How to Select Your Ladder: The Extension Ladder

Which ladder is right for your job?

You’ll save time and energy and reduce your risk of injury if you know how to select the correct ladder for the job. Key factors to consider are type and style of ladder, ladder length, duty rating, and the material from which the ladder is constructed.

Choose the right type and style

Most portable ladders are either non-self-supporting, such as an extension ladder, or are self-supporting, such as a standard step ladder. But there are also combination ladders that quickly convert from a stepladder to an extension ladder. You’re likely to find the right size, shape, and type of ladder to accomplish your task within one of these categories. This week we take a look at one of the most commonly used ladder for industrial application: the extension ladder.

Extension ladders - non-self-supporting

Extension ladders offer the greatest length in a general-purpose ladder. The ladder consists of two or more sections that travel in guides or brackets, allowing adjustable lengths. The sections must be assembled so that the sliding upper section is on top of the lower section. Each section must overlap its adjacent section a minimum distance, based on the ladder’s overall length. The overall length is determined by the lengths of the individual sections, measured along the side rails. The table below shows the minimum overlap for two-section ladders up to 60 feet long.

LADDER LENGTH	OVERLAP
Up to 36 feet	3 feet
36 to 48 feet	4 feet
48 to 60 feet	5 feet

Most extension ladders are made of wood, aluminum, or reinforced fiberglass. Wood ladders can’t have more than two section and must not exceed 60 feet. Aluminum and fiberglass ladders can have up to 3 sections; however, the overall length must not exceed 72 feet. Individual sections of any ladder must not be longer than 30 feet. Extension ladders can be used only by one person at a time.

Is it necessary to “tie off” an extension ladder to prevent it from slipping?

It is not necessary to tie off the ladder, but you must ensure that the ladder cannot be accidentally moved or displaced. Thoroughly inspect your ladder to be certain all aspects are in top working condition, especially the footings and the rung locks.

We’ll cover other types of ladders in our next post. To learn more about ladders, scaffolding, and a wide array of service industry equipment available for your vehicles and more, check out Creech Ladder. We're your one-stop-shop for accessories that improve safety, stability and usability. You can call us direct at 615.242.8601, or check out our website for special offers and updates at: http://web.vanandtruckequipmenttn.com/home/.

And remember,  if it's out of reach, call the folks at Creech!