Wide Flange Steel I Beam: W6 × 9

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Wide Flange Steel I Beam » W6 × 9
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 = 16.4 in4) for the W6 × 9 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 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 9.00 1.59 × 10-5 18.7 10.0 1.77 × 10-5 20.8 20.0 3.53 × 10-5 41.6 30.0 5.30 × 10-5 62.4 40.0 7.06 × 10-5 83.2 50.0 8.83 × 10-5 104 60.0 1.06 × 10-4 125 70.0 1.24 × 10-4 146 80.0 1.41 × 10-4 166 90.0 1.59 × 10-4 187 100 1.77 × 10-4 208 200 3.53 × 10-4 416 300 5.30 × 10-4 624 400 7.06 × 10-4 832 500 8.83 × 10-4 1040 600 0.00106 1250 700 0.00124 1460 800 0.00141 1660 900 0.00159 1870 1000 0.00177 2080 2000 0.00353 4160 3000 0.00530 6240 4000 0.00706 8320 5000 0.00883 1.04 × 104 6000 0.0106 1.25 × 104 7000 0.0124 1.46 × 104 8000 0.0141 1.66 × 104 9000 0.0159 1.87 × 104 1.00 × 104 0.0177 2.08 × 104 2.00 × 104 0.0353 4.16 × 104 3.00 × 104 0.0530 6.24 × 104 4.00 × 104 0.0706 8.32 × 104 5.00 × 104 0.0883 1.04 × 105 6.00 × 104 0.106 1.25 × 105 7.00 × 104 0.124 1.46 × 105 8.00 × 104 0.141 1.66 × 105 9.00 × 104 0.159 1.87 × 105 1.00 × 105 0.177 2.08 × 105 1.43 × 105 0.252 2.97 × 105
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 9.00 1.23 × 10-4 52.0 10.0 1.36 × 10-4 57.8 20.0 2.72 × 10-4 116 30.0 4.09 × 10-4 173 40.0 5.45 × 10-4 231 50.0 6.81 × 10-4 289 60.0 8.17 × 10-4 347 70.0 9.53 × 10-4 405 80.0 0.00109 462 90.0 0.00123 520 100 0.00136 578 200 0.00272 1160 300 0.00409 1730 400 0.00545 2310 500 0.00681 2890 600 0.00817 3470 700 0.00953 4050 800 0.0109 4620 900 0.0123 5200 1000 0.0136 5780 2000 0.0272 1.16 × 104 3000 0.0409 1.73 × 104 4000 0.0545 2.31 × 104 5000 0.0681 2.89 × 104 6000 0.0817 3.47 × 104 7000 0.0953 4.05 × 104 8000 0.109 4.62 × 104 9000 0.123 5.20 × 104 1.00 × 104 0.136 5.78 × 104 2.00 × 104 0.272 1.16 × 105 3.00 × 104 0.409 1.73 × 105 4.00 × 104 0.545 2.31 × 105 5.00 × 104 0.681 2.89 × 105 5.14 × 104 0.700 2.97 × 105
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 9.00 0.00196 208 10.0 0.00218 231 20.0 0.00436 462 30.0 0.00654 694 40.0 0.00872 925 50.0 0.0109 1160 60.0 0.0131 1390 70.0 0.0153 1620 80.0 0.0174 1850 90.0 0.0196 2080 100 0.0218 2310 200 0.0436 4620 300 0.0654 6940 400 0.0872 9250 500 0.109 1.16 × 104 600 0.131 1.39 × 104 700 0.153 1.62 × 104 800 0.174 1.85 × 104 900 0.196 2.08 × 104 1000 0.218 2.31 × 104 2000 0.436 4.62 × 104 3000 0.654 6.94 × 104 4000 0.872 9.25 × 104 5000 1.09 1.16 × 105 6000 1.31 1.39 × 105 7000 1.53 1.62 × 105 8000 1.74 1.85 × 105 9000 1.96 2.08 × 105 1.00 × 104 2.18 2.31 × 105 1.28 × 104 2.80 2.97 × 105
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 9.00 0.00993 468 10.0 0.0110 520 20.0 0.0221 1040 30.0 0.0331 1560 40.0 0.0441 2080 50.0 0.0552 2600 60.0 0.0662 3120 70.0 0.0772 3640 80.0 0.0883 4160 90.0 0.0993 4680 100 0.110 5200 200 0.221 1.04 × 104 300 0.331 1.56 × 104 400 0.441 2.08 × 104 500 0.552 2.60 × 104 600 0.662 3.12 × 104 700 0.772 3.64 × 104 800 0.883 4.16 × 104 900 0.993 4.68 × 104 1000 1.10 5.20 × 104 2000 2.21 1.04 × 105 3000 3.31 1.56 × 105 4000 4.41 2.08 × 105 5000 5.52 2.60 × 105 5710 6.30 2.97 × 105
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 9.00 0.0314 832 10.0 0.0349 925 20.0 0.0697 1850 30.0 0.105 2770 40.0 0.139 3700 50.0 0.174 4620 60.0 0.209 5550 70.0 0.244 6470 80.0 0.279 7400 90.0 0.314 8320 100 0.349 9250 200 0.697 1.85 × 104 300 1.05 2.77 × 104 400 1.39 3.70 × 104 500 1.74 4.62 × 104 600 2.09 5.55 × 104 700 2.44 6.47 × 104 800 2.79 7.40 × 104 900 3.14 8.32 × 104 1000 3.49 9.25 × 104 1690 5.90 1.56 × 105
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 9.00 0.0766 1300 10.0 0.0851 1440 20.0 0.170 2890 30.0 0.255 4330 40.0 0.341 5780 50.0 0.426 7220 60.0 0.511 8670 70.0 0.596 1.01 × 104 80.0 0.681 1.16 × 104 90.0 0.766 1.30 × 104 100 0.851 1.44 × 104 200 1.70 2.89 × 104 300 2.55 4.33 × 104 400 3.41 5.78 × 104 500 4.26 7.22 × 104 600 5.11 8.67 × 104 693 5.90 1.00 × 105
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 9.00 0.159 1870 10.0 0.177 2080 20.0 0.353 4160 30.0 0.530 6240 40.0 0.706 8320 50.0 0.883 1.04 × 104 60.0 1.06 1.25 × 104 70.0 1.24 1.46 × 104 80.0 1.41 1.66 × 104 90.0 1.59 1.87 × 104 100 1.77 2.08 × 104 200 3.53 4.16 × 104 300 5.30 6.24 × 104 334 5.90 6.95 × 104
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 9.00 0.502 3330 10.0 0.558 3700 20.0 1.12 7400 30.0 1.67 1.11 × 104 40.0 2.23 1.48 × 104 50.0 2.79 1.85 × 104 60.0 3.35 2.22 × 104 70.0 3.91 2.59 × 104 80.0 4.46 2.96 × 104 90.0 5.02 3.33 × 104 100 5.58 3.70 × 104 106 5.90 3.91 × 104
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 9.00 1.23 5200 10.0 1.36 5780 20.0 2.72 1.16 × 104 30.0 4.09 1.73 × 104 40.0 5.45 2.31 × 104 43.3 5.90 2.50 × 104
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 9.00 2.54 7490 10.0 2.82 8320 20.0 5.65 1.66 × 104 20.9 5.90 1.74 × 104
 Steel I Beam: W6 × 9 (Wide Flange 6 inch tall × 9 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 9.00 4.71 1.02 × 104 10.0 5.23 1.13 × 104 11.3 5.90 1.28 × 104