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Wide Flange Steel I Beam: W6 × 25
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Wide Flange Steel I Beam » W6 × 25
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 = 53.4 in4) for the W6 × 25 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
   
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 2.80 × 10-5 20.2
30.0 3.36 × 10-5 24.2
40.0 4.48 × 10-5 32.3
50.0 5.60 × 10-5 40.3
60.0 6.72 × 10-5 48.4
70.0 7.84 × 10-5 56.5
80.0 8.96 × 10-5 64.5
90.0 1.01 × 10-4 72.6
100 1.12 × 10-4 80.6
200 2.24 × 10-4 161
300 3.36 × 10-4 242
400 4.48 × 10-4 323
500 5.60 × 10-4 403
600 6.72 × 10-4 484
700 7.84 × 10-4 565
800 8.96 × 10-4 645
900 0.00101 726
1000 0.00112 806
2000 0.00224 1610
3000 0.00336 2420
4000 0.00448 3230
5000 0.00560 4030
6000 0.00672 4840
7000 0.00784 5650
8000 0.00896 6450
9000 0.0101 7260
1.00 × 104 0.0112 8060
2.00 × 104 0.0224 1.61 × 104
3.00 × 104 0.0336 2.42 × 104
4.00 × 104 0.0448 3.23 × 104
5.00 × 104 0.0560 4.03 × 104
6.00 × 104 0.0672 4.84 × 104
7.00 × 104 0.0784 5.65 × 104
8.00 × 104 0.0896 6.45 × 104
9.00 × 104 0.101 7.26 × 104
1.00 × 105 0.112 8.06 × 104
2.00 × 105 0.224 1.61 × 105
3.00 × 105 0.336 2.42 × 105
3.68 × 105 0.413 2.97 × 105
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 2.16 × 10-4 56.0
30.0 2.59 × 10-4 67.2
40.0 3.46 × 10-4 89.6
50.0 4.32 × 10-4 112
60.0 5.19 × 10-4 134
70.0 6.05 × 10-4 157
80.0 6.92 × 10-4 179
90.0 7.78 × 10-4 202
100 8.65 × 10-4 224
200 0.00173 448
300 0.00259 672
400 0.00346 896
500 0.00432 1120
600 0.00519 1340
700 0.00605 1570
800 0.00692 1790
900 0.00778 2020
1000 0.00865 2240
2000 0.0173 4480
3000 0.0259 6720
4000 0.0346 8960
5000 0.0432 1.12 × 104
6000 0.0519 1.34 × 104
7000 0.0605 1.57 × 104
8000 0.0692 1.79 × 104
9000 0.0778 2.02 × 104
1.00 × 104 0.0865 2.24 × 104
2.00 × 104 0.173 4.48 × 104
3.00 × 104 0.259 6.72 × 104
4.00 × 104 0.346 8.96 × 104
5.00 × 104 0.432 1.12 × 105
6.00 × 104 0.519 1.34 × 105
7.00 × 104 0.605 1.57 × 105
8.00 × 104 0.692 1.79 × 105
9.00 × 104 0.778 2.02 × 105
1.00 × 105 0.865 2.24 × 105
1.33 × 105 1.15 2.97 × 105
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 0.00346 224
30.0 0.00415 269
40.0 0.00553 358
50.0 0.00692 448
60.0 0.00830 538
70.0 0.00968 627
80.0 0.0111 717
90.0 0.0125 806
100 0.0138 896
200 0.0277 1790
300 0.0415 2690
400 0.0553 3580
500 0.0692 4480
600 0.0830 5380
700 0.0968 6270
800 0.111 7170
900 0.125 8060
1000 0.138 8960
2000 0.277 1.79 × 104
3000 0.415 2.69 × 104
4000 0.553 3.58 × 104
5000 0.692 4.48 × 104
6000 0.830 5.38 × 104
7000 0.968 6.27 × 104
8000 1.11 7.17 × 104
9000 1.25 8.06 × 104
1.00 × 104 1.38 8.96 × 104
2.00 × 104 2.77 1.79 × 105
3.00 × 104 4.15 2.69 × 105
3.31 × 104 4.59 2.97 × 105
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 0.0175 504
30.0 0.0210 605
40.0 0.0280 806
50.0 0.0350 1010
60.0 0.0420 1210
70.0 0.0490 1410
80.0 0.0560 1610
90.0 0.0630 1810
100 0.0700 2020
200 0.140 4030
300 0.210 6050
400 0.280 8060
500 0.350 1.01 × 104
600 0.420 1.21 × 104
700 0.490 1.41 × 104
800 0.560 1.61 × 104
900 0.630 1.81 × 104
1000 0.700 2.02 × 104
2000 1.40 4.03 × 104
3000 2.10 6.05 × 104
4000 2.80 8.06 × 104
5000 3.50 1.01 × 105
6000 4.20 1.21 × 105
7000 4.90 1.41 × 105
8000 5.60 1.61 × 105
9000 6.30 1.81 × 105
9110 6.38 1.84 × 105
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 0.0553 896
30.0 0.0664 1080
40.0 0.0885 1430
50.0 0.111 1790
60.0 0.133 2150
70.0 0.155 2510
80.0 0.177 2870
90.0 0.199 3230
100 0.221 3580
200 0.443 7170
300 0.664 1.08 × 104
400 0.885 1.43 × 104
500 1.11 1.79 × 104
600 1.33 2.15 × 104
700 1.55 2.51 × 104
800 1.77 2.87 × 104
900 1.99 3.23 × 104
1000 2.21 3.58 × 104
2000 4.43 7.17 × 104
2880 6.38 1.03 × 105
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 0.135 1400
30.0 0.162 1680
40.0 0.216 2240
50.0 0.270 2800
60.0 0.324 3360
70.0 0.378 3920
80.0 0.432 4480
90.0 0.486 5040
100 0.540 5600
200 1.08 1.12 × 104
300 1.62 1.68 × 104
400 2.16 2.24 × 104
500 2.70 2.80 × 104
600 3.24 3.36 × 104
700 3.78 3.92 × 104
800 4.32 4.48 × 104
900 4.86 5.04 × 104
1000 5.40 5.60 × 104
1180 6.38 6.61 × 104
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 0.280 2020
30.0 0.336 2420
40.0 0.448 3230
50.0 0.560 4030
60.0 0.672 4840
70.0 0.784 5650
80.0 0.896 6450
90.0 1.01 7260
100 1.12 8060
200 2.24 1.61 × 104
300 3.36 2.42 × 104
400 4.48 3.23 × 104
500 5.60 4.03 × 104
569 6.38 4.59 × 104
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 0.885 3580
30.0 1.06 4300
40.0 1.42 5730
50.0 1.77 7170
60.0 2.12 8600
70.0 2.48 1.00 × 104
80.0 2.83 1.15 × 104
90.0 3.19 1.29 × 104
100 3.54 1.43 × 104
180 6.38 2.58 × 104
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 2.16 5600
30.0 2.59 6720
40.0 3.46 8960
50.0 4.32 1.12 × 104
60.0 5.19 1.34 × 104
70.0 6.05 1.57 × 104
73.8 6.38 1.65 × 104
Steel I Beam: W6 × 25 (Wide Flange 6 inch tall × 25 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
25.0 4.48 8060
30.0 5.38 9680
35.6 6.38 1.15 × 104
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