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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W10 × 45
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 = 248 in4) for the W10 × 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: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 45.0 4.34 × 10-6 12.4 50.0 4.83 × 10-6 13.7 60.0 5.79 × 10-6 16.5 70.0 6.76 × 10-6 19.2 80.0 7.72 × 10-6 22.0 90.0 8.69 × 10-6 24.7 100 9.65 × 10-6 27.5 200 1.93 × 10-5 55.0 300 2.90 × 10-5 82.5 400 3.86 × 10-5 110 500 4.83 × 10-5 137 600 5.79 × 10-5 165 700 6.76 × 10-5 192 800 7.72 × 10-5 220 900 8.69 × 10-5 247 1000 9.65 × 10-5 275 2000 1.93 × 10-4 550 3000 2.90 × 10-4 825 4000 3.86 × 10-4 1100 5000 4.83 × 10-4 1370 6000 5.79 × 10-4 1650 7000 6.76 × 10-4 1920 8000 7.72 × 10-4 2200 9000 8.69 × 10-4 2470 1.00 × 104 9.65 × 10-4 2750 2.00 × 104 0.00193 5500 3.00 × 104 0.00290 8250 4.00 × 104 0.00386 1.10 × 104 5.00 × 104 0.00483 1.37 × 104 6.00 × 104 0.00579 1.65 × 104 7.00 × 104 0.00676 1.92 × 104 8.00 × 104 0.00772 2.20 × 104 9.00 × 104 0.00869 2.47 × 104 1.00 × 105 0.00965 2.75 × 104 2.00 × 105 0.0193 5.50 × 104 3.00 × 105 0.0290 8.25 × 104 4.00 × 105 0.0386 1.10 × 105 5.00 × 105 0.0483 1.37 × 105 6.00 × 105 0.0579 1.65 × 105 7.00 × 105 0.0676 1.92 × 105 8.00 × 105 0.0772 2.20 × 105 9.00 × 105 0.0869 2.47 × 105 1.00 × 106 0.0965 2.75 × 105 1.08 × 106 0.104 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 45.0 3.35 × 10-5 34.4 50.0 3.72 × 10-5 38.2 60.0 4.47 × 10-5 45.8 70.0 5.21 × 10-5 53.5 80.0 5.96 × 10-5 61.1 90.0 6.70 × 10-5 68.7 100 7.45 × 10-5 76.4 200 1.49 × 10-4 153 300 2.23 × 10-4 229 400 2.98 × 10-4 305 500 3.72 × 10-4 382 600 4.47 × 10-4 458 700 5.21 × 10-4 535 800 5.96 × 10-4 611 900 6.70 × 10-4 687 1000 7.45 × 10-4 764 2000 0.00149 1530 3000 0.00223 2290 4000 0.00298 3050 5000 0.00372 3820 6000 0.00447 4580 7000 0.00521 5350 8000 0.00596 6110 9000 0.00670 6870 1.00 × 104 0.00745 7640 2.00 × 104 0.0149 1.53 × 104 3.00 × 104 0.0223 2.29 × 104 4.00 × 104 0.0298 3.05 × 104 5.00 × 104 0.0372 3.82 × 104 6.00 × 104 0.0447 4.58 × 104 7.00 × 104 0.0521 5.35 × 104 8.00 × 104 0.0596 6.11 × 104 9.00 × 104 0.0670 6.87 × 104 1.00 × 105 0.0745 7.64 × 104 2.00 × 105 0.149 1.53 × 105 3.00 × 105 0.223 2.29 × 105 3.89 × 105 0.290 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 45.0 5.36 × 10-4 137 50.0 5.96 × 10-4 153 60.0 7.15 × 10-4 183 70.0 8.34 × 10-4 214 80.0 9.53 × 10-4 244 90.0 0.00107 275 100 0.00119 305 200 0.00238 611 300 0.00357 916 400 0.00477 1220 500 0.00596 1530 600 0.00715 1830 700 0.00834 2140 800 0.00953 2440 900 0.0107 2750 1000 0.0119 3050 2000 0.0238 6110 3000 0.0357 9160 4000 0.0477 1.22 × 104 5000 0.0596 1.53 × 104 6000 0.0715 1.83 × 104 7000 0.0834 2.14 × 104 8000 0.0953 2.44 × 104 9000 0.107 2.75 × 104 1.00 × 104 0.119 3.05 × 104 2.00 × 104 0.238 6.11 × 104 3.00 × 104 0.357 9.16 × 104 4.00 × 104 0.477 1.22 × 105 5.00 × 104 0.596 1.53 × 105 6.00 × 104 0.715 1.83 × 105 7.00 × 104 0.834 2.14 × 105 8.00 × 104 0.953 2.44 × 105 9.00 × 104 1.07 2.75 × 105 9.72 × 104 1.16 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 45.0 0.00271 309 50.0 0.00302 344 60.0 0.00362 412 70.0 0.00422 481 80.0 0.00483 550 90.0 0.00543 619 100 0.00603 687 200 0.0121 1370 300 0.0181 2060 400 0.0241 2750 500 0.0302 3440 600 0.0362 4120 700 0.0422 4810 800 0.0483 5500 900 0.0543 6190 1000 0.0603 6870 2000 0.121 1.37 × 104 3000 0.181 2.06 × 104 4000 0.241 2.75 × 104 5000 0.302 3.44 × 104 6000 0.362 4.12 × 104 7000 0.422 4.81 × 104 8000 0.483 5.50 × 104 9000 0.543 6.19 × 104 1.00 × 104 0.603 6.87 × 104 2.00 × 104 1.21 1.37 × 105 3.00 × 104 1.81 2.06 × 105 4.00 × 104 2.41 2.75 × 105 4.32 × 104 2.61 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 45.0 0.00858 550 50.0 0.00953 611 60.0 0.0114 733 70.0 0.0133 855 80.0 0.0153 977 90.0 0.0172 1100 100 0.0191 1220 200 0.0381 2440 300 0.0572 3670 400 0.0763 4890 500 0.0953 6110 600 0.114 7330 700 0.133 8550 800 0.153 9770 900 0.172 1.10 × 104 1000 0.191 1.22 × 104 2000 0.381 2.44 × 104 3000 0.572 3.67 × 104 4000 0.763 4.89 × 104 5000 0.953 6.11 × 104 6000 1.14 7.33 × 104 7000 1.33 8.55 × 104 8000 1.53 9.77 × 104 9000 1.72 1.10 × 105 1.00 × 104 1.91 1.22 × 105 2.00 × 104 3.81 2.44 × 105 2.43 × 104 4.63 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 45.0 0.0209 859 50.0 0.0233 955 60.0 0.0279 1150 70.0 0.0326 1340 80.0 0.0372 1530 90.0 0.0419 1720 100 0.0465 1910 200 0.0931 3820 300 0.140 5730 400 0.186 7640 500 0.233 9550 600 0.279 1.15 × 104 700 0.326 1.34 × 104 800 0.372 1.53 × 104 900 0.419 1.72 × 104 1000 0.465 1.91 × 104 2000 0.931 3.82 × 104 3000 1.40 5.73 × 104 4000 1.86 7.64 × 104 5000 2.33 9.55 × 104 6000 2.79 1.15 × 105 7000 3.26 1.34 × 105 8000 3.72 1.53 × 105 9000 4.19 1.72 × 105 1.00 × 104 4.65 1.91 × 105 1.56 × 104 7.24 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 45.0 0.0434 1240 50.0 0.0483 1370 60.0 0.0579 1650 70.0 0.0676 1920 80.0 0.0772 2200 90.0 0.0869 2470 100 0.0965 2750 200 0.193 5500 300 0.290 8250 400 0.386 1.10 × 104 500 0.483 1.37 × 104 600 0.579 1.65 × 104 700 0.676 1.92 × 104 800 0.772 2.20 × 104 900 0.869 2.47 × 104 1000 0.965 2.75 × 104 2000 1.93 5.50 × 104 3000 2.90 8.25 × 104 4000 3.86 1.10 × 105 5000 4.83 1.37 × 105 6000 5.79 1.65 × 105 7000 6.76 1.92 × 105 8000 7.72 2.20 × 105 9000 8.69 2.47 × 105 1.00 × 104 9.65 2.75 × 105 1.08 × 104 10.4 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 45.0 0.137 2200 50.0 0.153 2440 60.0 0.183 2930 70.0 0.214 3420 80.0 0.244 3910 90.0 0.275 4400 100 0.305 4890 200 0.610 9770 300 0.915 1.47 × 104 400 1.22 1.95 × 104 500 1.53 2.44 × 104 600 1.83 2.93 × 104 700 2.14 3.42 × 104 800 2.44 3.91 × 104 900 2.75 4.40 × 104 1000 3.05 4.89 × 104 2000 6.10 9.77 × 104 3000 9.15 1.47 × 105 3310 10.1 1.62 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 45.0 0.335 3440 50.0 0.372 3820 60.0 0.447 4580 70.0 0.521 5350 80.0 0.596 6110 90.0 0.670 6870 100 0.745 7640 200 1.49 1.53 × 104 300 2.23 2.29 × 104 400 2.98 3.05 × 104 500 3.72 3.82 × 104 600 4.47 4.58 × 104 700 5.21 5.35 × 104 800 5.96 6.11 × 104 900 6.70 6.87 × 104 1000 7.45 7.64 × 104 1360 10.1 1.04 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 45.0 0.695 4950 50.0 0.772 5500 60.0 0.927 6600 70.0 1.08 7700 80.0 1.24 8800 90.0 1.39 9900 100 1.54 1.10 × 104 200 3.09 2.20 × 104 300 4.63 3.30 × 104 400 6.18 4.40 × 104 500 7.72 5.50 × 104 600 9.27 6.60 × 104 654 10.1 7.19 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 45.0 1.29 6740 50.0 1.43 7480 60.0 1.72 8980 70.0 2.00 1.05 × 104 80.0 2.29 1.20 × 104 90.0 2.57 1.35 × 104 100 2.86 1.50 × 104 200 5.72 2.99 × 104 300 8.58 4.49 × 104 353 10.1 5.28 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 45.0 2.20 8800 50.0 2.44 9770 60.0 2.93 1.17 × 104 70.0 3.42 1.37 × 104 80.0 3.90 1.56 × 104 90.0 4.39 1.76 × 104 100 4.88 1.95 × 104 200 9.76 3.91 × 104 207 10.1 4.05 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 45.0 3.52 1.11 × 104 50.0 3.91 1.24 × 104 60.0 4.69 1.48 × 104 70.0 5.47 1.73 × 104 80.0 6.25 1.98 × 104 90.0 7.04 2.23 × 104 100 7.82 2.47 × 104 129 10.1 3.20 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 45.0 5.36 1.37 × 104 50.0 5.96 1.53 × 104 60.0 7.15 1.83 × 104 70.0 8.34 2.14 × 104 80.0 9.53 2.44 × 104 84.8 10.1 2.59 × 104