RW – Interchangeable C-Section Uprights

3x1-5-83" x 1-5/8" C-Section Uprights
14 ga.
13 ga.
No Side Holes

G0145

W/ Side Holes

I0145

No Side Holes

G0135

W/ Side Holes

I0135

36" 17,028  15,676 21,626  20,049
42" 15,197 14,003 19,298 17,891
48" 13,234 12,205 16,736 15,515
54" 11,823 10,910 14,889 13,803
60" 10,650 9,833 13,347 12,374
66" 9,467 8,746 11,806 10,945
72" 8,295 7,667 10,295 9,544
78" 7,289 6,740 9,014 8,357
84" 6,441 5,958 7,941 7,362
90" 5,723 5,296 7,038 6,525
96" 5,113 4,732 6,274 5,816
3x3Open3" x 3" C-Section Uprights
14 ga.
13 ga.
No Side Holes

G0146

W/ Side Holes

I0146

No Side Holes

G0136

W/ Side Holes

I0136

36" 23,323  21,776 32,722 31,759
42" 21,268 19,891 29,470 28,551
48" 19,030 17,829 26,028 25,117
54" 17,339 16,266 23,480 22,684
60" 15,902 14,934 21,347 20,602
66" 14,423 13,561 19,190 18,501
72" 12,927 12,168 17,035  16,405
78" 14,486 10,824 15,020 14,450
84" 10,249 9,668 13,315 12,799
90" 9,186 8,673 11,866 11,398
96" 8,269 7,813 10,628 10,202
3x3Open3" x 3" C-Section Uprights
12 ga.
10 ga.
No Side Holes

G0126

W/ Side Holes

I0126

No Side Holes

G0106

W/ Side Holes

I0106

36" 42,237 39,659 52,184  49,723
42" 37,695 35,452 46,515 44,322
48" 32,938 31,073 40,667 38,749
54" 29,540 27,865 36,374 34,659
60" 26,684 25,196 32,792 31,245
66" 23,830 22,524 29,220 27,842
72" 21,007 19,874 25,685 24,474
78" 18,425 17,450 22,519 21,458
84" 16,263 15,414 19,869 18,932
90" 14,440 13,695 17,636 16,804
96" 12,893 12,235 15,742 15,000

UNARCO designs conform to the latest Rack Manufacturers Institute (RMI) specifications and American Iron & Steel Institute (AISI) Cold Formed Steel Design Manual using “Load and Resistance Factor Design” (LRFD) method. Frame capacities are based on maximum unsupported length which is the measurement of the distance between the floor and the top of the first beam or the maximum spacing between beams — whichever governs. Contact the Springfield Office for the following conditions:

  • Any application where the frame load exceeds 31,000 pounds. These situations may need heavier than standard frame bracing.
  • Any application that requires seismic design where the ground acceleration is greater than 0.05g or if Ss exceeds 25%g in IBC areas.
  • Configurations that require a frame deeper than 60″ or taller than 480″.
  • Applications that involve support of platforms or catwalks or any application other than standard pallet rack.
  • Single bays of rack.
  • Any condition which creates uncertainty as to the proper use of these tables. Table values are column capacities based on gravity loading only.
  • The table values are based on the assumption that the rack bracing is adequate (none of the above conditions apply), and all other aspects of the rack have been properly designed. All values are for undamaged racks.

All values in these tables assume that each column carries half of the frame load and the table values are expressed in pounds per frame. These values are based on gravity loading only that is purely axial. Any condition where the axial load is accompanied by moment, the axial load capacity will be less. This will occur for non-symmetrical loading conditions. The capacities also assume the base plates and the bracing are of adequate strength and that all other parts of the rack have been properly designed. All values are for undamaged racks that are installed plumb. It is the rack user’s responsibility to properly maintain the racks to ensure that the carrying capacity of the racks is not reduced by damage and that changes to the rack configuration do not cause unsafe conditions.