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Wide Flange Steel I Beam: W18 × 60
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W18 × 60
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in a single span, the maximum displacement w_max and the maximum normal stress stress_max occur at the center of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 984 in4) for the W18 × 60 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: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 3.65 × 10-6 7.51
70.0 4.26 × 10-6 8.76
80.0 4.86 × 10-6 10.0
90.0 5.47 × 10-6 11.3
100 6.08 × 10-6 12.5
200 1.22 × 10-5 25.0
300 1.82 × 10-5 37.5
400 2.43 × 10-5 50.0
500 3.04 × 10-5 62.6
600 3.65 × 10-5 75.1
700 4.26 × 10-5 87.6
800 4.86 × 10-5 100
900 5.47 × 10-5 113
1000 6.08 × 10-5 125
2000 1.22 × 10-4 250
3000 1.82 × 10-4 375
4000 2.43 × 10-4 500
5000 3.04 × 10-4 626
6000 3.65 × 10-4 751
7000 4.26 × 10-4 876
8000 4.86 × 10-4 1000
9000 5.47 × 10-4 1130
1.00 × 104 6.08 × 10-4 1250
2.00 × 104 0.00122 2500
3.00 × 104 0.00182 3750
4.00 × 104 0.00243 5000
5.00 × 104 0.00304 6260
6.00 × 104 0.00365 7510
7.00 × 104 0.00426 8760
8.00 × 104 0.00486 1.00 × 104
9.00 × 104 0.00547 1.13 × 104
1.00 × 105 0.00608 1.25 × 104
2.00 × 105 0.0122 2.50 × 104
3.00 × 105 0.0182 3.75 × 104
4.00 × 105 0.0243 5.00 × 104
5.00 × 105 0.0304 6.26 × 104
6.00 × 105 0.0365 7.51 × 104
7.00 × 105 0.0426 8.76 × 104
8.00 × 105 0.0486 1.00 × 105
9.00 × 105 0.0547 1.13 × 105
1.00 × 106 0.0608 1.25 × 105
2.00 × 106 0.122 2.50 × 105
2.37 × 106 0.144 2.97 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 2.82 × 10-5 20.9
70.0 3.28 × 10-5 24.3
80.0 3.75 × 10-5 27.8
90.0 4.22 × 10-5 31.3
100 4.69 × 10-5 34.8
200 9.38 × 10-5 69.5
300 1.41 × 10-4 104
400 1.88 × 10-4 139
500 2.35 × 10-4 174
600 2.82 × 10-4 209
700 3.28 × 10-4 243
800 3.75 × 10-4 278
900 4.22 × 10-4 313
1000 4.69 × 10-4 348
2000 9.38 × 10-4 695
3000 0.00141 1040
4000 0.00188 1390
5000 0.00235 1740
6000 0.00282 2090
7000 0.00328 2430
8000 0.00375 2780
9000 0.00422 3130
1.00 × 104 0.00469 3480
2.00 × 104 0.00938 6950
3.00 × 104 0.0141 1.04 × 104
4.00 × 104 0.0188 1.39 × 104
5.00 × 104 0.0235 1.74 × 104
6.00 × 104 0.0282 2.09 × 104
7.00 × 104 0.0328 2.43 × 104
8.00 × 104 0.0375 2.78 × 104
9.00 × 104 0.0422 3.13 × 104
1.00 × 105 0.0469 3.48 × 104
2.00 × 105 0.0938 6.95 × 104
3.00 × 105 0.141 1.04 × 105
4.00 × 105 0.188 1.39 × 105
5.00 × 105 0.235 1.74 × 105
6.00 × 105 0.282 2.09 × 105
7.00 × 105 0.328 2.43 × 105
8.00 × 105 0.375 2.78 × 105
8.55 × 105 0.401 2.97 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 4.50 × 10-4 83.4
70.0 5.26 × 10-4 97.3
80.0 6.01 × 10-4 111
90.0 6.76 × 10-4 125
100 7.51 × 10-4 139
