Wide Flange Steel I Beam: W6 × 20

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W6 × 20

For a simply supported beam in a single span, the maximum displacement and the maximum normal stress occur at the center of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 41.4 in4) for the W6 × 20 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 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 20.0 2.89 × 10-5 20.2 30.0 4.34 × 10-5 30.3 40.0 5.78 × 10-5 40.4 50.0 7.23 × 10-5 50.5 60.0 8.67 × 10-5 60.7 70.0 1.01 × 10-4 70.8 80.0 1.16 × 10-4 80.9 90.0 1.30 × 10-4 91.0 100 1.45 × 10-4 101 200 2.89 × 10-4 202 300 4.34 × 10-4 303 400 5.78 × 10-4 404 500 7.23 × 10-4 505 600 8.67 × 10-4 607 700 0.00101 708 800 0.00116 809 900 0.00130 910 1000 0.00145 1010 2000 0.00289 2020 3000 0.00434 3030 4000 0.00578 4040 5000 0.00723 5050 6000 0.00867 6070 7000 0.0101 7080 8000 0.0116 8090 9000 0.0130 9100 1.00 × 104 0.0145 1.01 × 104 2.00 × 104 0.0289 2.02 × 104 3.00 × 104 0.0434 3.03 × 104 4.00 × 104 0.0578 4.04 × 104 5.00 × 104 0.0723 5.05 × 104 6.00 × 104 0.0867 6.07 × 104 7.00 × 104 0.101 7.08 × 104 8.00 × 104 0.116 8.09 × 104 9.00 × 104 0.130 9.10 × 104 1.00 × 105 0.145 1.01 × 105 2.00 × 105 0.289 2.02 × 105 2.94 × 105 0.425 2.97 × 105
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 20.0 2.23 × 10-4 56.2 30.0 3.35 × 10-4 84.2 40.0 4.46 × 10-4 112 50.0 5.58 × 10-4 140 60.0 6.69 × 10-4 168 70.0 7.81 × 10-4 197 80.0 8.92 × 10-4 225 90.0 0.00100 253 100 0.00112 281 200 0.00223 562 300 0.00335 842 400 0.00446 1120 500 0.00558 1400 600 0.00669 1680 700 0.00781 1970 800 0.00892 2250 900 0.0100 2530 1000 0.0112 2810 2000 0.0223 5620 3000 0.0335 8420 4000 0.0446 1.12 × 104 5000 0.0558 1.40 × 104 6000 0.0669 1.68 × 104 7000 0.0781 1.97 × 104 8000 0.0892 2.25 × 104 9000 0.100 2.53 × 104 1.00 × 104 0.112 2.81 × 104 2.00 × 104 0.223 5.62 × 104 3.00 × 104 0.335 8.42 × 104 4.00 × 104 0.446 1.12 × 105 5.00 × 104 0.558 1.40 × 105 6.00 × 104 0.669 1.68 × 105 7.00 × 104 0.781 1.97 × 105 8.00 × 104 0.892 2.25 × 105 9.00 × 104 1.00 2.53 × 105 1.00 × 105 1.12 2.81 × 105 1.06 × 105 1.18 2.97 × 105
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 20.0 0.00357 225 30.0 0.00535 337 40.0 0.00714 449 50.0 0.00892 562 60.0 0.0107 674 70.0 0.0125 786 80.0 0.0143 899 90.0 0.0161 1010 100 0.0178 1120 200 0.0357 2250 300 0.0535 3370 400 0.0714 4490 500 0.0892 5620 600 0.107 6740 700 0.125 7860 800 0.143 8990 900 0.161 1.01 × 104 1000 0.178 1.12 × 104 2000 0.357 2.25 × 104 3000 0.535 3.37 × 104 4000 0.714 4.49 × 104 5000 0.892 5.62 × 104 6000 1.07 6.74 × 104 7000 1.25 7.86 × 104 8000 1.43 8.99 × 104 9000 1.61 1.01 × 105 1.00 × 104 1.78 1.12 × 105 2.00 × 104 3.57 2.25 × 105 2.64 × 104 4.72 2.97 × 105
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 20.0 0.0181 505 30.0 0.0271 758 40.0 0.0361 1010 50.0 0.0452 1260 60.0 0.0542 1520 70.0 0.0632 1770 80.0 0.0723 2020 90.0 0.0813 2270 100 0.0903 2530 200 0.181 5050 300 0.271 7580 400 0.361 1.01 × 104 500 0.452 1.26 × 104 600 0.542 1.52 × 104 700 0.632 1.77 × 104 800 0.723 2.02 × 104 900 0.813 2.27 × 104 1000 0.903 2.53 × 104 2000 1.81 5.05 × 104 3000 2.71 7.58 × 104 4000 3.61 1.01 × 105 5000 4.52 1.26 × 105 6000 5.42 1.52 × 105 6860 6.20 1.73 × 105
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 20.0 0.0571 899 30.0 0.0856 1350 40.0 0.114 1800 50.0 0.143 2250 60.0 0.171 2700 70.0 0.200 3140 80.0 0.228 3590 90.0 0.257 4040 100 0.285 4490 200 0.571 8990 300 0.856 1.35 × 104 400 1.14 1.80 × 104 500 1.43 2.25 × 104 600 1.71 2.70 × 104 700 2.00 3.14 × 104 800 2.28 3.59 × 104 900 2.57 4.04 × 104 1000 2.85 4.49 × 104 2000 5.71 8.99 × 104 2170 6.20 9.76 × 104
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 20.0 0.139 1400 30.0 0.209 2110 40.0 0.279 2810 50.0 0.349 3510 60.0 0.418 4210 70.0 0.488 4910 80.0 0.558 5620 90.0 0.627 6320 100 0.697 7020 200 1.39 1.40 × 104 300 2.09 2.11 × 104 400 2.79 2.81 × 104 500 3.49 3.51 × 104 600 4.18 4.21 × 104 700 4.88 4.91 × 104 800 5.58 5.62 × 104 890 6.20 6.24 × 104
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 20.0 0.289 2020 30.0 0.434 3030 40.0 0.578 4040 50.0 0.723 5050 60.0 0.867 6070 70.0 1.01 7080 80.0 1.16 8090 90.0 1.30 9100 100 1.45 1.01 × 104 200 2.89 2.02 × 104 300 4.34 3.03 × 104 400 5.78 4.04 × 104 429 6.20 4.34 × 104
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 20.0 0.914 3590 30.0 1.37 5390 40.0 1.83 7190 50.0 2.28 8990 60.0 2.74 1.08 × 104 70.0 3.20 1.26 × 104 80.0 3.65 1.44 × 104 90.0 4.11 1.62 × 104 100 4.57 1.80 × 104 136 6.20 2.44 × 104
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 20.0 2.23 5620 30.0 3.35 8420 40.0 4.46 1.12 × 104 50.0 5.58 1.40 × 104 55.6 6.20 1.56 × 104
 Steel I Beam: W6 × 20 (Wide Flange 6 inch tall × 20 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 20.0 4.63 8090 26.8 6.20 1.08 × 104