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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W10 × 30
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 = 170 in4) for the W10 × 30 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 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 30.0 4.22 × 10-6 12.5 40.0 5.63 × 10-6 16.6 50.0 7.04 × 10-6 20.8 60.0 8.45 × 10-6 24.9 70.0 9.86 × 10-6 29.1 80.0 1.13 × 10-5 33.3 90.0 1.27 × 10-5 37.4 100 1.41 × 10-5 41.6 200 2.82 × 10-5 83.1 300 4.22 × 10-5 125 400 5.63 × 10-5 166 500 7.04 × 10-5 208 600 8.45 × 10-5 249 700 9.86 × 10-5 291 800 1.13 × 10-4 333 900 1.27 × 10-4 374 1000 1.41 × 10-4 416 2000 2.82 × 10-4 831 3000 4.22 × 10-4 1250 4000 5.63 × 10-4 1660 5000 7.04 × 10-4 2080 6000 8.45 × 10-4 2490 7000 9.86 × 10-4 2910 8000 0.00113 3330 9000 0.00127 3740 1.00 × 104 0.00141 4160 2.00 × 104 0.00282 8310 3.00 × 104 0.00422 1.25 × 104 4.00 × 104 0.00563 1.66 × 104 5.00 × 104 0.00704 2.08 × 104 6.00 × 104 0.00845 2.49 × 104 7.00 × 104 0.00986 2.91 × 104 8.00 × 104 0.0113 3.33 × 104 9.00 × 104 0.0127 3.74 × 104 1.00 × 105 0.0141 4.16 × 104 2.00 × 105 0.0282 8.31 × 104 3.00 × 105 0.0422 1.25 × 105 4.00 × 105 0.0563 1.66 × 105 5.00 × 105 0.0704 2.08 × 105 6.00 × 105 0.0845 2.49 × 105 7.00 × 105 0.0986 2.91 × 105 7.15 × 105 0.101 2.97 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 30.0 3.26 × 10-5 34.6 40.0 4.35 × 10-5 46.2 50.0 5.43 × 10-5 57.7 60.0 6.52 × 10-5 69.3 70.0 7.60 × 10-5 80.8 80.0 8.69 × 10-5 92.4 90.0 9.78 × 10-5 104 100 1.09 × 10-4 115 200 2.17 × 10-4 231 300 3.26 × 10-4 346 400 4.35 × 10-4 462 500 5.43 × 10-4 577 600 6.52 × 10-4 693 700 7.60 × 10-4 808 800 8.69 × 10-4 924 900 9.78 × 10-4 1040 1000 0.00109 1150 2000 0.00217 2310 3000 0.00326 3460 4000 0.00435 4620 5000 0.00543 5770 6000 0.00652 6930 7000 0.00760 8080 8000 0.00869 9240 9000 0.00978 1.04 × 104 1.00 × 104 0.0109 1.15 × 104 2.00 × 104 0.0217 2.31 × 104 3.00 × 104 0.0326 3.46 × 104 4.00 × 104 0.0435 4.62 × 104 5.00 × 104 0.0543 5.77 × 104 6.00 × 104 0.0652 6.93 × 104 7.00 × 104 0.0760 8.08 × 104 8.00 × 104 0.0869 9.24 × 104 9.00 × 104 0.0978 1.04 × 105 1.00 × 105 0.109 1.15 × 105 2.00 × 105 0.217 2.31 × 105 2.57 × 105 0.279 2.97 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 30.0 5.21 × 10-4 139 40.0 6.95 × 10-4 185 50.0 8.69 × 10-4 231 60.0 0.00104 277 70.0 0.00122 323 80.0 0.00139 370 90.0 0.00156 416 100 0.00174 462 200 0.00348 924 300 0.00521 1390 400 0.00695 1850 500 0.00869 2310 600 0.0104 2770 700 0.0122 3230 800 0.0139 3700 900 0.0156 4160 1000 0.0174 4620 2000 0.0348 9240 3000 0.0521 1.39 × 104 4000 0.0695 1.85 × 104 5000 0.0869 2.31 × 104 6000 0.104 2.77 × 104 7000 0.122 3.23 × 104 8000 0.139 3.70 × 104 9000 0.156 4.16 × 104 1.00 × 104 0.174 4.62 × 104 2.00 × 104 0.348 9.24 × 104 3.00 × 104 0.521 1.39 × 105 4.00 × 104 0.695 1.85 × 105 5.00 × 104 0.869 2.31 × 105 6.00 × 104 1.04 2.77 × 105 6.43 × 104 1.12 2.97 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 30.0 0.00264 312 40.0 0.00352 416 50.0 0.00440 520 60.0 0.00528 624 70.0 0.00616 728 80.0 0.00704 831 90.0 0.00792 935 100 0.00880 1040 200 0.0176 2080 300 0.0264 3120 400 0.0352 4160 500 0.0440 5200 600 0.0528 6240 700 0.0616 7280 800 0.0704 8310 900 0.0792 9350 1000 0.0880 1.04 × 104 2000 0.176 2.08 × 104 3000 0.264 3.12 × 104 4000 0.352 4.16 × 104 5000 0.440 5.20 × 104 6000 0.528 6.24 × 104 7000 0.616 7.28 × 104 8000 0.704 8.31 × 104 9000 0.792 9.35 × 104 1.00 × 104 0.880 1.04 × 105 2.00 × 104 1.76 2.08 × 105 2.86 × 104 2.51 2.97 