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Wide Flange Steel I Beam: W10 × 68
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » 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 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 = 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
L = 100 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 4.13 × 10-6 12.1
70.0 4.25 × 10-6 12.5
80.0 4.86 × 10-6 14.3
90.0 5.47 × 10-6 16.0
100 6.07 × 10-6 17.8
200 1.21 × 10-5 35.6
300 1.82 × 10-5 53.5
400 2.43 × 10-5 71.3
500 3.04 × 10-5 89.1
600 3.64 × 10-5 107
700 4.25 × 10-5 125
800 4.86 × 10-5 143
900 5.47 × 10-5 160
1000 6.07 × 10-5 178
2000 1.21 × 10-4 356
3000 1.82 × 10-4 535
4000 2.43 × 10-4 713
5000 3.04 × 10-4 891
6000 3.64 × 10-4 1070
7000 4.25 × 10-4 1250
8000 4.86 × 10-4 1430
9000 5.47 × 10-4 1600
1.00 × 104 6.07 × 10-4 1780
2.00 × 104 0.00121 3560
3.00 × 104 0.00182 5350
4.00 × 104 0.00243 7130
5.00 × 104 0.00304 8910
6.00 × 104 0.00364 1.07 × 104
7.00 × 104 0.00425 1.25 × 104
8.00 × 104 0.00486 1.43 × 104
9.00 × 104 0.00547 1.60 × 104
1.00 × 105 0.00607 1.78 × 104
2.00 × 105 0.0121 3.56 × 104
3.00 × 105 0.0182 5.35 × 104
4.00 × 105 0.0243 7.13 × 104
5.00 × 105 0.0304 8.91 × 104
6.00 × 105 0.0364 1.07 × 105
7.00 × 105 0.0425 1.25 × 105
8.00 × 105 0.0486 1.43 × 105
9.00 × 105 0.0547 1.60 × 105
1.00 × 106 0.0607 1.78 × 105
1.67 × 106 0.101 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 3.19 × 10-5 33.7
70.0 3.28 × 10-5 34.6
80.0 3.75 × 10-5 39.6
90.0 4.22 × 10-5 44.5
100 4.69 × 10-5 49.5
200 9.37 × 10-5 99.0
300 1.41 × 10-4 148
400 1.87 × 10-4 198
500 2.34 × 10-4 247
600 2.81 × 10-4 297
700 3.28 × 10-4 346
800 3.75 × 10-4 396
900 4.22 × 10-4 445
1000 4.69 × 10-4 495
2000 9.37 × 10-4 990
3000 0.00141 1480
4000 0.00187 1980
5000 0.00234 2470
6000 0.00281 2970
7000 0.00328 3460
8000 0.00375 3960
9000 0.00422 4450
1.00 × 104 0.00469 4950
2.00 × 104 0.00937 9900
3.00 × 104 0.0141 1.48 × 104
4.00 × 104 0.0187 1.98 × 104
5.00 × 104 0.0234 2.47 × 104
6.00 × 104 0.0281 2.97 × 104
7.00 × 104 0.0328 3.46 × 104
8.00 × 104 0.0375 3.96 × 104
9.00 × 104 0.0422 4.45 × 104
1.00 × 105 0.0469 4.95 × 104
2.00 × 105 0.0937 9.90 × 104
3.00 × 105 0.141 1.48 × 105
4.00 × 105 0.187 1.98 × 105
5.00 × 105 0.234 2.47 × 105
6.00 × 105 0.281 2.97 × 105
6.00 × 105 0.281 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 5.10 × 10-4 135
70.0 5.25 × 10-4 139
80.0 6.00 × 10-4 158
90.0 6.75 × 10-4 178
100 7.50 × 10-4 198
200 0.00150 396
300 0.00225 594
400 0.00300 792
500 0.00375 990
600 0.00450 1190
700 0.00525 1390
800 0.00600 1580
900 0.00675 1780
1000 0.00750 1980
2000 0.0150 3960
3000 0.0225 5940
4000 0.0300 7920
5000 0.0375 9900
6000 0.0450 1.19 × 104
7000 0.0525 1.39 × 104
8000 0.0600 1.58 × 104
9000 0.0675 1.78 × 104
1.00 × 104 0.0750 1.98 × 104
2.00 × 104 0.150 3.96 × 104
3.00 × 104 0.225 5.94 × 104
4.00 × 104 0.300 7.92 × 104
5.00 × 104 0.375 9.90 × 104
6.00 × 104 0.450 1.19 × 105
7.00 × 104 0.525 1.39 × 105
8.00 × 104 0.600 1.58 × 105
9.00 × 104 0.675 1.78 × 105
1.00 × 105 0.750 1.98 × 105
1.50 × 105 1.13 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 0.00258 303
70.0 0.00266 312
80.0 0.00304 356
90.0 0.00342 401
100 0.00380 445
200 0.00759 891
300 0.0114 1340
400 0.0152 1780
500 0.0190 2230
600 0.0228 2670
700 0.0266 3120
800 0.0304 3560
900 0.0342 4010
1000 0.0380 4450
2000 0.0759 8910
3000 0.114 1.34 × 104
4000 0.152 1.78 × 104
5000 0.190 2.23 × 104
6000 0.228 2.67 × 104
7000 0.266 3.12 × 104
8000 0.304 3.56 × 104
9000 0.342 4.01 × 104
1.00 × 104 0.380 4.45 × 104
2.00 × 104 0.759 8.91 × 104
3.00 × 104 1.14 1.34 × 105
4.00 × 104 1.52 1.78 × 105
