AL Rung

This is the standard rung for all 6" - 18" wide aluminum ladder trays. Also used on ventilated/trough trays with 5" rung spacing.

RUNG TYPE MECHANICAL PROPERTIES
AL
SOLID Minumum thickness = 0.040"
Moment of Inertia: Ix = 0.0067 in4
Section Modulus: Sx = 0.0427 in3
RUNG
SPACING
LOAD
TABLE
SAFE LOAD LIMITS (LBS/FT)
TRAY WIDTH (IN.)
6 9 12 18 24 30 36 42 48
5"
1
3143 2095 1571 1048 AH AH AH AH AH
2
2619 1743 1107 471 AH AH AH AH AH
6"
1
2619 1746 1309 873 AH AH AH AH AH
2
2619 1743 1107 471 AH AH AH AH AH
9"
1
1746 1164 873 582 AH AH AH AH AH
2
1746 1162 738 314 AH AH AH AH AH
12"*
1
1309 873 655 436 AH AH AH AH AH
2
1309 871 553 236 AH AH AH AH AH
18"
1
ST ST ST ST ST ST ST ST ST
2
ST ST ST ST ST ST ST ST ST
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.