 3.02 × 104 300 6.26 4.53 × 104 400 8.35 6.04 × 104 500 10.4 7.56 × 104 600 12.5 9.07 × 104 670 14.0 1.01 × 105
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 34.0 1.21 6710 40.0 1.42 7890 50.0 1.78 9870 60.0 2.14 1.18 × 104 70.0 2.49 1.38 × 104 80.0 2.85 1.58 × 104 90.0 3.20 1.78 × 104 100 3.56 1.97 × 104 200 7.12 3.95 × 104 300 10.7 5.92 × 104 393 14.0 7.75 × 104
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 34.0 1.94 8490 40.0 2.28 9990 50.0 2.85 1.25 × 104 60.0 3.42 1.50 × 104 70.0 3.99 1.75 × 104 80.0 4.56 2.00 × 104 90.0 5.13 2.25 × 104 100 5.70 2.50 × 104 200 11.4 5.00 × 104 245 14.0 6.12 × 104
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 34.0 2.95 1.05 × 104 40.0 3.48 1.23 × 104 50.0 4.35 1.54 × 104 60.0 5.21 1.85 × 104 70.0 6.08 2.16 × 104 80.0 6.95 2.47 × 104 90.0 7.82 2.78 × 104 100 8.69 3.08 × 104 161 14.0 4.96 × 104
 Steel I Beam: W14 × 34 (Wide Flange 14 inch tall × 34 lbf/ft) L = 125 ft (lbf/ft) (in) (psi) 34.0 7.21 1.64 × 104 40.0 8.49 1.93 × 104 50.0 10.6 2.41 × 104 60.0 12.7 2.89 × 104 65.9 14.0 3.17 × 104