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Wide Flange Steel I Beam: W10 × 68
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W10 × 68
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 = 394 in4) for the W10 × 68 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
   
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 1.03 × 10-5 12.1
70.0 1.06 × 10-5 12.5
80.0 1.21 × 10-5 14.3
90.0 1.37 × 10-5 16.0
100 1.52 × 10-5 17.8
200 3.04 × 10-5 35.6
300 4.56 × 10-5 53.5
400 6.07 × 10-5 71.3
500 7.59 × 10-5 89.1
600 9.11 × 10-5 107
700 1.06 × 10-4 125
800 1.21 × 10-4 143
900 1.37 × 10-4 160
1000 1.52 × 10-4 178
2000 3.04 × 10-4 356
3000 4.56 × 10-4 535
4000 6.07 × 10-4 713
5000 7.59 × 10-4 891
6000 9.11 × 10-4 1070
7000 0.00106 1250
8000 0.00121 1430
9000 0.00137 1600
1.00 × 104 0.00152 1780
2.00 × 104 0.00304 3560
3.00 × 104 0.00456 5350
4.00 × 104 0.00607 7130
5.00 × 104 0.00759 8910
6.00 × 104 0.00911 1.07 × 104
7.00 × 104 0.0106 1.25 × 104
8.00 × 104 0.0121 1.43 × 104
9.00 × 104 0.0137 1.60 × 104
1.00 × 105 0.0152 1.78 × 104
2.00 × 105 0.0304 3.56 × 104
3.00 × 105 0.0456 5.35 × 104
4.00 × 105 0.0607 7.13 × 104
5.00 × 105 0.0759 8.91 × 104
6.00 × 105 0.0911 1.07 × 105
7.00 × 105 0.106 1.25 × 105
8.00 × 105 0.121 1.43 × 105
9.00 × 105 0.137 1.60 × 105
1.00 × 106 0.152 1.78 × 105
1.67 × 106 0.253 2.97 × 105
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 7.97 × 10-5 33.7
70.0 8.20 × 10-5 34.6
80.0 9.37 × 10-5 39.6
90.0 1.05 × 10-4 44.5
100 1.17 × 10-4 49.5
200 2.34 × 10-4 99.0
300 3.52 × 10-4 148
400 4.69 × 10-4 198
500 5.86 × 10-4 247
600 7.03 × 10-4 297
700 8.20 × 10-4 346
800 9.37 × 10-4 396
900 0.00105 445
1000 0.00117 495
2000 0.00234 990
3000 0.00352 1480
4000 0.00469 1980
5000 0.00586 2470
6000 0.00703 2970
7000 0.00820 3460
8000 0.00937 3960
9000 0.0105 4450
1.00 × 104 0.0117 4950
2.00 × 104 0.0234 9900
3.00 × 104 0.0352 1.48 × 104
4.00 × 104 0.0469 1.98 × 104
5.00 × 104 0.0586 2.47 × 104
6.00 × 104 0.0703 2.97 × 104
7.00 × 104 0.0820 3.46 × 104
8.00 × 104 0.0937 3.96 × 104
9.00 × 104 0.105 4.45 × 104
1.00 × 105 0.117 4.95 × 104
2.00 × 105 0.234 9.90 × 104
3.00 × 105 0.352 1.48 × 105
4.00 × 105 0.469 1.98 × 105
5.00 × 105 0.586 2.47 × 105
6.00 × 105 0.703 2.97 × 105
6.00 × 105 0.703 2.97 × 105
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.00127 135
70.0 0.00131 139
80.0 0.00150 158
90.0 0.00169 178
100 0.00187 198
200 0.00375 396
300 0.00562 594
400 0.00750 792
500 0.00937 990
600 0.0112 1190
700 0.0131 1390
800 0.0150 1580
900 0.0169 1780
1000 0.0187 1980
2000 0.0375 3960
3000 0.0562 5940
4000 0.0750 7920
5000 0.0937 9900
6000 0.112 1.19 × 104
7000 0.131 1.39 × 104
8000 0.150 1.58 × 104
9000 0.169 1.78 × 104
1.00 × 104 0.187 1.98 × 104
2.00 × 104 0.375 3.96 × 104
3.00 × 104 0.562 5.94 × 104
4.00 × 104 0.750 7.92 × 104
5.00 × 104 0.937 9.90 × 104
6.00 × 104 1.12 1.19 × 105
7.00 × 104 1.31 1.39 × 105
8.00 × 104 1.50 1.58 × 105
9.00 × 104 1.69 1.78 × 105
1.00 × 105 1.87 1.98 × 105
1.50 × 105 2.81 2.97 × 105
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.00645 303
70.0 0.00664 312
80.0 0.00759 356
90.0 0.00854 401
100 0.00949 445
200 0.0190 891
300 0.0285 1340
400 0.0380 1780
500 0.0475 2230
600 0.0570 2670
