Wide Flange Steel I Beam: W12 × 35

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W12 × 35
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in three equal spans, we compute the displacement at the middle of the first and the third spans, and the maximum normal stress occuring at the second and third supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 285 in4) for the W12 × 35 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: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 35.0 3.84 × 10-6 8.29 40.0 4.39 × 10-6 9.47 50.0 5.48 × 10-6 11.8 60.0 6.58 × 10-6 14.2 70.0 7.68 × 10-6 16.6 80.0 8.77 × 10-6 18.9 90.0 9.87 × 10-6 21.3 100 1.10 × 10-5 23.7 200 2.19 × 10-5 47.4 300 3.29 × 10-5 71.1 400 4.39 × 10-5 94.7 500 5.48 × 10-5 118 600 6.58 × 10-5 142 700 7.68 × 10-5 166 800 8.77 × 10-5 189 900 9.87 × 10-5 213 1000 1.10 × 10-4 237 2000 2.19 × 10-4 474 3000 3.29 × 10-4 711 4000 4.39 × 10-4 947 5000 5.48 × 10-4 1180 6000 6.58 × 10-4 1420 7000 7.68 × 10-4 1660 8000 8.77 × 10-4 1890 9000 9.87 × 10-4 2130 1.00 × 104 0.00110 2370 2.00 × 104 0.00219 4740 3.00 × 104 0.00329 7110 4.00 × 104 0.00439 9470 5.00 × 104 0.00548 1.18 × 104 6.00 × 104 0.00658 1.42 × 104 7.00 × 104 0.00768 1.66 × 104 8.00 × 104 0.00877 1.89 × 104 9.00 × 104 0.00987 2.13 × 104 1.00 × 105 0.0110 2.37 × 104 2.00 × 105 0.0219 4.74 × 104 3.00 × 105 0.0329 7.11 × 104 4.00 × 105 0.0439 9.47 × 104 5.00 × 105 0.0548 1.18 × 105 6.00 × 105 0.0658 1.42 × 105 7.00 × 105 0.0768 1.66 × 105 8.00 × 105 0.0877 1.89 × 105 9.00 × 105 0.0987 2.13 × 105 1.00 × 106 0.110 2.37 × 105 1.25 × 106 0.138 2.97 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 35.0 2.96 × 10-5 23.0 40.0 3.38 × 10-5 26.3 50.0 4.23 × 10-5 32.9 60.0 5.08 × 10-5 39.5 70.0 5.92 × 10-5 46.1 80.0 6.77 × 10-5 52.6 90.0 7.61 × 10-5 59.2 100 8.46 × 10-5 65.8 200 1.69 × 10-4 132 300 2.54 × 10-4 197 400 3.38 × 10-4 263 500 4.23 × 10-4 329 600 5.08 × 10-4 395 700 5.92 × 10-4 461 800 6.77 × 10-4 526 900 7.61 × 10-4 592 1000 8.46 × 10-4 658 2000 0.00169 1320 3000 0.00254 1970 4000 0.00338 2630 5000 0.00423 3290 6000 0.00508 3950 7000 0.00592 4610 8000 0.00677 5260 9000 0.00761 5920 1.00 × 104 0.00846 6580 2.00 × 104 0.0169 1.32 × 104 3.00 × 104 0.0254 1.97 × 104 4.00 × 104 0.0338 2.63 × 104 5.00 × 104 0.0423 3.29 × 104 6.00 × 104 0.0508 3.95 × 104 7.00 × 104 0.0592 4.61 × 104 8.00 × 104 0.0677 5.26 × 104 9.00 × 104 0.0761 5.92 × 104 1.00 × 105 0.0846 6.58 × 104 2.00 × 105 0.169 1.32 × 105 3.00 × 105 0.254 1.97 × 105 4.00 × 105 0.338 2.63 × 105 4.51 × 105 0.382 2.97 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 35.0 4.74 × 10-4 92.1 40.0 5.41 × 10-4 105 50.0 6.77 × 10-4 132 60.0 