BX Rung

This is the standard rung for all flange-out steel ladders and all flange-in, NEMA Class 20A, 20B, and 20C, hot-dip galvanized steel ladders 6"- 24" wide. Please contact Legrand®/Cablofil for catalog numbers if this rung is desired for other tray systems.

RUNG TYPE MECHANICAL PROPERTIES
BX
SOLID Minumum thickness = 0.048"
Moment of Inertia: Ix = 0.0188 in4
Section Modulus: Sx = 0.0343 in3
RUNG
SPACING
LOAD
TABLE
SAFE LOAD LIMITS (LBS/FT)
TRAY WIDTH (IN.)
6 9 12 18 24 30 36 42 48
6"
1
3243 2162 1621 1081 811 BH BH BH BH
2
3243 2162 1561 774 381 BH BH BH BH
9"
1
2162 1441 1081 721 540 BH BH BH BH
2
2162 1441 1041 516 254 BH BH BH BH
12"*
1
1621 1081 811 540 405 BH BH BH BH
2
1621 1081 781 387 190 BH BH BH BH
18"
1
1081 721 540 360 270 BH BH BH BH
2
1081 721 520 258 127 BH BH BH BH
1

Safe Load/Cable Load Only: Allowable uniformly-distributed cable load expressed in lbs/linear foot of tray length, based on the load carrying capability of the rung with a safety factor of 1.5. To convert Safe Load/Cable Load Only to reflect a safety factor of 2.0, multiply the safe loads shown by 0.75.

2

Safe Load / Cable Load +200 lbs: Allowable uniformly-distributed cable load expressed in lbs/linear foot of tray length, based on the load carrying capability of the rung with a 200 lb. concentrated static load applied at the center of the rung, without collapse.

3

Will not support a 200 lb. concentrated static load applied at the center of the rung.

[XX] Two digit code in the safe load limit tables indicates recommended rung option for specified width.

* Single rung load capacity: The data shown for 12" rung spacing is equivalent to the load capacity of the single rung.