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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four 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 four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress stress_max occuring at the second and fourth 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 5.23 × 10-6 10.8
30.0 6.03 × 10-6 12.4
40.0 8.04 × 10-6 16.6
50.0 1.01 × 10-5 20.7
60.0 1.21 × 10-5 24.9
70.0 1.41 × 10-5 29.0
80.0 1.61 × 10-5 33.2
90.0 1.81 × 10-5 37.3
100 2.01 × 10-5 41.5
200 4.02 × 10-5 83.0
300 6.03 × 10-5 124
400 8.04 × 10-5 166
500 1.01 × 10-4 207
600 1.21 × 10-4 249
700 1.41 × 10-4 290
800 1.61 × 10-4 332
900 1.81 × 10-4 373
1000 2.01 × 10-4 415
2000 4.02 × 10-4 830
3000 6.03 × 10-4 1240
4000 8.04 × 10-4 1660
5000 0.00101 2070
6000 0.00121 2490
7000 0.00141 2900
8000 0.00161 3320
9000 0.00181 3730
1.00 × 104 0.00201 4150
2.00 × 104 0.00402 8300
3.00 × 104 0.00603 1.24 × 104
4.00 × 104 0.00804 1.66 × 104
5.00 × 104 0.0101 2.07 × 104
6.00 × 104 0.0121 2.49 × 104
7.00 × 104 0.0141 2.90 × 104
8.00 × 104 0.0161 3.32 × 104
9.00 × 104 0.0181 3.73 × 104
1.00 × 105 0.0201 4.15 × 104
2.00 × 105 0.0402 8.30 × 104
3.00 × 105 0.0603 1.24 × 105
4.00 × 105 0.0804 1.66 × 105
5.00 × 105 0.101 2.07 × 105
6.00 × 105 0.121 2.49 × 105
7.00 × 105 0.141 2.90 × 105
7.16 × 105 0.144 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 4.03 × 10-5 30.0
30.0 4.65 × 10-5 34.6
40.0 6.21 × 10-5 46.1
50.0 7.76 × 10-5 57.6
60.0 9.31 × 10-5 69.1
70.0 1.09 × 10-4 80.7
80.0 1.24 × 10-4 92.2
90.0 1.40 × 10-4 104
100 1.55 × 10-4 115
200 3.10 × 10-4 230
300 4.65 × 10-4 346
400 6.21 × 10-4 461
500 7.76 × 10-4 576
600 9.31 × 10-4 691
700 0.00109 807
800 0.00124 922
900 0.00140 1040
1000 0.00155 1150
2000 0.00310 2300
3000 0.00465 3460
4000 0.00621 4610
5000 0.00776 5760
6000 0.00931 6910
7000 0.0109 8070
8000 0.0124 9220
9000 0.0140 1.04 × 104
1.00 × 104 0.0155 1.15 × 104
2.00 × 104 0.0310 2.30 × 104
3.00 × 104 0.0465 3.46 × 104
4.00 × 104 0.0621 4.61 × 104
5.00 × 104 0.0776 5.76 × 104
6.00 × 104 0.0931 6.91 × 104
7.00 × 104 0.109 8.07 × 104
8.00 × 104 0.124 9.22 × 104
9.00 × 104 0.140 1.04 × 105
1.00 × 105 0.155 1.15 × 105
2.00 × 105 0.310 2.30 × 105
2.58 × 105 0.400 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 6.45 × 10-4 120
30.0 7.45 × 10-4 138
40.0 9.93 × 10-4 184
50.0 0.00124 230
60.0 0.00149 277
70.0 0.00174 323
80.0 0.00199 369
90.0 0.00223 415
100 0.00248 461
200 0.00496 922
300 0.00745 1380
400 0.00993 1840
500 0.0124 2300
600 0.0149 2770
700 0.0174 3230
800 0.0199 3690
900 0.0223 4150
1000 0.0248 4610
2000 0.0496 9220
3000 0.0745 1.38 × 104
4000 0.0993 1.84 × 104
5000 0.124 2.30 × 104
6000 0.149 2.77 × 104
7000 0.174 3.23 × 104
8000 0.199 3.69 × 104
9000 0.223 4.15 × 104
1.00 × 104 0.248 4.61 × 104
2.00 × 104 0.496 9.22 × 104
3.00 × 104 0.745 1.38 × 105
4.00 × 104 0.993 1.84 × 105
5.00 × 104 1.24 2.30 × 105
6.00 × 104 1.49 2.77 × 105
6.44 × 104 1.60 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 0.00327 270
30.0 0.00377 311
40.0 0.00503 415
50.0 0.00628 519
60.0 0.00754 622
70.0 0.00880 726
80.0 0.0101 830
90.0 0.0113 933
100 0.0126 1040
200 0.0251 2070
300 0.0377 3110
400 0.0503 4150
500 0.0628 5190
600 0.0754 6220
700 0.0880 7260
800 0.101 8300
900 0.113 9330
1000 0.126 1.04 × 104
2000 0.251 2.07 × 104
3000 0.377 3.11 × 104
4000 0.503 4.15 × 104
5000 0.628 5.19 × 104
6000 0.754 6.22 × 104
7000 0.880 7.26 × 104
8000 1.01 8.30 × 104
9000 1.13 9.33 × 104
1.00 × 104 1.26 1.04 × 105
2.00 × 104 2.51 2.07 × 105
2.86 × 104 3.60 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 0.0103 479
