Allowable Load At Center Of Steel Angle
and "C" Channel Span Guideline

The following information is provided for informational use only. This site assumes no liability for the accuracy of the information. Courtesy of Central Iron Manufacturing Co.

Type and Size Member b-b
 Allowable Concentrated Load ( lbs )
At Center Of Span ( ft. )
3 4 5 6 7 8
Single Angle 3" x 3" x 1/4"   1290 970 770 645 555 485
Single Angle 4" x 3" x 3/8"   3330 2500 2000 1670 1430 1250
Single Angle 5" x 3" x 3/8"   4900 3660 2930 2440 2100 1830
Single Angle 6" x 4" x 3/8"   7350 5500 4400 3670 3140 2750
Single Channel 4" @ 5.4 #   4220 3170 2540 2060 1510 1160
Single Channel 5" @ 6.7 #   6670 5000 4000 3120 2290 1750
Single Channel 6" @ 8.2 #   9560 7170 5740 4370 3220 2460
Single Channel 7" @ 9.8 #   13300 10000 8000 6050 4450 3420
Single Channel 8" @ 11.5 #   18000 13500 10800 8300 6050 4650
Single Channel 9" @ 13.4 #   23300 17500 14000 10800 8000 6080
Single Channel 10" @ 15.3 #   29800 22400 17900 14100 10300 7900
Double Channel 4" @ 5.4 # 2" 8440 6340 5080 4220 3620 3170
Double Channel 5" @ 6.7 # 2-1/2" 13340 10000 8000 6660 5720 5000
Double Channel 6" @ 8.2 # 2-1/2" 19120 14340 11480 9580 8200 7180
Double Channel 7" @ 9.8 # 3" 26600 20000 16000 13300 11440 10000
Double Channel 8" @ 11.5 # 3" 36000 27000 21600 18000 15440 13500
Double Channel 9" @ 13.4 # 3-1/2"   35000 28000 23300 20000 17500
Double Channel 10" @ 15.3 # 3-1/2"     35800 29800 25600 22400


Allowable Load At Center Of Steel I-Beam Span Guideline

The following information is provided for informational use only. This site assumes no liability for the accuracy of the information. Information gathered from Wallace Cranes

Capacity ( ton ) Span I-Beam Depth
1 8' 6"
1 10' 6"
1 15' 8"
1 20' 8"
1 25' 10"
2 10' 8"
2 15' 10"
2 20' 10"
2 25' 12"
2 30' 15"
2 35' 18"
3 10' 10"
3 15' 10"
3 20' 12"
3 25' 15"
3 30' 18"
3 35' 18"
5 10' 10"
5 15' 12"
5 20' 15"
5 25' 18"
7.5 10' 12"
7.5 15' 15"
7.5 20' 18"