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Wide Flange Steel I Beam: W12 × 53
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W12 × 53
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 w_mid and the maximum normal stress stress_max 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 = 425 in4) for the W12 × 53 Wide Flange Steel I Beam and the typical Young's modulus (E = 3.046 × 107 psi) of steels. Note that the typical yielding stress Yield 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.
L = 3 ft
L = 5 ft
L = 10 ft
L = 15 ft
L = 20 ft
L = 25 ft
L = 30 ft
L = 40 ft
L = 50 ft
L = 60 ft
L = 70 ft
L = 80 ft
L = 90 ft
L = 100 ft
L = 125 ft
   
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 2.98 × 10-6 10.2
60.0 3.38 × 10-6 11.5
70.0 3.94 × 10-6 13.4
80.0 4.51 × 10-6 15.3
90.0 5.07 × 10-6 17.2
100 5.63 × 10-6 19.2
200 1.13 × 10-5 38.3
300 1.69 × 10-5 57.5
400 2.25 × 10-5 76.6
500 2.82 × 10-5 95.8
600 3.38 × 10-5 115
700 3.94 × 10-5 134
800 4.51 × 10-5 153
900 5.07 × 10-5 172
1000 5.63 × 10-5 192
2000 1.13 × 10-4 383
3000 1.69 × 10-4 575
4000 2.25 × 10-4 766
5000 2.82 × 10-4 958
6000 3.38 × 10-4 1150
7000 3.94 × 10-4 1340
8000 4.51 × 10-4 1530
9000 5.07 × 10-4 1720
1.00 × 104 5.63 × 10-4 1920
2.00 × 104 0.00113 3830
3.00 × 104 0.00169 5750
4.00 × 104 0.00225 7660
5.00 × 104 0.00282 9580
6.00 × 104 0.00338 1.15 × 104
7.00 × 104 0.00394 1.34 × 104
8.00 × 104 0.00451 1.53 × 104
9.00 × 104 0.00507 1.72 × 104
1.00 × 105 0.00563 1.92 × 104
2.00 × 105 0.0113 3.83 × 104
3.00 × 105 0.0169 5.75 × 104
4.00 × 105 0.0225 7.66 × 104
5.00 × 105 0.0282 9.58 × 104
6.00 × 105 0.0338 1.15 × 105
7.00 × 105 0.0394 1.34 × 105
8.00 × 105 0.0451 1.53 × 105
9.00 × 105 0.0507 1.72 × 105
1.00 × 106 0.0563 1.92 × 105
1.55 × 106 0.0873 2.97 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 2.30 × 10-5 28.2
60.0 2.61 × 10-5 31.9
70.0 3.04 × 10-5 37.2
80.0 3.48 × 10-5 42.6
90.0 3.91 × 10-5 47.9
100 4.35 × 10-5 53.2
200 8.69 × 10-5 106
300 1.30 × 10-4 160
400 1.74 × 10-4 213
500 2.17 × 10-4 266
600 2.61 × 10-4 319
700 3.04 × 10-4 372
800 3.48 × 10-4 426
900 3.91 × 10-4 479
1000 4.35 × 10-4 532
2000 8.69 × 10-4 1060
3000 0.00130 1600
4000 0.00174 2130
5000 0.00217 2660
6000 0.00261 3190
7000 0.00304 3720
8000 0.00348 4260
9000 0.00391 4790
1.00 × 104 0.00435 5320
2.00 × 104 0.00869 1.06 × 104
3.00 × 104 0.0130 1.60 × 104
4.00 × 104 0.0174 2.13 × 104
5.00 × 104 0.0217 2.66 × 104
6.00 × 104 0.0261 3.19 × 104
7.00 × 104 0.0304 3.72 × 104
8.00 × 104 0.0348 4.26 × 104
9.00 × 104 0.0391 4.79 × 104
1.00 × 105 0.0435 5.32 × 104
2.00 × 105 0.0869 1.06 × 105
3.00 × 105 0.130 1.60 × 105
4.00 × 105 0.174 2.13 × 105
5.00 × 105 0.217 2.66 × 105
