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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three 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 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 = 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 5.51 × 10-6 9.98 40.0 7.35 × 10-6 13.3 50.0 9.19 × 10-6 16.6 60.0 1.10 × 10-5 20.0 70.0 1.29 × 10-5 23.3 80.0 1.47 × 10-5 26.6 90.0 1.65 × 10-5 29.9 100 1.84 × 10-5 33.3 200 3.68 × 10-5 66.5 300 5.51 × 10-5 99.8 400 7.35 × 10-5 133 500 9.19 × 10-5 166 600 1.10 × 10-4 200 700 1.29 × 10-4 233 800 1.47 × 10-4 266 900 1.65 × 10-4 299 1000 1.84 × 10-4 333 2000 3.68 × 10-4 665 3000 5.51 × 10-4 998 4000 7.35 × 10-4 1330 5000 9.19 × 10-4 1660 6000 0.00110 2000 7000 0.00129 2330 8000 0.00147 2660 9000 0.00165 2990 1.00 × 104 0.00184 3330 2.00 × 104 0.00368 6650 3.00 × 104 0.00551 9980 4.00 × 104 0.00735 1.33 × 104 5.00 × 104 0.00919 1.66 × 104 6.00 × 104 0.0110 2.00 × 104 7.00 × 104 0.0129 2.33 × 104 8.00 × 104 0.0147 2.66 × 104 9.00 × 104 0.0165 2.99 × 104 1.00 × 105 0.0184 3.33 × 104 2.00 × 105 0.0368 6.65 × 104 3.00 × 105 0.0551 9.98 × 104 4.00 × 105 0.0735 1.33 × 105 5.00 × 105 0.0919 1.66 × 105 6.00 × 105 0.110 2.00 × 105 7.00 × 105 0.129 2.33 × 105 8.00 × 105 0.147 2.66 × 105 8.93 × 105 0.164 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 4.26 × 10-5 27.7 40.0 5.67 × 10-5 37.0 50.0 7.09 × 10-5 46.2 60.0 8.51 × 10-5 55.4 70.0 9.93 × 10-5 64.7 80.0 1.13 × 10-4 73.9 90.0 1.28 × 10-4 83.1 100 1.42 × 10-4 92.4 200 2.84 × 10-4 185 300 4.26 × 10-4 277 400 5.67 × 10-4 370 500 7.09 × 10-4 462 600 8.51 × 10-4 554 700 9.93 × 10-4 647 800 0.00113 739 900 0.00128 831 1000 0.00142 924 2000 0.00284 1850 3000 0.00426 2770 4000 0.00567 3700 5000 0.00709 4620 6000 0.00851 5540 7000 0.00993 6470 8000 0.0113 7390 9000 0.0128 8310 1.00 × 104 0.0142 9240 2.00 × 104 0.0284 1.85 × 104 3.00 × 104 0.0426 2.77 × 104 4.00 × 104 0.0567 3.70 × 104 5.00 × 104 0.0709 4.62 × 104 6.00 × 104 0.0851 5.54 × 104 7.00 × 104 0.0993 6.47 × 104 8.00 × 104 0.113 7.39 × 104 9.00 × 104 0.128 8.31 × 104 1.00 × 105 0.142 9.24 × 104 2.00 × 105 0.284 1.85 × 105 3.00 × 105 0.426 2.77 × 105 3.22 × 105 0.456 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 6.81 × 10-4 111 40.0 9.08 × 10-4 148 50.0 0.00113 185 60.0 0.00136 222 70.0 0.00159 259 80.0 0.00182 296 90.0 0.00204 333 100 0.00227 370 200 0.00454 739 300 0.00681 1110 400 0.00908 1480 500 0.0113 1850 600 0.0136 2220 700 0.0159 2590 800 0.0182 2960 900 0.0204 3330 1000 0.0227 3700 2000 0.0454 7390 3000 0.0681 1.11 × 104 4000 0.0908 1.48 × 104 5000 0.113 1.85 × 104 6000 0.136 2.22 × 104 7000 0.159 2.59 × 104 8000 0.182 2.96 × 104 9000 0.204 3.33 × 104 1.00 × 104 0.227 3.70 × 104 2.00 × 104 0.454 7.39 × 104 3.00 × 104 0.681 1.11 × 105 4.00 × 104 0.908 1.48 × 105 5.00 × 104 1.13 1.85 × 105 6.00 × 104 1.36 2.22 × 105 7.00 × 104 1.59 2.59 × 105 8.00 × 104 1.82 2.96 × 105 8.04 × 104 1.82 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 0.00345 249 40.0 0.00460 333 50.0 0.00574 416 60.0 0.00689 499 70.0 0.00804 582 80.0 0.00919 665 90.0 0.0103 748 100 0.0115 831 200 0.0230 1660 300 0.0345 2490 400 0.0460 3330 500 0.0574 4160 600 0.0689 4990 700 0.0804 5820 800 0.0919 6650 900 0.103 7480 1000 0.115 8310 2000 0.230 1.66 × 104 3000 0.345 2.49 × 104 4000 0.460 3.33 × 104 5000 0.574 4.16 × 104 6000 0.689 4.99 × 104 7000 0.804 5.82 × 104 8000 0.919 6.65 × 104 9000 1.03 7.48 × 104 1.00 × 104 1.15 8.31 × 104 2.00 × 104 2.30 1.66 × 105 3.00 × 104 3.45 2.49 × 105 3.57 × 104 4.10 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 