8.12 × 10-4 158 70.0 9.48 × 10-4 184 80.0 0.00108 211 90.0 0.00122 237 100 0.00135 263 200 0.00271 526 300 0.00406 789 400 0.00541 1050 500 0.00677 1320 600 0.00812 1580 700 0.00948 1840 800 0.0108 2110 900 0.0122 2370 1000 0.0135 2630 2000 0.0271 5260 3000 0.0406 7890 4000 0.0541 1.05 × 104 5000 0.0677 1.32 × 104 6000 0.0812 1.58 × 104 7000 0.0948 1.84 × 104 8000 0.108 2.11 × 104 9000 0.122 2.37 × 104 1.00 × 104 0.135 2.63 × 104 2.00 × 104 0.271 5.26 × 104 3.00 × 104 0.406 7.89 × 104 4.00 × 104 0.541 1.05 × 105 5.00 × 104 0.677 1.32 × 105 6.00 × 104 0.812 1.58 × 105 7.00 × 104 0.948 1.84 × 105 8.00 × 104 1.08 2.11 × 105 9.00 × 104 1.22 2.37 × 105 1.00 × 105 1.35 2.63 × 105 1.13 × 105 1.53 2.97 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 35.0 0.00240 207 40.0 0.00274 237 50.0 0.00343 296 60.0 0.00411 355 70.0 0.00480 414 80.0 0.00548 474 90.0 0.00617 533 100 0.00685 592 200 0.0137 1180 300 0.0206 1780 400 0.0274 2370 500 0.0343 2960 600 0.0411 3550 700 0.0480 4140 800 0.0548 4740 900 0.0617 5330 1000 0.0685 5920 2000 0.137 1.18 × 104 3000 0.206 1.78 × 104 4000 0.274 2.37 × 104 5000 0.343 2.96 × 104 6000 0.411 3.55 × 104 7000 0.480 4.14 × 104 8000 0.548 4.74 × 104 9000 0.617 5.33 × 104 1.00 × 104 0.685 5.92 × 104 2.00 × 104 1.37 1.18 × 105 3.00 × 104 2.06 1.78 × 105 4.00 × 104 2.74 2.37 × 105 5.00 × 104 3.43 2.96 × 105 5.02 × 104 3.44 2.97 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 35.0 0.00758 368 40.0 0.00866 421 50.0 0.0108 526 60.0 0.0130 632 70.0 0.0152 737 80.0 0.0173 842 90.0 0.0195 947 100 0.0217 1050 200 0.0433 2110 300 0.0650 3160 400 0.0866 4210 500 0.108 5260 600 0.130 6320 700 0.152 7370 800 0.173 8420 900 0.195 9470 1000 0.217 1.05 × 104 2000 0.433 2.11 × 104 3000 0.650 3.16 × 104 4000 0.866 4.21 × 104 5000 1.08 5.26 × 104 6000 1.30 6.32 × 104 7000 1.52 7.37 × 104 8000 1.73 8.42 × 104 9000 1.95 9.47 × 104 1.00 × 104 2.17 1.05 × 105 2.00 × 104 4.33 2.11 × 105 2.82 × 104 6.11 2.97 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 35.0 0.0185 576 40.0 0.0212 658 50.0 0.0264 822 60.0 0.0317 987 70.0 0.0370 1150 80.0 0.0423 1320 90.0 0.0476 1480 100 0.0529 1640 200 0.106 3290 300 0.159 4930 400 0.212 6580 500 0.264 8220 600 0.317 9870 700 0.370 1.15 × 104 800 0.423 1.32 × 104 900 0.476 1.48 × 104 1000 0.529 1.64 × 104 2000 1.06 3.29 × 104 3000 1.59 4.93 × 104 4000 2.12 6.58 × 104 5000 2.64 8.22 × 104 6000 3.17 9.87 × 104 7000 3.70 1.15 × 105 8000 4.23 1.32 × 105 9000 4.76 1.48 × 105 1.00 × 104 5.29 1.64 × 105 1.81 × 104 9.55 2.97 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 35.0 0.0384 829 40.0 0.0439 947 50.0 0.0548 1180 60.0 0.0658 1420 70.0 0.0768 1660 80.0 0.0877 1890 90.0 