5.58 × 105 0.243 2.97 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 3.68 × 10-4 113
60.0 4.17 × 10-4 128
70.0 4.87 × 10-4 149
80.0 5.56 × 10-4 170
90.0 6.26 × 10-4 192
100 6.95 × 10-4 213
200 0.00139 426
300 0.00209 638
400 0.00278 851
500 0.00348 1060
600 0.00417 1280
700 0.00487 1490
800 0.00556 1700
900 0.00626 1920
1000 0.00695 2130
2000 0.0139 4260
3000 0.0209 6380
4000 0.0278 8510
5000 0.0348 1.06 × 104
6000 0.0417 1.28 × 104
7000 0.0487 1.49 × 104
8000 0.0556 1.70 × 104
9000 0.0626 1.92 × 104
1.00 × 104 0.0695 2.13 × 104
2.00 × 104 0.139 4.26 × 104
3.00 × 104 0.209 6.38 × 104
4.00 × 104 0.278 8.51 × 104
5.00 × 104 0.348 1.06 × 105
6.00 × 104 0.417 1.28 × 105
7.00 × 104 0.487 1.49 × 105
8.00 × 104 0.556 1.70 × 105
9.00 × 104 0.626 1.92 × 105
1.00 × 105 0.695 2.13 × 105
1.40 × 105 0.970 2.97 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.00187 254
60.0 0.00211 287
70.0 0.00246 335
80.0 0.00282 383
90.0 0.00317 431
100 0.00352 479
200 0.00704 958
300 0.0106 1440
400 0.0141 1920
500 0.0176 2390
600 0.0211 2870
700 0.0246 3350
800 0.0282 3830
900 0.0317 4310
1000 0.0352 4790
2000 0.0704 9580
3000 0.106 1.44 × 104
4000 0.141 1.92 × 104
5000 0.176 2.39 × 104
6000 0.211 2.87 × 104
7000 0.246 3.35 × 104
8000 0.282 3.83 × 104
9000 0.317 4.31 × 104
1.00 × 104 0.352 4.79 × 104
2.00 × 104 0.704 9.58 × 104
3.00 × 104 1.06 1.44 × 105
4.00 × 104 1.41 1.92 × 105
5.00 × 104 1.76 2.39 × 105
6.00 × 104 2.11 2.87 × 105
6.20 × 104 2.18 2.97 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.00590 451
60.0 0.00667 511
70.0 0.00779 596
80.0 0.00890 681
90.0 0.0100 766
100 0.0111 851
200 0.0222 1700
300 0.0334 2550
400 0.0445 3410
500 0.0556 4260
600 0.0667 5110
700 0.0779 5960
800 0.0890 6810
900 0.100 7660
1000 0.111 8510
2000 0.222 1.70 × 104
3000 0.334 2.55 × 104
4000 0.445 3.41 × 104
5000 0.556 4.26 × 104
6000 0.667 5.11 × 104
7000 0.779 5.96 × 104
8000 0.890 6.81 × 104
9000 1.00 7.66 × 104
1.00 × 104 1.11 8.51 × 104
2.00 × 104 2.22 1.70 × 105
3.00 × 104 3.34 2.55 × 105
3.49 × 104 3.88 2.97 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.0144 705
60.0 0.0163 798
70.0 0.0190 931
80.0 0.0217 1060
90.0 0.0244 1200
100 0.0272 1330
200 0.0543 2660
300 0.0815 3990
400 0.109 5320
500 0.136 6650
600 0.163 7980
700 0.190 9310
800 0.217 1.06 × 104
900 0.244 1.20 × 104
1000 0.272 1.33 × 104
2000 0.543 2.66 × 104
3000 0.815 3.99 × 104
4000 1.09 5.32 × 104
5000 1.36 6.65 × 104
6000 1.63 7.98 × 104
7000 1.90 9.31 × 104
8000 2.17 1.06 × 105
9000 2.44 1.20 × 105
1.00 × 104 2.72 1.33 × 105
2.00 × 104 5.43 2.66 × 105
2.23 × 104 6.06 2.97 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.0298 1020
60.0 0.0338 1150
70.0 0.0394 1340
80.0 0.0451 1530
90.0 0.0507 1720
100 0.0563 1920