0.0109 443 40.0 0.0145 591 50.0 0.0182 739 60.0 0.0218 887 70.0 0.0254 1030 80.0 0.0290 1180 90.0 0.0327 1330 100 0.0363 1480 200 0.0726 2960 300 0.109 4430 400 0.145 5910 500 0.182 7390 600 0.218 8870 700 0.254 1.03 × 104 800 0.290 1.18 × 104 900 0.327 1.33 × 104 1000 0.363 1.48 × 104 2000 0.726 2.96 × 104 3000 1.09 4.43 × 104 4000 1.45 5.91 × 104 5000 1.82 7.39 × 104 6000 2.18 8.87 × 104 7000 2.54 1.03 × 105 8000 2.90 1.18 × 105 9000 3.27 1.33 × 105 1.00 × 104 3.63 1.48 × 105 2.00 × 104 7.26 2.96 × 105 2.01 × 104 7.30 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 0.0266 693 40.0 0.0355 924 50.0 0.0443 1150 60.0 0.0532 1390 70.0 0.0621 1620 80.0 0.0709 1850 90.0 0.0798 2080 100 0.0886 2310 200 0.177 4620 300 0.266 6930 400 0.355 9240 500 0.443 1.15 × 104 600 0.532 1.39 × 104 700 0.621 1.62 × 104 800 0.709 1.85 × 104 900 0.798 2.08 × 104 1000 0.886 2.31 × 104 2000 1.77 4.62 × 104 3000 2.66 6.93 × 104 4000 3.55 9.24 × 104 5000 4.43 1.15 × 105 6000 5.32 1.39 × 105 7000 6.21 1.62 × 105 8000 7.09 1.85 × 105 9000 7.98 2.08 × 105 1.00 × 104 8.86 2.31 × 105 1.29 × 104 11.4 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 0.0551 998 40.0 0.0735 1330 50.0 0.0919 1660 60.0 0.110 2000 70.0 0.129 2330 80.0 0.147 2660 90.0 0.165 2990 100 0.184 3330 200 0.368 6650 300 0.551 9980 400 0.735 1.33 × 104 500 0.919 1.66 × 104 600 1.10 2.00 × 104 700 1.29 2.33 × 104 800 1.47 2.66 × 104 900 1.65 2.99 × 104 1000 1.84 3.33 × 104 2000 3.68 6.65 × 104 3000 5.51 9.98 × 104 4000 7.35 1.33 × 105 5000 9.19 1.66 × 105 5700 10.5 1.89 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 30.0 0.174 1770 40.0 0.232 2360 50.0 0.290 2960 60.0 0.349 3550 70.0 0.407 4140 80.0 0.465 4730 90.0 0.523 5320 100 0.581 5910 200 1.16 1.18 × 104 300 1.74 1.77 × 104 400 2.32 2.36 × 104 500 2.90 2.96 × 104 600 3.49 3.55 × 104 700 4.07 4.14 × 104 800 4.65 4.73 × 104 900 5.23 5.32 × 104 1000 5.81 5.91 × 104 1800 10.5 1.07 × 105
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 30.0 0.426 2770 40.0 0.567 3700 50.0 0.709 4620 60.0 0.851 5540 70.0 0.993 6470 80.0 1.13 7390 90.0 1.28 8310 100 1.42 9240 200 2.84 1.85 × 104 300 4.26 2.77 × 104 400 5.67 3.70 × 104 500 7.09 4.62 × 104 600 8.51 5.54 × 104 700 9.93 6.47 × 104 738 10.5 6.82 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 30.0 0.882 3990 40.0 1.18 5320 50.0 1.47 6650 60.0 1.76 7980 70.0 2.06 9310 80.0 2.35 1.06 × 104 90.0 2.65 1.20 × 104 100 2.94 1.33 × 104 200 5.88 2.66 × 104 300 8.82 3.99 × 104 356 10.5 4.74 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 30.0 1.63 5430 40.0 2.18 7240 50.0 2.72 9050 60.0 3.27 1.09 × 104 70.0 3.81 1.27 × 104 80.0 4.36 1.45 × 104 90.0 4.90 1.63 × 104 100 5.45 1.81 × 104 192 10.5 3.48 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 30.0 2.79 7090 40.0 3.72 9460 50.0 4.65 1.18 × 104 60.0 5.58 1.42 × 104 70.0 6.51 1.66 × 104 80.0 7.44 1.89 × 104 90.0 8.37 2.13 × 104 100 9.30 2.36 × 104 113 10.5 2.66 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 30.0 4.47 8980 40.0 5.96 1.20 × 104 50.0 7.44 1.50 × 104 60.0 8.93 1.80 × 104 70.0 10.4 2.10 × 104 70.3 10.5 2.10 × 104
 Steel I Beam: W10 × 30 (Wide Flange 10 inch tall × 30 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 30.0 6.81 1.11 × 104 40.0 9.08 1.48 × 104 46.1 10.5 1.70 × 104
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Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

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Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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