How To Choose

Step 1 - Select a Style


Which kind of ladder is right for the job — step stool, stepladder, extension ladder, or multipurpose? The intended task and the work environment help determine the style of ladder best designed to keep you safe and productive on the job.

Step 2 - Select the Height


How high do you need to reach? The highest permitted standing level on a stepladder is two steps down from the top so a person’s maximum safe reaching height is approximately 4 ft. higher than the height of the ladder. Extension ladders should be 7 to 10 ft. longer than the highest support or contact point, which may be the wall or roof line, and the highest standing level for an extension ladder is four rungs down from the top.

Step 3 - Select a Performance (Duty Rating)


How much weight will be on the ladder while working? Ladders are designed and constructed to safely hold up to a specific amount of weight. The maximum safe load capacity of the ladder is called the Duty Rating. Keller ladders come in five different Duty Ratings identified by their grade and type. A person's fully clothed weight plus the weight of any tools and materials that are carried onto the ladder must be less than the duty rating.

Step 4 - Select the Material


Will the ladder be used near or around electricity? Keller offers ladders made from fiberglass, aluminum, and wood. Each material has characteristics which make it best for certain applications. For example, fiberglass ladders should be used for electrical work.
 


 

How Much Weight Will Be On The Ladder

Simplified, impactful color coded duty rating icons make the consumers’ choice easy. Extension ladders now feature matching color coded end caps to reinforce the duty rating.

         
 Typical Uses:
Painting
Yard Work
Household Chores
 Typical Uses:
Light Commercial
Painting
Cleaning
Light Repair
 Typical Uses:
General Contracting
Building
Maintenance
Drywall
 Typical Uses:
Construction
Building
Roofing
General Contracting
 Typical Uses:
Heavy Duty Industrial
Construction
Utilities
Heavy Duty MRO


 

 

Choose The Right Material



Fiberglass: Electrically non-conductive, great value, strong, preferred ladder material

Aluminum: Strong, lightweight, corrosion resistant

Wood: Economical, electrically non-conductive when clean and dry

 


 

Choosing The Right Extension Ladder

 

Height to
Gutter or
Top Support
Point
Buy
this
size extension
ladder*
9’ max
9’ to 13’
13’ to 17’
17’ to 21’
21’ to 25’
25’ to 28’
28’ to 31’
16’
20’
24’
28’
32’
36’
40’

* Reflects section overlap, ladder angle, and 3’ extension above roof line

Choosing The Right Stepladder

 

Maximum Height You Want to Reach* Buy
this
size
Stepladder
7’
8’
9’
10’
11’
12’
14’
16’
18’
20’
3’
4’
5’
6’
7’
8’
10’
12’
14’
16’
 
* Assumes a 5’6" person with a vertical 12" reach