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Wide Flange Steel I Beam: W10 × 26
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W10 × 26
Wide Flange Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in three equal spans, we compute the displacement at the middle of the first and the third spans, and the maximum normal stress stress_max occuring at the second and third supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 144 in4) for the W10 × 26 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 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 5.64 × 10-6 10.1
30.0 6.51 × 10-6 11.6
40.0 8.68 × 10-6 15.5
50.0 1.09 × 10-5 19.4
60.0 1.30 × 10-5 23.2
70.0 1.52 × 10-5 27.1
80.0 1.74 × 10-5 31.0
90.0 1.95 × 10-5 34.9
100 2.17 × 10-5 38.7
200 4.34 × 10-5 77.5
300 6.51 × 10-5 116
400 8.68 × 10-5 155
500 1.09 × 10-4 194
600 1.30 × 10-4 232
700 1.52 × 10-4 271
800 1.74 × 10-4 310
900 1.95 × 10-4 349
1000 2.17 × 10-4 387
2000 4.34 × 10-4 775
3000 6.51 × 10-4 1160
4000 8.68 × 10-4 1550
5000 0.00109 1940
6000 0.00130 2320
7000 0.00152 2710
8000 0.00174 3100
9000 0.00195 3490
1.00 × 104 0.00217 3870
2.00 × 104 0.00434 7750
3.00 × 104 0.00651 1.16 × 104
4.00 × 104 0.00868 1.55 × 104
5.00 × 104 0.0109 1.94 × 104
6.00 × 104 0.0130 2.32 × 104
7.00 × 104 0.0152 2.71 × 104
8.00 × 104 0.0174 3.10 × 104
9.00 × 104 0.0195 3.49 × 104
1.00 × 105 0.0217 3.87 × 104
2.00 × 105 0.0434 7.75 × 104
3.00 × 105 0.0651 1.16 × 105
4.00 × 105 0.0868 1.55 × 105
5.00 × 105 0.109 1.94 × 105
6.00 × 105 0.130 2.32 × 105
7.00 × 105 0.152 2.71 × 105
7.67 × 105 0.166 2.97 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 4.35 × 10-5 28.0
30.0 5.02 × 10-5 32.3
40.0 6.70 × 10-5 43.0
50.0 8.37 × 10-5 53.8
60.0 1.00 × 10-4 64.6
70.0 1.17 × 10-4 75.3
80.0 1.34 × 10-4 86.1
90.0 1.51 × 10-4 96.8
100 1.67 × 10-4 108
200 3.35 × 10-4 215
300 5.02 × 10-4 323
400 6.70 × 10-4 430
500 8.37 × 10-4 538
600 0.00100 646
700 0.00117 753
800 0.00134 861
900 0.00151 968
1000 0.00167 1080
2000 0.00335 2150
3000 0.00502 3230
4000 0.00670 4300
5000 0.00837 5380
6000 0.0100 6460
7000 0.0117 7530
8000 0.0134 8610
9000 0.0151 9680
1.00 × 104 0.0167 1.08 × 104
2.00 × 104 0.0335 2.15 × 104
3.00 × 104 0.0502 3.23 × 104
4.00 × 104 0.0670 4.30 × 104
5.00 × 104 0.0837 5.38 × 104
6.00 × 104 0.100 6.46 × 104
7.00 × 104 0.117 7.53 × 104
8.00 × 104 0.134 8.61 × 104
9.00 × 104 0.151 9.68 × 104
1.00 × 105 0.167 1.08 × 105
2.00 × 105 0.335 2.15 × 105
2.76 × 105 0.462 2.97 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 6.97 × 10-4 112
30.0 8.04 × 10-4 129
40.0 0.00107 172
50.0 0.00134 215
60.0 0.00161 258
70.0 0.00188 301
80.0 0.00214 344
90.0 0.00241 387
100 0.00268 430
200 0.00536 861
300 0.00804 1290
400 0.0107 1720
500 0.0134 2150
600 0.0161 2580
700 0.0188 3010
800 0.0214 3440
900 0.0241 3870
1000 0.0268 4300
2000 0.0536 8610
3000 0.0804 1.29 × 104
4000 0.107 1.72 × 104
5000 0.134 2.15 × 104
6000 0.161 2.58 × 104
7000 0.188 3.01 × 104
8000 0.214 3.44 × 104
9000 0.241 3.87 × 104
1.00 × 104 0.268 4.30 × 104
2.00 × 104 0.536 8.61 × 104
3.00 × 104 0.804 1.29 × 105
4.00 × 104 1.07 1.72 × 105
5.00 × 104 1.34 2.15 × 105
6.00 × 104 1.61 2.58 × 105
6.90 × 104 1.85 2.97 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.00353 252
30.0 0.00407 291
40.0 0.00543 387
50.0 0.00678 484
60.0 0.00814 581
70.0 0.00949 678
80.0 0.0109 775
90.0 0.0122 872
100 0.0136 968
200 0.0271 1940
300 0.0407 2910
400 0.0543 3870
500 0.0678 4840
600 0.0814 5810
700 0.0949 6780
800 0.109 7750
900 0.122 8720
1000 0.136 9680
2000 0.271 1.94 × 104
3000 0.407 2.91 × 104
4000 0.543 3.87 × 104