5.00 × 104 1.90 2.23 × 105
6.00 × 104 2.28 2.67 × 105
6.67 × 104 2.53 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 0.00816 538
70.0 0.00840 554
80.0 0.00960 634
90.0 0.0108 713
100 0.0120 792
200 0.0240 1580
300 0.0360 2380
400 0.0480 3170
500 0.0600 3960
600 0.0720 4750
700 0.0840 5540
800 0.0960 6340
900 0.108 7130
1000 0.120 7920
2000 0.240 1.58 × 104
3000 0.360 2.38 × 104
4000 0.480 3.17 × 104
5000 0.600 3.96 × 104
6000 0.720 4.75 × 104
7000 0.840 5.54 × 104
8000 0.960 6.34 × 104
9000 1.08 7.13 × 104
1.00 × 104 1.20 7.92 × 104
2.00 × 104 2.40 1.58 × 105
3.00 × 104 3.60 2.38 × 105
3.75 × 104 4.50 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 0.0199 841
70.0 0.0205 866
80.0 0.0234 990
90.0 0.0264 1110
100 0.0293 1240
200 0.0586 2470
300 0.0879 3710
400 0.117 4950
500 0.146 6190
600 0.176 7420
700 0.205 8660
800 0.234 9900
900 0.264 1.11 × 104
1000 0.293 1.24 × 104
2000 0.586 2.47 × 104
3000 0.879 3.71 × 104
4000 1.17 4.95 × 104
5000 1.46 6.19 × 104
6000 1.76 7.42 × 104
7000 2.05 8.66 × 104
8000 2.34 9.90 × 104
9000 2.64 1.11 × 105
1.00 × 104 2.93 1.24 × 105
2.00 × 104 5.86 2.47 × 105
2.40 × 104 7.03 2.97 × 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 0.0413 1210
70.0 0.0425 1250
80.0 0.0486 1430
90.0 0.0547 1600
100 0.0607 1780
200 0.121 3560
300 0.182 5350
400 0.243 7130
500 0.304 8910
600 0.364 1.07 × 104
700 0.425 1.25 × 104
800 0.486 1.43 × 104
900 0.547 1.60 × 104
1000 0.607 1.78 × 104
2000 1.21 3.56 × 104
3000 1.82 5.35 × 104
4000 2.43 7.13 × 104
5000 3.04 8.91 × 104
6000 3.64 1.07 × 105
7000 4.25 1.25 × 105
8000 4.86 1.43 × 105
9000 5.47 1.60 × 105
1.00 × 104 6.07 1.78 × 105
1.67 × 104 10.1 2.97 × 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 0.131 2150
70.0 0.134 2220
80.0 0.154 2530
90.0 0.173 2850
100 0.192 3170
200 0.384 6340
300 0.576 9500
400 0.768 1.27 × 104
500 0.960 1.58 × 104
600 1.15 1.90 × 104
700 1.34 2.22 × 104
800 1.54 2.53 × 104
900 1.73 2.85 × 104
1000 1.92 3.17 × 104
2000 3.84 6.34 × 104
3000 5.76 9.50 × 104
4000 7.68 1.27 × 105
5000 9.60 1.58 × 105
5420 10.4 1.72 × 105
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 0.319 3370
70.0 0.328 3460
80.0 0.375 3960
90.0 0.422 4450
100 0.469 4950
200 0.937 9900
300 1.41 1.48 × 104
400 1.87 1.98 × 104
500 2.34 2.47 × 104
600 2.81 2.97 × 104
700 3.28 3.46 × 104
800 3.75 3.96 × 104
900 4.22 4.45 × 104
1000 4.69 4.95 × 104
2000 9.37 9.90 × 104
2220 10.4 1.10 × 105
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 0.661 4850
70.0 0.680 4990
80.0 0.778 5700
90.0 0.875 6410
100 0.972 7130
200 1.94 1.43 × 104
300 2.92 2.14 × 104
400 3.89 2.85 × 104
500 4.86 3.56 × 104
600 5.83 4.28 × 104
700 6.80 4.99 × 104
800 7.78 5.70 × 104
900 8.75 6.41 × 104
1000 9.72 7.13 × 104
1070 10.4 7.63 × 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 1.22 6600
70.0 1.26 6790
80.0 1.44 7760
90.0 1.62 8730
100 1.80 9700
200 3.60 1.94 × 104
300 5.40 2.91 × 104
400 7.20 3.88 × 104
500 9.00 4.85 × 104
578 10.4 5.60 × 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 2.09 8620
70.0 2.15 8870
80.0 2.46 1.01 × 104
90.0 2.76 1.14 × 104
100 3.07 1.27 × 104
200 6.14 2.53 × 104
300 9.22 3.80 × 104
339 10.4 4.29 × 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 3.35 1.09 × 104
70.0 3.44 1.12 × 104
80.0 3.94 1.28 × 104
90.0 4.43 1.44 × 104
100 4.92 1.60 × 104
200 9.84 3.21 × 104
211 10.4 3.39 × 104
Steel I Beam: W10 × 68 (Wide Flange 10 inch tall × 68 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
68.0 5.10 1.35 × 104
70.0 5.25 1.39 × 104
80.0 6.00 1.58 × 104
90.0 6.75 1.78 × 104
100 7.50 1.98 × 104
139 10.4 2.75 × 104
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