0.0987 2130 100 0.110 2370 200 0.219 4740 300 0.329 7110 400 0.439 9470 500 0.548 1.18 × 104 600 0.658 1.42 × 104 700 0.768 1.66 × 104 800 0.877 1.89 × 104 900 0.987 2.13 × 104 1000 1.10 2.37 × 104 2000 2.19 4.74 × 104 3000 3.29 7.11 × 104 4000 4.39 9.47 × 104 5000 5.48 1.18 × 105 6000 6.58 1.42 × 105 7000 7.68 1.66 × 105 8000 8.77 1.89 × 105 9000 9.87 2.13 × 105 1.00 × 104 11.0 2.37 × 105 1.25 × 104 13.8 2.97 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 35.0 0.121 1470 40.0 0.139 1680 50.0 0.173 2110 60.0 0.208 2530 70.0 0.243 2950 80.0 0.277 3370 90.0 0.312 3790 100 0.347 4210 200 0.693 8420 300 1.04 1.26 × 104 400 1.39 1.68 × 104 500 1.73 2.11 × 104 600 2.08 2.53 × 104 700 2.43 2.95 × 104 800 2.77 3.37 × 104 900 3.12 3.79 × 104 1000 3.47 4.21 × 104 2000 6.93 8.42 × 104 3000 10.4 1.26 × 105 3610 12.5 1.52 × 105
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 35.0 0.296 2300 40.0 0.338 2630 50.0 0.423 3290 60.0 0.508 3950 70.0 0.592 4610 80.0 0.677 5260 90.0 0.761 5920 100 0.846 6580 200 1.69 1.32 × 104 300 2.54 1.97 × 104 400 3.38 2.63 × 104 500 4.23 3.29 × 104 600 5.08 3.95 × 104 700 5.92 4.61 × 104 800 6.77 5.26 × 104 900 7.61 5.92 × 104 1000 8.46 6.58 × 104 1480 12.5 9.72 × 104
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 35.0 0.614 3320 40.0 0.702 3790 50.0 0.877 4740 60.0 1.05 5680 70.0 1.23 6630 80.0 1.40 7580 90.0 1.58 8530 100 1.75 9470 200 3.51 1.89 × 104 300 5.26 2.84 × 104 400 7.02 3.79 × 104 500 8.77 4.74 × 104 600 10.5 5.68 × 104 700 12.3 6.63 × 104 713 12.5 6.75 × 104
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 35.0 1.14 4510 40.0 1.30 5160 50.0 1.63 6450 60.0 1.95 7740 70.0 2.28 9030 80.0 2.60 1.03 × 104 90.0 2.93 1.16 × 104 100 3.25 1.29 × 104 200 6.50 2.58 × 104 300 9.75 3.87 × 104 385 12.5 4.96 × 104
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 35.0 1.94 5890 40.0 2.22 6740 50.0 2.77 8420 60.0 3.33 1.01 × 104 70.0 3.88 1.18 × 104 80.0 4.44 1.35 × 104 90.0 4.99 1.52 × 104 100 5.54 1.68 × 104 200 11.1 3.37 × 104 225 12.5 3.80 × 104
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 35.0 3.11 7460 40.0 3.55 8530 50.0 4.44 1.07 × 104 60.0 5.33 1.28 × 104 70.0 6.22 1.49 × 104 80.0 7.11 1.71 × 104 90.0 7.99 1.92 × 104 100 8.88 2.13 × 104 141 12.5 3.00 × 104
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 35.0 4.74 9210 40.0 5.41 1.05 × 104 50.0 6.77 1.32 × 104 60.0 8.12 1.58 × 104 70.0 9.48 1.84 × 104 80.0 10.8 2.11 × 104 90.0 12.2 2.37 × 104 92.3 12.5 2.43 × 104
 Steel I Beam: W12 × 35 (Wide Flange 12 inch tall × 35 lbf/ft) L = 125 ft (lbf/ft) (in) (psi) 35.0 11.6 1.44 × 104 37.8 12.5 1.56 × 104
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