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 30.0 0.00834 554 40.0 0.0111 739 50.0 0.0139 924 60.0 0.0167 1110 70.0 0.0195 1290 80.0 0.0222 1480 90.0 0.0250 1660 100 0.0278 1850 200 0.0556 3700 300 0.0834 5540 400 0.111 7390 500 0.139 9240 600 0.167 1.11 × 104 700 0.195 1.29 × 104 800 0.222 1.48 × 104 900 0.250 1.66 × 104 1000 0.278 1.85 × 104 2000 0.556 3.70 × 104 3000 0.834 5.54 × 104 4000 1.11 7.39 × 104 5000 1.39 9.24 × 104 6000 1.67 1.11 × 105 7000 1.95 1.29 × 105 8000 2.22 1.48 × 105 9000 2.50 1.66 × 105 1.00 × 104 2.78 1.85 × 105 1.61 × 104 4.47 2.97 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 30.0 0.0204 866 40.0 0.0272 1150 50.0 0.0339 1440 60.0 0.0407 1730 70.0 0.0475 2020 80.0 0.0543 2310 90.0 0.0611 2600 100 0.0679 2890 200 0.136 5770 300 0.204 8660 400 0.272 1.15 × 104 500 0.339 1.44 × 104 600 0.407 1.73 × 104 700 0.475 2.02 × 104 800 0.543 2.31 × 104 900 0.611 2.60 × 104 1000 0.679 2.89 × 104 2000 1.36 5.77 × 104 3000 2.04 8.66 × 104 4000 2.72 1.15 × 105 5000 3.39 1.44 × 105 6000 4.07 1.73 × 105 7000 4.75 2.02 × 105 8000 5.43 2.31 × 105 9000 6.11 2.60 × 105 1.00 × 104 6.79 2.89 × 105 1.03 × 104 6.99 2.97 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 30.0 0.0422 1250 40.0 0.0563 1660 50.0 0.0704 2080 60.0 0.0845 2490 70.0 0.0986 2910 80.0 0.113 3330 90.0 0.127 3740 100 0.141 4160 200 0.282 8310 300 0.422 1.25 × 104 400 0.563 1.66 × 104 500 0.704 2.08 × 104 600 0.845 2.49 × 104 700 0.986 2.91 × 104 800 1.13 3.33 × 104 900 1.27 3.74 × 104 1000 1.41 4.16 × 104 2000 2.82 8.31 × 104 3000 4.22 1.25 × 105 4000 5.63 1.66 × 105 5000 7.04 2.08 × 105 6000 8.45 2.49 × 105 7000 9.86 2.91 × 105 7150 10.1 2.97 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 30.0 0.133 2220 40.0 0.178 2960 50.0 0.222 3700 60.0 0.267 4430 70.0 0.311 5170 80.0 0.356 5910 90.0 0.400 6650 100 0.445 7390 200 0.890 1.48 × 104 300 1.33 2.22 × 104 400 1.78 2.96 × 104 500 2.22 3.70 × 104 600 2.67 4.43 × 104 700 3.11 5.17 × 104 800 3.56 5.91 × 104 900 4.00 6.65 × 104 1000 4.45 7.39 × 104 2000 8.90 1.48 × 105 2350 10.5 1.74 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 30.0 0.326 3460 40.0 0.435 4620 50.0 0.543 5770 60.0 0.652 6930 70.0 0.760 8080 80.0 0.869 9240 90.0 0.978 1.04 × 104 100 1.09 1.15 × 104 200 2.17 2.31 × 104 300 3.26 3.46 × 104 400 4.35 4.62 × 104 500 5.43 5.77 × 104 600 6.52 6.93 × 104 700 7.60 8.08 × 104 800 8.69 9.24 × 104 900 9.78 1.04 × 105 964 10.5 1.11 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 30.0 0.676 4990 40.0 0.901 6650 50.0 1.13 8310 60.0 1.35 9980 70.0 1.58 1.16 × 104 80.0 1.80 1.33 × 104 90.0 2.03 1.50 × 104 100 2.25 1.66 × 104 200 4.51 3.33 × 104 300 6.76 4.99 × 104 400 9.01 6.65 × 104 465 10.5 7.73 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 30.0 1.25 6790 40.0 1.67 9050 50.0 2.09 1.13 × 104 60.0 2.50 1.36 × 104 70.0 2.92 1.58 × 104 80.0 3.34 1.81 × 104 90.0 3.76 2.04 × 104 100 4.17 2.26 × 104 200 8.35 4.53 × 104 251 10.5 5.68 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 30.0 2.14 8870 40.0 2.85 1.18 × 104 50.0 3.56 1.48 × 104 60.0 4.27 1.77 × 104 70.0 4.98 2.07 × 104 80.0 5.70 2.36 × 104 90.0 6.41 2.66 × 104 100 7.12 2.96 × 104 147 10.5 4.35 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 30.0 3.42 1.12 × 104 40.0 4.56 1.50 × 104 50.0 5.70 1.87 × 104 60.0 6.84 2.24 × 104 70.0 7.98 2.62 × 104 80.0 9.12 2.99 × 104 90.0 10.3 3.37 × 104 91.8 10.5 3.44 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 30.0 5.21 1.39 × 104 40.0 6.95 1.85 × 104 50.0 8.69 2.31 × 104 60.0 10.4 2.77 × 104 60.2 10.5 2.78 × 104