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Wide Flange Steel I Beam: W10 × 12
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Wide Flange Steel I Beam » W10 × 12
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 = 53.8 in4) for the W10 × 12 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 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 5.34 × 10-6 14.9
20.0 8.90 × 10-6 24.8
30.0 1.33 × 10-5 37.2
40.0 1.78 × 10-5 49.5
50.0 2.22 × 10-5 61.9
60.0 2.67 × 10-5 74.3
70.0 3.11 × 10-5 86.7
80.0 3.56 × 10-5 99.1
90.0 4.00 × 10-5 111
100 4.45 × 10-5 124
200 8.90 × 10-5 248
300 1.33 × 10-4 372
400 1.78 × 10-4 495
500 2.22 × 10-4 619
600 2.67 × 10-4 743
700 3.11 × 10-4 867
800 3.56 × 10-4 991
900 4.00 × 10-4 1110
1000 4.45 × 10-4 1240
2000 8.90 × 10-4 2480
3000 0.00133 3720
4000 0.00178 4950
5000 0.00222 6190
6000 0.00267 7430
7000 0.00311 8670
8000 0.00356 9910
9000 0.00400 1.11 × 104
1.00 × 104 0.00445 1.24 × 104
2.00 × 104 0.00890 2.48 × 104
3.00 × 104 0.0133 3.72 × 104
4.00 × 104 0.0178 4.95 × 104
5.00 × 104 0.0222 6.19 × 104
6.00 × 104 0.0267 7.43 × 104
7.00 × 104 0.0311 8.67 × 104
8.00 × 104 0.0356 9.91 × 104
9.00 × 104 0.0400 1.11 × 105
1.00 × 105 0.0445 1.24 × 105
2.00 × 105 0.0890 2.48 × 105
2.40 × 105 0.107 2.97 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 4.12 × 10-5 41.3
20.0 6.87 × 10-5 68.8
30.0 1.03 × 10-4 103
40.0 1.37 × 10-4 138
50.0 1.72 × 10-4 172
60.0 2.06 × 10-4 206
70.0 2.40 × 10-4 241
80.0 2.75 × 10-4 275
90.0 3.09 × 10-4 310
100 3.43 × 10-4 344
200 6.87 × 10-4 688
300 0.00103 1030
400 0.00137 1380
500 0.00172 1720
600 0.00206 2060
700 0.00240 2410
800 0.00275 2750
900 0.00309 3100
1000 0.00343 3440
2000 0.00687 6880
3000 0.0103 1.03 × 104
4000 0.0137 1.38 × 104
5000 0.0172 1.72 × 104
6000 0.0206 2.06 × 104
7000 0.0240 2.41 × 104
8000 0.0275 2.75 × 104
9000 0.0309 3.10 × 104
1.00 × 104 0.0343 3.44 × 104
2.00 × 104 0.0687 6.88 × 104
3.00 × 104 0.103 1.03 × 105
4.00 × 104 0.137 1.38 × 105
5.00 × 104 0.172 1.72 × 105
6.00 × 104 0.206 2.06 × 105
7.00 × 104 0.240 2.41 × 105
8.00 × 104 0.275 2.75 × 105
8.64 × 104 0.296 2.97 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 6.59 × 10-4 165
20.0 0.00110 275
30.0 0.00165 413
40.0 0.00220 550
50.0 0.00275 688
60.0 0.00330 826
70.0 0.00384 963
80.0 0.00439 1100
90.0 0.00494 1240
100 0.00549 1380
200 0.0110 2750
300 0.0165 4130
400 0.0220 5500
500 0.0275 6880
600 0.0330 8260
700 0.0384 9630
800 0.0439 1.10 × 104
900 0.0494 1.24 × 104
1000 0.0549 1.38 × 104
2000 0.110 2.75 × 104
3000 0.165 4.13 × 104
4000 0.220 5.50 × 104
5000 0.275 6.88 × 104
6000 0.330 8.26 × 104
7000 0.384 9.63 × 104
8000 0.439 1.10 × 105
9000 0.494 1.24 × 105
1.00 × 104 0.549 1.38 × 105
2.00 × 104 1.10 2.75 × 105
2.16 × 104 1.19 2.97 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.00334 372
20.0 0.00556 619
30.0 0.00834 929
40.0 0.0111 1240
50.0 0.0139 1550
60.0 0.0167 1860
70.0 0.0195 2170
80.0 0.0222 2480
90.0 0.0250 2790
100 0.0278 3100
200 0.0556 6190
300 0.0834 9290
400 0.111 1.24 × 104
500 0.139 1.55 × 104
600 0.167 1.86 × 104
700 0.195 2.17 × 104
800 0.222 2.48 × 104
900 0.250 2.79 × 104
1000 0.278 3.10 × 104
2000 0.556 6.19 × 104