200 0.00150 278
300 0.00225 417
400 0.00300 556
500 0.00375 695
600 0.00450 834
700 0.00526 973
800 0.00601 1110
900 0.00676 1250
1000 0.00751 1390
2000 0.0150 2780
3000 0.0225 4170
4000 0.0300 5560
5000 0.0375 6950
6000 0.0450 8340
7000 0.0526 9730
8000 0.0601 1.11 × 104
9000 0.0676 1.25 × 104
1.00 × 104 0.0751 1.39 × 104
2.00 × 104 0.150 2.78 × 104
3.00 × 104 0.225 4.17 × 104
4.00 × 104 0.300 5.56 × 104
5.00 × 104 0.375 6.95 × 104
6.00 × 104 0.450 8.34 × 104
7.00 × 104 0.526 9.73 × 104
8.00 × 104 0.601 1.11 × 105
9.00 × 104 0.676 1.25 × 105
1.00 × 105 0.751 1.39 × 105
2.00 × 105 1.50 2.78 × 105
2.14 × 105 1.60 2.97 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 0.00228 188
70.0 0.00266 219
80.0 0.00304 250
90.0 0.00342 282
100 0.00380 313
200 0.00760 626
300 0.0114 938
400 0.0152 1250
500 0.0190 1560
600 0.0228 1880
700 0.0266 2190
800 0.0304 2500
900 0.0342 2820
1000 0.0380 3130
2000 0.0760 6260
3000 0.114 9380
4000 0.152 1.25 × 104
5000 0.190 1.56 × 104
6000 0.228 1.88 × 104
7000 0.266 2.19 × 104
8000 0.304 2.50 × 104
9000 0.342 2.82 × 104
1.00 × 104 0.380 3.13 × 104
2.00 × 104 0.760 6.26 × 104
3.00 × 104 1.14 9.38 × 104
4.00 × 104 1.52 1.25 × 105
5.00 × 104 1.90 1.56 × 105
6.00 × 104 2.28 1.88 × 105
7.00 × 104 2.66 2.19 × 105
8.00 × 104 3.04 2.50 × 105
9.00 × 104 3.42 2.82 × 105
9.50 × 104 3.61 2.97 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 0.00721 334
70.0 0.00841 389
80.0 0.00961 445
90.0 0.0108 500
100 0.0120 556
200 0.0240 1110
300 0.0360 1670
400 0.0480 2220
500 0.0601 2780
600 0.0721 3340
700 0.0841 3890
800 0.0961 4450
900 0.108 5000
1000 0.120 5560
2000 0.240 1.11 × 104
3000 0.360 1.67 × 104
4000 0.480 2.22 × 104
5000 0.601 2.78 × 104
6000 0.721 3.34 × 104
7000 0.841 3.89 × 104
8000 0.961 4.45 × 104
9000 1.08 5.00 × 104
1.00 × 104 1.20 5.56 × 104
2.00 × 104 2.40 1.11 × 105
3.00 × 104 3.60 1.67 × 105
4.00 × 104 4.80 2.22 × 105
5.00 × 104 6.01 2.78 × 105
5.34 × 104 6.42 2.97 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 0.0176 521
70.0 0.0205 608
80.0 0.0235 695
90.0 0.0264 782
100 0.0293 869
200 0.0587 1740
300 0.0880 2610
400 0.117 3480
500 0.147 4340
600 0.176 5210
700 0.205 6080
800 0.235 6950
900 0.264 7820
1000 0.293 8690
2000 0.587 1.74 × 104
3000 0.880 2.61 × 104
4000 1.17 3.48 × 104
5000 1.47 4.34 × 104
6000 1.76 5.21 × 104
7000 2.05 6.08 × 104
8000 2.35 6.95 × 104
9000 2.64 7.82 × 104
1.00 × 104 2.93 8.69 × 104
2.00 × 104 5.87 1.74 × 105
3.00 × 104 8.80 2.61 × 105
3.42 × 104 10.0 2.97 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 0.0365 751
70.0 0.0426 876
80.0 0.0486 1000
90.0 0.0547 1130
100 0.0608 1250
200 0.122 2500
300 0.182 3750
400 0.243 5000
500 0.304 6260
600 0.365 7510
