Wide Flange Steel I Beam: W8 × 48

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W8 × 48
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 = 184 in4) for the W8 × 48 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: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 48.0 6.24 × 10-6 15.0 50.0 6.50 × 10-6 15.6 60.0 7.80 × 10-6 18.7 70.0 9.11 × 10-6 21.8 80.0 1.04 × 10-5 24.9 90.0 1.17 × 10-5 28.1 100 1.30 × 10-5 31.2 200 2.60 × 10-5 62.4 300 3.90 × 10-5 93.5 400 5.20 × 10-5 125 500 6.50 × 10-5 156 600 7.80 × 10-5 187 700 9.11 × 10-5 218 800 1.04 × 10-4 249 900 1.17 × 10-4 281 1000 1.30 × 10-4 312 2000 2.60 × 10-4 624 3000 3.90 × 10-4 935 4000 5.20 × 10-4 1250 5000 6.50 × 10-4 1560 6000 7.80 × 10-4 1870 7000 9.11 × 10-4 2180 8000 0.00104 2490 9000 0.00117 2810 1.00 × 104 0.00130 3120 2.00 × 104 0.00260 6240 3.00 × 104 0.00390 9350 4.00 × 104 0.00520 1.25 × 104 5.00 × 104 0.00650 1.56 × 104 6.00 × 104 0.00780 1.87 × 104 7.00 × 104 0.00911 2.18 × 104 8.00 × 104 0.0104 2.49 × 104 9.00 × 104 0.0117 2.81 × 104 1.00 × 105 0.0130 3.12 × 104 2.00 × 105 0.0260 6.24 × 104 3.00 × 105 0.0390 9.35 × 104 4.00 × 105 0.0520 1.25 × 105 5.00 × 105 0.0650 1.56 × 105 6.00 × 105 0.0780 1.87 × 105 7.00 × 105 0.0911 2.18 × 105 8.00 × 105 0.104 2.49 × 105 9.00 × 105 0.117 2.81 × 105 9.53 × 105 0.124 2.97 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 48.0 4.82 × 10-5 41.6 50.0 5.02 × 10-5 43.3 60.0 6.02 × 10-5 52.0 70.0 7.03 × 10-5 60.6 80.0 8.03 × 10-5 69.3 90.0 9.03 × 10-5 78.0 100 1.00 × 10-4 86.6 200 2.01 × 10-4 173 300 3.01 × 10-4 260 400 4.01 × 10-4 346 500 5.02 × 10-4 433 600 6.02 × 10-4 520 700 7.03 × 10-4 606 800 8.03 × 10-4 693 900 9.03 × 10-4 780 1000 0.00100 866 2000 0.00201 1730 3000 0.00301 2600 4000 0.00401 3460 5000 0.00502 4330 6000 0.00602 5200 7000 0.00703 6060 8000 0.00803 6930 9000 0.00903 7800 1.00 × 104 0.0100 8660 2.00 × 104 0.0201 1.73 × 104 3.00 × 104 0.0301 2.60 × 104 4.00 × 104 0.0401 3.46 × 104 5.00 × 104 0.0502 4.33 × 104 6.00 × 104 0.0602 5.20 × 104 7.00 × 104 0.0703 6.06 × 104 8.00 × 104 0.0803 6.93 × 104 9.00 × 104 0.0903 7.80 × 104 1.00 × 105 0.100 8.66 × 104 2.00 × 105 0.201 1.73 × 105 3.00 × 105 0.301 2.60 × 105 3.43 × 105 0.344 2.97 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 48.0 7.71 × 10-4 166 50.0 8.03 × 10-4 173 60.0 9.64 × 10-4 208 70.0 0.00112 243 80.0 0.00128 277 90.0 0.00145 312 100 0.00161 346 200 0.00321 693 300 0.00482 1040 400 0.00642 1390 500 0.00803 1730 600 0.00964 2080 700 0.0112 2430 800 0.0128 2770 900 0.0145 3120 1000 0.0161 3460 2000 0.0321 6930 3000 0.0482 1.04 × 104 4000 0.0642 1.39 × 104 5000 0.0803 1.73 × 104 6000 0.0964 2.08 × 104 7000 0.112 2.43 × 104 8000 0.128 2.77 × 104 9000 0.145 3.12 × 104 1.00 × 104 0.161 3.46 × 104 2.00 × 104 0.321 6.93 × 104 3.00 × 104 0.482 1.04 × 105 4.00 × 104 0.642 1.39 × 105 5.00 × 104 0.803 1.73 × 105 6.00 × 104 0.964 2.08 × 105 7.00 × 104 1.12 2.43 × 105 8.00 × 104 1.28 2.77 × 105 8.57 × 104 1.38 2.97 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 48.0 0.00390 374 50.0 0.00406 390 60.0 0.00488 468 70.0 0.00569 546 80.0 0.00650 624 90.0 0.00732 702 100 0.00813 780 200 0.0163 1560 300 0.0244 2340 400 0.0325 3120 500 0.0406 3900 600 0.0488 4680 700 0.0569 5460 800 0.0650 6240 900 0.0732 7020 1000 0.0813 7800 2000 0.163 1.56 × 104 3000 0.244 2.34 × 104 4000 0.325 3.12 × 104 5000 0.406 3.90 × 104 6000 0.488 4.68 × 104 7000 0.569 5.46 × 104 8000 0.650 6.24 × 104 9000 0.732 7.02 × 104 1.00 × 104 0.813 7.80 × 104 2.00 × 104 1.63 1.56 × 105 3.00 × 104 2.44 2.34 × 105 3.81 × 104 3.10 2.97 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 48.0 0.0123 665 50.0 0.0128 693 60.0 0.0154 832 70.0 0.0180 970 80.0 0.0206 1110 90.0 0.0231 1250 100 0.0257 1390 200 0.0514 2770 300 0.0771 4160 400 0.103 5540 500 0.128 6930 600 0.154 8320 700 0.180 9700 800 0.206 1.11 × 104 900 0.231 1.25 × 104 1000 0.257 1.39 × 104 2000 0.514 2.77 × 104 3000 0.771 4.16 × 104 4000 1.03 5.54 × 104 5000 1.28 6.93 × 104 6000 1.54 8.32 × 104 7000 1.80 9.70 × 104 8000 2.06 1.11 × 105 9000 2.31 1.25 × 105 1.00 × 104 2.57 1.39 × 105 2.00 × 104 5.14 2.77 × 105 2.14 × 104 5.51 2.97 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 48.0 0.0301 1040 50.0 0.0314 1080 60.0 0.0376 1300 70.0 0.0439 1520 80.0 0.0502 1730 90.0 0.0565 1950 100 0.0627 2170 200 0.125 4330 300 0.188 6500 400 0.251 8660 500 0.314 1.08 × 104 600 0.376 1.30 × 104 700 0.439 1.52 × 104 800 0.502 1.73 × 104 900 0.565 1.95 × 104 1000 0.627 2.17 × 104 2000 1.25 4.33 × 104 3000 1.88 6.50 × 104 4000 2.51 8.66 × 104 5000 3.14 1.08 × 105 6000 3.76 1.30 × 105 7000 4.39 1.52 × 105 8000 5.02 1.73 × 105 9000 5.65 1.95 × 105 1.00 × 104 6.27 2.17 × 105 1.37 × 104 8.61 2.97 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 48.0 0.0624 1500 50.0 0.0650 1560 60.0 0.0780 1870 70.0 0.0911 2180 80.0 0.104 2490 90.0 0.117 2810 100 0.130 3120 200 0.260 6240 300 0.390 9350 400 0.520 1.25 × 104 500 0.650 1.56 × 104 600 0.780 1.87 × 104 700 0.911 2.18 × 104 800 1.04 2.49 × 104 900 1.17 2.81 × 104 1000 1.30 3.12 × 104 2000 2.60 6.24 × 104 3000 3.90 9.35 × 104 4000 5.20 1.25 × 105 5000 6.50 1.56 × 105 6000 7.80 1.87 × 105 6530 8.50 2.04 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 48.0 0.197 2660 50.0 0.206 2770 60.0 0.247 3330 70.0 0.288 3880 80.0 0.329 4430 90.0 0.370 4990 100 0.411 5540 200 0.822 1.11 × 104 300 1.23 1.66 × 104 400 1.64 2.22 × 104 500 2.06 2.77 × 104 600 2.47 3.33 × 104 700 2.88 3.88 × 104 800 3.29 4.43 × 104 900 3.70 4.99 × 104 1000 4.11 5.54 × 104 2000 8.22 1.11 × 105 2070 8.50 1.15 × 105
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 48.0 0.482 4160 50.0 0.502 4330 60.0 0.602 5200 70.0 0.703 6060 80.0 0.803 6930 90.0 0.903 7800 100 1.00 8660 200 2.01 1.73 × 104 300 3.01 2.60 × 104 400 4.01 3.46 × 104 500 5.02 4.33 × 104 600 6.02 5.20 × 104 700 7.03 6.06 × 104 800 8.03 6.93 × 104 847 8.50 7.34 × 104
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 48.0 0.999 5990 50.0 1.04 6240 60.0 1.25 7480 70.0 1.46 8730 80.0 1.67 9980 90.0 1.87 1.12 × 104 100 2.08 1.25 × 104 200 4.16 2.49 × 104 300 6.24 3.74 × 104 400 8.33 4.99 × 104 408 8.50 5.09 × 104
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 48.0 1.85 8150 50.0 1.93 8490 60.0 2.31 1.02 × 104 70.0 2.70 1.19 × 104 80.0 3.08 1.36 × 104 90.0 3.47 1.53 × 104 100 3.86 1.70 × 104 200 7.71 3.40 × 104 220 8.50 3.74 × 104
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 48.0 3.16 1.06 × 104 50.0 3.29 1.11 × 104 60.0 3.95 1.33 × 104 70.0 4.60 1.55 × 104 80.0 5.26 1.77 × 104 90.0 5.92 2.00 × 104 100 6.58 2.22 × 104 129 8.50 2.87 × 104
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 48.0 5.06 1.35 × 104 50.0 5.27 1.40 × 104 60.0 6.32 1.68 × 104 70.0 7.38 1.96 × 104 80.0 8.43 2.25 × 104 80.7 8.50 2.26 × 104
 Steel I Beam: W8 × 48 (Wide Flange 8 inch tall × 48 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 48.0 7.71 1.66 × 104 50.0 8.03 1.73 × 104 52.9 8.50 1.83 × 104