Wide Flange Steel I Beam: W6 × 15

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Wide Flange Steel I Beam » W6 × 15
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 29.1 in4) for the W6 × 15 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: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 15.0 1.49 × 10-5 17.9 20.0 1.99 × 10-5 23.8 30.0 2.98 × 10-5 35.7 40.0 3.98 × 10-5 47.6 50.0 4.97 × 10-5 59.5 60.0 5.97 × 10-5 71.4 70.0 6.96 × 10-5 83.3 80.0 7.96 × 10-5 95.2 90.0 8.95 × 10-5 107 100 9.95 × 10-5 119 200 1.99 × 10-4 238 300 2.98 × 10-4 357 400 3.98 × 10-4 476 500 4.97 × 10-4 595 600 5.97 × 10-4 714 700 6.96 × 10-4 833 800 7.96 × 10-4 952 900 8.95 × 10-4 1070 1000 9.95 × 10-4 1190 2000 0.00199 2380 3000 0.00298 3570 4000 0.00398 4760 5000 0.00497 5950 6000 0.00597 7140 7000 0.00696 8330 8000 0.00796 9520 9000 0.00895 1.07 × 104 1.00 × 104 0.00995 1.19 × 104 2.00 × 104 0.0199 2.38 × 104 3.00 × 104 0.0298 3.57 × 104 4.00 × 104 0.0398 4.76 × 104 5.00 × 104 0.0497 5.95 × 104 6.00 × 104 0.0597 7.14 × 104 7.00 × 104 0.0696 8.33 × 104 8.00 × 104 0.0796 9.52 × 104 9.00 × 104 0.0895 1.07 × 105 1.00 × 105 0.0995 1.19 × 105 2.00 × 105 0.199 2.38 × 105 2.50 × 105 0.248 2.97 × 105
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 15.0 1.15 × 10-4 49.6 20.0 1.54 × 10-4 66.1 30.0 2.30 × 10-4 99.2 40.0 3.07 × 10-4 132 50.0 3.84 × 10-4 165 60.0 4.61 × 10-4 198 70.0 5.37 × 10-4 231 80.0 6.14 × 10-4 265 90.0 6.91 × 10-4 298 100 7.68 × 10-4 331 200 0.00154 661 300 0.00230 992 400 0.00307 1320 500 0.00384 1650 600 0.00461 1980 700 0.00537 2310 800 0.00614 2650 900 0.00691 2980 1000 0.00768 3310 2000 0.0154 6610 3000 0.0230 9920 4000 0.0307 1.32 × 104 5000 0.0384 1.65 × 104 6000 0.0461 1.98 × 104 7000 0.0537 2.31 × 104 8000 0.0614 2.65 × 104 9000 0.0691 2.98 × 104 1.00 × 104 0.0768 3.31 × 104 2.00 × 104 0.154 6.61 × 104 3.00 × 104 0.230 9.92 × 104 4.00 × 104 0.307 1.32 × 105 5.00 × 104 0.384 1.65 × 105 6.00 × 104 0.461 1.98 × 105 7.00 × 104 0.537 2.31 × 105 8.00 × 104 0.614 2.65 × 105 8.98 × 104 0.690 2.97 × 105
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 15.0 0.00184 198 20.0 0.00246 265 30.0 0.00368 397 40.0 0.00491 529 50.0 0.00614 661 60.0 0.00737 794 70.0 0.00860 926 80.0 0.00983 1060 90.0 0.0111 1190 100 0.0123 1320 200 0.0246 2650 300 0.0368 3970 400 0.0491 5290 500 0.0614 6610 600 0.0737 7940 700 0.0860 9260 800 0.0983 1.06 × 104 900 0.111 1.19 × 104 1000 0.123 1.32 × 104 2000 0.246 2.65 × 104 3000 0.368 3.97 × 104 4000 0.491 5.29 × 104 5000 0.614 6.61 × 104 6000 0.737 7.94 × 104 7000 0.860 9.26 × 104 8000 0.983 1.06 × 105 9000 1.11 1.19 × 105 1.00 × 104 1.23 1.32 × 105 2.00 × 104 2.46 2.65 × 105 2.25 × 104 2.76 2.97 × 105