3000 0.834 9.29 × 104
4000 1.11 1.24 × 105
5000 1.39 1.55 × 105
6000 1.67 1.86 × 105
7000 1.95 2.17 × 105
8000 2.22 2.48 × 105
9000 2.50 2.79 × 105
9590 2.67 2.97 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.0105 660
20.0 0.0176 1100
30.0 0.0264 1650
40.0 0.0352 2200
50.0 0.0439 2750
60.0 0.0527 3300
70.0 0.0615 3850
80.0 0.0703 4400
90.0 0.0791 4950
100 0.0879 5500
200 0.176 1.10 × 104
300 0.264 1.65 × 104
400 0.352 2.20 × 104
500 0.439 2.75 × 104
600 0.527 3.30 × 104
700 0.615 3.85 × 104
800 0.703 4.40 × 104
900 0.791 4.95 × 104
1000 0.879 5.50 × 104
2000 1.76 1.10 × 105
3000 2.64 1.65 × 105
4000 3.52 2.20 × 105
5000 4.39 2.75 × 105
5400 4.74 2.97 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.0257 1030
20.0 0.0429 1720
30.0 0.0644 2580
40.0 0.0858 3440
50.0 0.107 4300
60.0 0.129 5160
70.0 0.150 6020
80.0 0.172 6880
90.0 0.193 7740
100 0.215 8600
200 0.429 1.72 × 104
300 0.644 2.58 × 104
400 0.858 3.44 × 104
500 1.07 4.30 × 104
600 1.29 5.16 × 104
700 1.50 6.02 × 104
800 1.72 6.88 × 104
900 1.93 7.74 × 104
1000 2.15 8.60 × 104
2000 4.29 1.72 × 105
3000 6.44 2.58 × 105
3450 7.41 2.97 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.0534 1490
20.0 0.0890 2480
30.0 0.133 3720
40.0 0.178 4950
50.0 0.222 6190
60.0 0.267 7430
70.0 0.311 8670
80.0 0.356 9910
90.0 0.400 1.11 × 104
100 0.445 1.24 × 104
200 0.890 2.48 × 104
300 1.33 3.72 × 104
400 1.78 4.95 × 104
500 2.22 6.19 × 104
600 2.67 7.43 × 104
700 3.11 8.67 × 104
800 3.56 9.91 × 104
900 4.00 1.11 × 105
1000 4.45 1.24 × 105
2000 8.90 2.48 × 105
2400 10.7 2.97 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.169 2640
20.0 0.281 4400
30.0 0.422 6600
40.0 0.562 8810
50.0 0.703 1.10 × 104
60.0 0.844 1.32 × 104
70.0 0.984 1.54 × 104
80.0 1.12 1.76 × 104
90.0 1.27 1.98 × 104
100 1.41 2.20 × 104
200 2.81 4.40 × 104
300 4.22 6.60 × 104
400 5.62 8.81 × 104
500 7.03 1.10 × 105
600 8.44 1.32 × 105
700 9.84 1.54 × 105
702 9.87 1.55 × 105
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.412 4130
20.0 0.687 6880
30.0 1.03 1.03 × 104
40.0 1.37 1.38 × 104
50.0 1.72 1.72 × 104
60.0 2.06 2.06 × 104
70.0 2.40 2.41 × 104
80.0 2.75 2.75 × 104
90.0 3.09 3.10 × 104
100 3.43 3.44 × 104
200 6.87 6.88 × 104
288 9.87 9.89 × 104
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 0.854 5940
20.0 1.42 9910
30.0 2.14 1.49 × 104
40.0 2.85 1.98 × 104
50.0 3.56 2.48 × 104
60.0 4.27 2.97 × 104
70.0 4.98 3.47 × 104
80.0 5.69 3.96 × 104
90.0 6.41 4.46 × 104
100 7.12 4.95 × 104
139 9.87 6.87 × 104
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 1.58 8090
20.0 2.64 1.35 × 104
30.0 3.96 2.02 × 104
40.0 5.27 2.70 × 104
50.0 6.59 3.37 × 104
60.0 7.91 4.05 × 104
70.0 9.23 4.72 × 104
74.8 9.87 5.05 × 104
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 2.70 1.06 × 104
20.0 4.50 1.76 × 104
30.0 6.75 2.64 × 104
40.0 9.00 3.52 × 104
43.9 9.87 3.86 × 104
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 4.32 1.34 × 104
20.0 7.21 2.23 × 104
27.4 9.87 3.05 × 104
Steel I Beam: W10 × 12 (Wide Flange 10 inch tall × 12 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
12.0 6.59 1.65 × 104
18.0 9.87 2.47 × 104
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