30.0 0.0119 553
40.0 0.0159 738
50.0 0.0199 922
60.0 0.0238 1110
70.0 0.0278 1290
80.0 0.0318 1480
90.0 0.0357 1660
100 0.0397 1840
200 0.0794 3690
300 0.119 5530
400 0.159 7380
500 0.199 9220
600 0.238 1.11 × 104
700 0.278 1.29 × 104
800 0.318 1.48 × 104
900 0.357 1.66 × 104
1000 0.397 1.84 × 104
2000 0.794 3.69 × 104
3000 1.19 5.53 × 104
4000 1.59 7.38 × 104
5000 1.99 9.22 × 104
6000 2.38 1.11 × 105
7000 2.78 1.29 × 105
8000 3.18 1.48 × 105
9000 3.57 1.66 × 105
1.00 × 104 3.97 1.84 × 105
1.61 × 104 6.40 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 0.0252 749
30.0 0.0291 864
40.0 0.0388 1150
50.0 0.0485 1440
60.0 0.0582 1730
70.0 0.0679 2020
80.0 0.0776 2300
90.0 0.0873 2590
100 0.0970 2880
200 0.194 5760
300 0.291 8640
400 0.388 1.15 × 104
500 0.485 1.44 × 104
600 0.582 1.73 × 104
700 0.679 2.02 × 104
800 0.776 2.30 × 104
900 0.873 2.59 × 104
1000 0.970 2.88 × 104
2000 1.94 5.76 × 104
3000 2.91 8.64 × 104
4000 3.88 1.15 × 105
5000 4.85 1.44 × 105
6000 5.82 1.73 × 105
7000 6.79 2.02 × 105
8000 7.76 2.30 × 105
9000 8.73 2.59 × 105
1.00 × 104 9.70 2.88 × 105
1.03 × 104 10.0 2.97 × 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 0.0523 1080
30.0 0.0603 1240
40.0 0.0804 1660
50.0 0.101 2070
60.0 0.121 2490
70.0 0.141 2900
80.0 0.161 3320
90.0 0.181 3730
100 0.201 4150
200 0.402 8300
300 0.603 1.24 × 104
400 0.804 1.66 × 104
500 1.01 2.07 × 104
600 1.21 2.49 × 104
700 1.41 2.90 × 104
800 1.61 3.32 × 104
900 1.81 3.73 × 104
1000 2.01 4.15 × 104
2000 4.02 8.30 × 104
3000 6.03 1.24 × 105
4000 8.04 1.66 × 105
5000 10.1 2.07 × 105
5140 10.3 2.13 × 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 0.165 1920
30.0 0.191 2210
40.0 0.254 2950
50.0 0.318 3690
60.0 0.381 4430
70.0 0.445 5160
80.0 0.508 5900
90.0 0.572 6640
100 0.635 7380
200 1.27 1.48 × 104
300 1.91 2.21 × 104
400 2.54 2.95 × 104
500 3.18 3.69 × 104
600 3.81 4.43 × 104
700 4.45 5.16 × 104
800 5.08 5.90 × 104
900 5.72 6.64 × 104
1000 6.35 7.38 × 104
1630 10.3 1.20 × 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 0.403 3000
30.0 0.465 3460
40.0 0.621 4610
50.0 0.776 5760
60.0 0.931 6910
70.0 1.09 8070
80.0 1.24 9220
90.0 1.40 1.04 × 104
100 1.55 1.15 × 104
200 3.10 2.30 × 104
300 4.65 3.46 × 104
400 6.21 4.61 × 104
500 7.76 5.76 × 104
600 9.31 6.91 × 104
666 10.3 7.67 × 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 0.836 4310
30.0 0.965 4980
40.0 1.29 6640
50.0 1.61 8300
60.0 1.93 9960
70.0 2.25 1.16 × 104
80.0 2.57 1.33 × 104
90.0 2.90 1.49 × 104
100 3.22 1.66 × 104
200 6.43 3.32 × 104
300 9.65 4.98 × 104
321 10.3 5.33 × 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 1.55 5870
30.0 1.79 6780
40.0 2.38 9040
50.0 2.98 1.13 × 104
60.0 3.58 1.36 × 104
70.0 4.17 1.58 × 104
80.0 4.77 1.81 × 104
90.0 5.36 2.03 × 104
100 5.96 2.26 × 104
173 10.3 3.92 × 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 2.64 7670
30.0 3.05 8850
40.0 4.07 1.18 × 104
50.0 5.08 1.48 × 104
60.0 6.10 1.77 × 104
70.0 7.12 2.07 × 104
80.0 8.13 2.36 × 104
90.0 9.15 2.66 × 104
100 10.2 2.95 × 104
102 10.3 3.00 × 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 4.23 9710
30.0 4.89 1.12 × 104
40.0 6.51 1.49 × 104
50.0 8.14 1.87 × 104
60.0 9.77 2.24 × 104
63.4 10.3 2.37 × 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 6.45 1.20 × 104
30.0 7.45 1.38 × 104
40.0 9.93 1.84 × 104
41.6 10.3 1.92 × 104
Additional Information
Related Pages
3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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Guide for high quality and cost-effective plastic injection molding.