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 15.0 0.00933 446 20.0 0.0124 595 30.0 0.0187 893 40.0 0.0249 1190 50.0 0.0311 1490 60.0 0.0373 1790 70.0 0.0435 2080 80.0 0.0497 2380 90.0 0.0560 2680 100 0.0622 2980 200 0.124 5950 300 0.187 8930 400 0.249 1.19 × 104 500 0.311 1.49 × 104 600 0.373 1.79 × 104 700 0.435 2.08 × 104 800 0.497 2.38 × 104 900 0.560 2.68 × 104 1000 0.622 2.98 × 104 2000 1.24 5.95 × 104 3000 1.87 8.93 × 104 4000 2.49 1.19 × 105 5000 3.11 1.49 × 105 6000 3.73 1.79 × 105 7000 4.35 2.08 × 105 8000 4.97 2.38 × 105 9000 5.60 2.68 × 105 9980 6.21 2.97 × 105
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 15.0 0.0295 794 20.0 0.0393 1060 30.0 0.0590 1590 40.0 0.0786 2120 50.0 0.0983 2650 60.0 0.118 3170 70.0 0.138 3700 80.0 0.157 4230 90.0 0.177 4760 100 0.197 5290 200 0.393 1.06 × 104 300 0.590 1.59 × 104 400 0.786 2.12 × 104 500 0.983 2.65 × 104 600 1.18 3.17 × 104 700 1.38 3.70 × 104 800 1.57 4.23 × 104 900 1.77 4.76 × 104 1000 1.97 5.29 × 104 2000 3.93 1.06 × 105 3000 5.90 1.59 × 105 3050 5.99 1.61 × 105
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 15.0 0.0720 1240 20.0 0.0960 1650 30.0 0.144 2480 40.0 0.192 3310 50.0 0.240 4130 60.0 0.288 4960 70.0 0.336 5790 80.0 0.384 6610 90.0 0.432 7440 100 0.480 8270 200 0.960 1.65 × 104 300 1.44 2.48 × 104 400 1.92 3.31 × 104 500 2.40 4.13 × 104 600 2.88 4.96 × 104 700 3.36 5.79 × 104 800 3.84 6.61 × 104 900 4.32 7.44 × 104 1000 4.80 8.27 × 104 1250 5.99 1.03 × 105
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 15.0 0.149 1790 20.0 0.199 2380 30.0 0.298 3570 40.0 0.398 4760 50.0 0.497 5950 60.0 0.597 7140 70.0 0.696 8330 80.0 0.796 9520 90.0 0.895 1.07 × 104 100 0.995 1.19 × 104 200 1.99 2.38 × 104 300 2.98 3.57 × 104 400 3.98 4.76 × 104 500 4.97 5.95 × 104 600 5.97 7.14 × 104 602 5.99 7.17 × 104
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 15.0 0.472 3170 20.0 0.629 4230 30.0 0.943 6350 40.0 1.26 8470 50.0 1.57 1.06 × 104 60.0 1.89 1.27 × 104 70.0 2.20 1.48 × 104 80.0 2.52 1.69 × 104 90.0 2.83 1.90 × 104 100 3.14 2.12 × 104 191 5.99 4.03 × 104
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 15.0 1.15 4960 20.0 1.54 6610 30.0 2.30 9920 40.0 3.07 1.32 × 104 50.0 3.84 1.65 × 104 60.0 4.61 1.98 × 104 70.0 5.37 2.31 × 104 78.0 5.99 2.58 × 104
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 15.0 2.39 7140 20.0 3.18 9520 30.0 4.78 1.43 × 104 37.6 5.99 1.79 × 104
 Steel I Beam: W6 × 15 (Wide Flange 6 inch tall × 15 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 15.0 4.42 9720 20.0 5.90 1.30 × 104 20.3 5.99 1.32 × 104