200 0.113 3830
300 0.169 5750
400 0.225 7660
500 0.282 9580
600 0.338 1.15 × 104
700 0.394 1.34 × 104
800 0.451 1.53 × 104
900 0.507 1.72 × 104
1000 0.563 1.92 × 104
2000 1.13 3.83 × 104
3000 1.69 5.75 × 104
4000 2.25 7.66 × 104
5000 2.82 9.58 × 104
6000 3.38 1.15 × 105
7000 3.94 1.34 × 105
8000 4.51 1.53 × 105
9000 5.07 1.72 × 105
1.00 × 104 5.63 1.92 × 105
1.55 × 104 8.73 2.97 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.0943 1800
60.0 0.107 2040
70.0 0.125 2380
80.0 0.142 2720
90.0 0.160 3060
100 0.178 3410
200 0.356 6810
300 0.534 1.02 × 104
400 0.712 1.36 × 104
500 0.890 1.70 × 104
600 1.07 2.04 × 104
700 1.25 2.38 × 104
800 1.42 2.72 × 104
900 1.60 3.06 × 104
1000 1.78 3.41 × 104
2000 3.56 6.81 × 104
3000 5.34 1.02 × 105
4000 7.12 1.36 × 105
5000 8.90 1.70 × 105
6000 10.7 2.04 × 105
6780 12.1 2.31 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.230 2820
60.0 0.261 3190
70.0 0.304 3720
80.0 0.348 4260
90.0 0.391 4790
100 0.435 5320
200 0.869 1.06 × 104
300 1.30 1.60 × 104
400 1.74 2.13 × 104
500 2.17 2.66 × 104
600 2.61 3.19 × 104
700 3.04 3.72 × 104
800 3.48 4.26 × 104
900 3.91 4.79 × 104
1000 4.35 5.32 × 104
2000 8.69 1.06 × 105
2780 12.1 1.48 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.478 4060
60.0 0.541 4600
70.0 0.631 5360
80.0 0.721 6130
90.0 0.811 6900
100 0.901 7660
200 1.80 1.53 × 104
300 2.70 2.30 × 104
400 3.60 3.06 × 104
500 4.51 3.83 × 104
600 5.41 4.60 × 104
700 6.31 5.36 × 104
800 7.21 6.13 × 104
900 8.11 6.90 × 104
1000 9.01 7.66 × 104
1340 12.1 1.03 × 105
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 0.885 5530
60.0 1.00 6260
70.0 1.17 7300
80.0 1.34 8340
90.0 1.50 9390
100 1.67 1.04 × 104
200 3.34 2.09 × 104
300 5.01 3.13 × 104
400 6.68 4.17 × 104
500 8.35 5.21 × 104
600 10.0 6.26 × 104
700 11.7 7.30 × 104
722 12.1 7.53 × 104
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 1.51 7220
60.0 1.71 8170
70.0 1.99 9530
80.0 2.28 1.09 × 104
90.0 2.56 1.23 × 104
100 2.85 1.36 × 104
200 5.70 2.72 × 104
300 8.54 4.09 × 104
400 11.4 5.45 × 104
423 12.1 5.77 × 104
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 2.42 9140
60.0 2.74 1.03 × 104
70.0 3.19 1.21 × 104
80.0 3.65 1.38 × 104
90.0 4.11 1.55 × 104
100 4.56 1.72 × 104
200 9.12 3.45 × 104
264 12.1 4.56 × 104
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 3.68 1.13 × 104
60.0 4.17 1.28 × 104
70.0 4.87 1.49 × 104
80.0 5.56 1.70 × 104
90.0 6.26 1.92 × 104
100 6.95 2.13 × 104
173 12.1 3.69 × 104
Steel I Beam: W12 × 53 (Wide Flange 12 inch tall × 53 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
53.0 9.00 1.76 × 104
60.0 10.2 2.00 × 104
70.0 11.9 2.33 × 104
71.0 12.1 2.36 × 104
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