700 0.426 8760
800 0.486 1.00 × 104
900 0.547 1.13 × 104
1000 0.608 1.25 × 104
2000 1.22 2.50 × 104
3000 1.82 3.75 × 104
4000 2.43 5.00 × 104
5000 3.04 6.26 × 104
6000 3.65 7.51 × 104
7000 4.26 8.76 × 104
8000 4.86 1.00 × 105
9000 5.47 1.13 × 105
1.00 × 104 6.08 1.25 × 105
2.00 × 104 12.2 2.50 × 105
2.37 × 104 14.4 2.97 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 0.115 1330
70.0 0.135 1560
80.0 0.154 1780
90.0 0.173 2000
100 0.192 2220
200 0.384 4450
300 0.577 6670
400 0.769 8900
500 0.961 1.11 × 104
600 1.15 1.33 × 104
700 1.35 1.56 × 104
800 1.54 1.78 × 104
900 1.73 2.00 × 104
1000 1.92 2.22 × 104
2000 3.84 4.45 × 104
3000 5.77 6.67 × 104
4000 7.69 8.90 × 104
5000 9.61 1.11 × 105
6000 11.5 1.33 × 105
7000 13.5 1.56 × 105
8000 15.4 1.78 × 105
9000 17.3 2.00 × 105
9490 18.2 2.11 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 0.282 2090
70.0 0.328 2430
80.0 0.375 2780
90.0 0.422 3130
100 0.469 3480
200 0.938 6950
300 1.41 1.04 × 104
400 1.88 1.39 × 104
500 2.35 1.74 × 104
600 2.82 2.09 × 104
700 3.28 2.43 × 104
800 3.75 2.78 × 104
900 4.22 3.13 × 104
1000 4.69 3.48 × 104
2000 9.38 6.95 × 104
3000 14.1 1.04 × 105
3890 18.2 1.35 × 105
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 0.584 3000
70.0 0.681 3500
80.0 0.778 4000
90.0 0.876 4500
100 0.973 5000
200 1.95 1.00 × 104
300 2.92 1.50 × 104
400 3.89 2.00 × 104
500 4.86 2.50 × 104
600 5.84 3.00 × 104
700 6.81 3.50 × 104
800 7.78 4.00 × 104
900 8.76 4.50 × 104
1000 9.73 5.00 × 104
1870 18.2 9.38 × 104
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 1.08 4090
70.0 1.26 4770
80.0 1.44 5450
90.0 1.62 6130
100 1.80 6810
200 3.61 1.36 × 104
300 5.41 2.04 × 104
400 7.21 2.72 × 104
500 9.01 3.41 × 104
600 10.8 4.09 × 104
700 12.6 4.77 × 104
800 14.4 5.45 × 104
900 16.2 6.13 × 104
1000 18.0 6.81 × 104
1010 18.2 6.89 × 104
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 1.85 5340
70.0 2.15 6230
80.0 2.46 7120
90.0 2.77 8010
100 3.08 8900
200 6.15 1.78 × 104
300 9.23 2.67 × 104
400 12.3 3.56 × 104
500 15.4 4.45 × 104
593 18.2 5.28 × 104
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 2.96 6760
70.0 3.45 7880
80.0 3.94 9010
90.0 4.43 1.01 × 104
100 4.93 1.13 × 104
200 9.85 2.25 × 104
300 14.8 3.38 × 104
370 18.2 4.17 × 104
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 4.50 8340
70.0 5.26 9730
80.0 6.01 1.11 × 104
90.0 6.76 1.25 × 104
100 7.51 1.39 × 104
200 15.0 2.78 × 104
243 18.2 3.38 × 104
Steel I Beam: W18 × 60 (Wide Flange 18 inch tall × 60 lbf/ft)
L = 125 ft
P (lbf/ft) w_max (in) stress_max (psi)
60.0 11.0 1.30 × 104
70.0 12.8 1.52 × 104
80.0 14.7 1.74 × 104
90.0 16.5 1.96 × 104
99.5 18.2 2.16 × 104
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