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Ladder Length Guidelines

Step and Extension Ladder length guidelins.

STEP LADDER HEIGHT SELECTION GUIDE EXTENSION LADDER LENGTH SELECTION GUIDE
STEPLADDER SIZE
 
APPROX. HIGHEST STANDING LEVEL
 
LADDER SIZE
MAXIMUM EXTENDED LENGTH
*WORKING RANGETO TOP SUPPORT
*MAXIMUM ACCESSIBLE ROOF height RANGE
4'   1' 11"   16' 13' 7-1/2' - 12 1/2' 4-1/2 - 9-1/2'
5'   2' 10"   20' 17' 9-1/2 - 16-1/2' 6-1/2 - 13-1/2'
6'   3' 9"   24' 21' 11-1/2 - 20' 8-1/2 - 17'
7'   4' 9"   28' 25' 13-1/2 - 24' 10-1/2 - 21'
8'   5' 8"   32' 29' 15-1/2 - 28' 12-1/2 - 25'
10'   7' 7"   36' 32' 17-1/2 - 31' 14' - 28'
12'   9' 6"   40' 35' 19' - 33-1/2' 16' - 30-1/2'
14'   11' 5"   44' 39' 21' - 37-1/2' 18' - 34-1/2'
16'   13' 4"   48' 43' 23' - 41-1/2' 20' - 38-1/2'
18'   15' 3"   60'
(3 section extension)
48' 23' 46-1/2' 20' - 43-1/2'
20'   17' 2"   *When set up at the proper 75-1/2° angle
               
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