5000 0.678 4.84 × 104
6000 0.814 5.81 × 104
7000 0.949 6.78 × 104
8000 1.09 7.75 × 104
9000 1.22 8.72 × 104
1.00 × 104 1.36 9.68 × 104
2.00 × 104 2.71 1.94 × 105
3.00 × 104 4.07 2.91 × 105
3.07 × 104 4.16 2.97 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0111 448
30.0 0.0129 517
40.0 0.0171 689
50.0 0.0214 861
60.0 0.0257 1030
70.0 0.0300 1210
80.0 0.0343 1380
90.0 0.0386 1550
100 0.0429 1720
200 0.0857 3440
300 0.129 5170
400 0.171 6890
500 0.214 8610
600 0.257 1.03 × 104
700 0.300 1.21 × 104
800 0.343 1.38 × 104
900 0.386 1.55 × 104
1000 0.429 1.72 × 104
2000 0.857 3.44 × 104
3000 1.29 5.17 × 104
4000 1.71 6.89 × 104
5000 2.14 8.61 × 104
6000 2.57 1.03 × 105
7000 3.00 1.21 × 105
8000 3.43 1.38 × 105
9000 3.86 1.55 × 105
1.00 × 104 4.29 1.72 × 105
1.73 × 104 7.40 2.97 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0272 699
30.0 0.0314 807
40.0 0.0419 1080
50.0 0.0523 1350
60.0 0.0628 1610
70.0 0.0733 1880
80.0 0.0837 2150
90.0 0.0942 2420
100 0.105 2690
200 0.209 5380
300 0.314 8070
400 0.419 1.08 × 104
500 0.523 1.35 × 104
600 0.628 1.61 × 104
700 0.733 1.88 × 104
800 0.837 2.15 × 104
900 0.942 2.42 × 104
1000 1.05 2.69 × 104
2000 2.09 5.38 × 104
3000 3.14 8.07 × 104
4000 4.19 1.08 × 105
5000 5.23 1.35 × 105
6000 6.28 1.61 × 105
7000 7.33 1.88 × 105
8000 8.37 2.15 × 105
9000 9.42 2.42 × 105
9870 10.3 2.66 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.0564 1010
30.0 0.0651 1160
40.0 0.0868 1550
50.0 0.109 1940
60.0 0.130 2320
70.0 0.152 2710
80.0 0.174 3100
90.0 0.195 3490
100 0.217 3870
200 0.434 7750
300 0.651 1.16 × 104
400 0.868 1.55 × 104
500 1.09 1.94 × 104
600 1.30 2.32 × 104
700 1.52 2.71 × 104
800 1.74 3.10 × 104
900 1.95 3.49 × 104
1000 2.17 3.87 × 104
2000 4.34 7.75 × 104
3000 6.51 1.16 × 105
4000 8.68 1.55 × 105
4760 10.3 1.84 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.178 1790
30.0 0.206 2070
40.0 0.274 2750
50.0 0.343 3440
60.0 0.412 4130
70.0 0.480 4820
80.0 0.549 5510
90.0 0.617 6200
100 0.686 6890
200 1.37 1.38 × 104
300 2.06 2.07 × 104
400 2.74 2.75 × 104
500 3.43 3.44 × 104
600 4.12 4.13 × 104
700 4.80 4.82 × 104
800 5.49 5.51 × 104
900 6.17 6.20 × 104
1000 6.86 6.89 × 104
1510 10.3 1.04 × 105
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.435 2800
30.0 0.502 3230
40.0 0.670 4300
50.0 0.837 5380
60.0 1.00 6460
70.0 1.17 7530
80.0 1.34 8610
90.0 1.51 9680
100 1.67 1.08 × 104
200 3.35 2.15 × 104
300 5.02 3.23 × 104
400 6.70 4.30 × 104
500 8.37 5.38 × 104
600 10.0 6.46 × 104
617 10.3 6.64 × 104
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 0.903 4030
30.0 1.04 4650
40.0 1.39 6200
50.0 1.74 7750
60.0 2.08 9300
70.0 2.43 1.08 × 104
80.0 2.78 1.24 × 104
90.0 3.12 1.39 × 104
100 3.47 1.55 × 104
200 6.94 3.10 × 104
298 10.3 4.61 × 104
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 1.67 5480
30.0 1.93 6330
40.0 2.57 8440
50.0 3.22 1.05 × 104
60.0 3.86 1.27 × 104
70.0 4.50 1.48 × 104
80.0 5.15 1.69 × 104
90.0 5.79 1.90 × 104
100 6.43 2.11 × 104
161 10.3 3.39 × 104
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 2.85 7160
30.0 3.29 8260
40.0 4.39 1.10 × 104
50.0 5.49 1.38 × 104
60.0 6.58 1.65 × 104
70.0 7.68 1.93 × 104
80.0 8.78 2.20 × 104
90.0 9.88 2.48 × 104
94.1 10.3 2.59 × 104
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 4.57 9060
30.0 5.27 1.05 × 104
40.0 7.03 1.39 × 104
50.0 8.79 1.74 × 104
58.8 10.3 2.05 × 104
Steel I Beam: W10 × 26 (Wide Flange 10 inch tall × 26 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
26.0 6.97 1.12 × 104
30.0 8.04 1.29 × 104
38.6 10.3 1.66 × 104
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