700 0.0664 3120
800 0.0759 3560
900 0.0854 4010
1000 0.0949 4450
2000 0.190 8910
3000 0.285 1.34 × 104
4000 0.380 1.78 × 104
5000 0.475 2.23 × 104
6000 0.570 2.67 × 104
7000 0.664 3.12 × 104
8000 0.759 3.56 × 104
9000 0.854 4.01 × 104
1.00 × 104 0.949 4.45 × 104
2.00 × 104 1.90 8.91 × 104
3.00 × 104 2.85 1.34 × 105
4.00 × 104 3.80 1.78 × 105
5.00 × 104 4.75 2.23 × 105
6.00 × 104 5.70 2.67 × 105
6.67 × 104 6.33 2.97 × 105
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.0204 538
70.0 0.0210 554
80.0 0.0240 634
90.0 0.0270 713
100 0.0300 792
200 0.0600 1580
300 0.0900 2380
400 0.120 3170
500 0.150 3960
600 0.180 4750
700 0.210 5540
800 0.240 6340
900 0.270 7130
1000 0.300 7920
2000 0.600 1.58 × 104
3000 0.900 2.38 × 104
4000 1.20 3.17 × 104
5000 1.50 3.96 × 104
6000 1.80 4.75 × 104
7000 2.10 5.54 × 104
8000 2.40 6.34 × 104
9000 2.70 7.13 × 104
1.00 × 104 3.00 7.92 × 104
2.00 × 104 6.00 1.58 × 105
3.00 × 104 9.00 2.38 × 105
3.75 × 104 11.3 2.97 × 105
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.0498 841
70.0 0.0513 866
80.0 0.0586 990
90.0 0.0659 1110
100 0.0732 1240
200 0.146 2470
300 0.220 3710
400 0.293 4950
500 0.366 6190
600 0.439 7420
700 0.513 8660
800 0.586 9900
900 0.659 1.11 × 104
1000 0.732 1.24 × 104
2000 1.46 2.47 × 104
3000 2.20 3.71 × 104
4000 2.93 4.95 × 104
5000 3.66 6.19 × 104
6000 4.39 7.42 × 104
7000 5.13 8.66 × 104
8000 5.86 9.90 × 104
9000 6.59 1.11 × 105
1.00 × 104 7.32 1.24 × 105
1.42 × 104 10.4 1.76 × 105
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.103 1210
70.0 0.106 1250
80.0 0.121 1430
90.0 0.137 1600
100 0.152 1780
200 0.304 3560
300 0.456 5350
400 0.607 7130
500 0.759 8910
600 0.911 1.07 × 104
700 1.06 1.25 × 104
800 1.21 1.43 × 104
900 1.37 1.60 × 104
1000 1.52 1.78 × 104
2000 3.04 3.56 × 104
3000 4.56 5.35 × 104
4000 6.07 7.13 × 104
5000 7.59 8.91 × 104
6000 9.11 1.07 × 105
6850 10.4 1.22 × 105
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.326 2150
70.0 0.336 2220
80.0 0.384 2530
90.0 0.432 2850
100 0.480 3170
200 0.960 6340
300 1.44 9500
400 1.92 1.27 × 104
500 2.40 1.58 × 104
600 2.88 1.90 × 104
700 3.36 2.22 × 104
800 3.84 2.53 × 104
900 4.32 2.85 × 104
1000 4.80 3.17 × 104
2000 9.60 6.34 × 104
2170 10.4 6.86 × 104
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 0.797 3370
70.0 0.820 3460
80.0 0.937 3960
90.0 1.05 4450
100 1.17 4950
200 2.34 9900
300 3.52 1.48 × 104
400 4.69 1.98 × 104
500 5.86 2.47 × 104
600 7.03 2.97 × 104
700 8.20 3.46 × 104
800 9.37 3.96 × 104
887 10.4 4.39 × 104
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 1.65 4850
70.0 1.70 4990
80.0 1.94 5700
90.0 2.19 6410
100 2.43 7130
200 4.86 1.43 × 104
300 7.29 2.14 × 104
400 9.72 2.85 × 104
428 10.4 3.05 × 104
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 3.06 6600
70.0 3.15 6790
80.0 3.60 7760
90.0 4.05 8730
100 4.50 9700
200 9.00 1.94 × 104
231 10.4 2.24 × 104
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 5.22 8620
70.0 5.38 8870
80.0 6.14 1.01 × 104
90.0 6.91 1.14 × 104
100 7.68 1.27 × 104
135 10.4 1.72 × 104
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 8.36 1.09 × 104
70.0 8.61 1.12 × 104
80.0 9.84 1.28 × 104
84.5 10.4 1.36 × 104
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