Extension Ladders

Extension Ladders are manufactured from either two or three adjustable sliding sections, allowing a compact ladder to extend to a much higher height. Extension ladders usually have two sections that allow for the ladder to be used at adjustable lengths. Extension ladders are not self-supporting and require a stable structure that can withstand the intended load.

Unlike a stepladder that requires level support for all four of its side rails, Extension Ladders require only two, level ground support points in addition to the top support.

At Dreymar Industrial, we offer both Fibreglass and Aluminium Extension Ladders:

  • Aluminium: Light Duty, Affordable, 115kg SWL (4.8m – 9.0m maximum reach height)
  • Fibreglass: Heavy Duty, Non-Conductive, 135kg SWL (5.1m – 13.9m maximum reach height)

Selecting the correct size Extension Ladder requires you to know the height of the topmost support point.

In the event the top support point is a roof eave, the top of the Extension Ladder must extend 300mm to 900mm past this point if the climber intends to access the roof. The ladder should also be tied to the upper access level before climbing onto or off the ladder. The user must take care when getting on or off the ladder at the upper level to avoid tipping the ladder over sideways or causing the ladder base to slide out.

The telescopic/sliding sections of an Extension Ladder, also known as Fly Sections, are held into their adjusted position by extension locking devices known as Rung Locks. Extension Ladders may be fitted with a rope and pulley system to aid the user when extending the Fly Sections.

How do I use an Extension Ladder Safely?

  • Ensure the bottom section "faces" a wall or other supporting surface.
  • Maintain the minimum overlap of sections as shown on a ladder label.
  • Ensure ladders are placed on a firm, level surface and ensure the footing is secure.
  • Set up barricades and warning signs when using a ladder in a doorway or passageway.
  • Leave all tie-off devices in place until they must be removed before taking the ladder down.
  • Raise and lower ladders from the ground. Ensure that the ladder locking hooks are secure before climbing.
  • Brace or tie off the ladder near the base. If there is no structure to tie off to, use a stake in the ground.
  • For access to an elevated work surface, erect ladders so that a minimum of 1 m extends above a landing platform. Tie the top at support points.
  • Use care when getting on and or off the ladder at the top or bottom to avoid tipping the ladder over sideways or causing the ladder base to slide.
  • Place the ladder feet so that the horizontal distance between the feet and the top support is 1/4 of the working length of the ladder. The ladder will be leaning at a 75-degree angle from the ground.

Note: When working at heights, a fall protection program may be necessary. Wear a safety belt or harness with the lanyard tied appropriately to a supporting structure. Ensure that you follow working at heights training that includes how to use fall protection devices safely.

What should I avoid when using an Extension Ladder?

  • Do not leave ladders unattended.
  • Do not set up or take a ladder down when it is extended.
  • Do not overextend. Maintain minimum overlap of sections.
  • Do not climb higher than the fourth rung from the top of a ladder.
  • Do not extend top section of a ladder from above or by "bouncing" on a ladder.
  • Do not use ladders unless they have been inspected by a trained or competent person.
  • Do not use ladders on ice, snow or other slippery surfaces without securing ladders' feet.
  • Do not use ladders near power lines. Keep ladders and other tools at least 10 feet away from power lines.

How do I setup an Extension Ladder?

1)       Lay a ladder on the ground close to intended location.

2)       Brace ladder base using helpers' feet.

3)       Grasp the top rung with both hands, raise the top end over your head and walk toward the base of a ladder. Grasp the centre of the rungs to maintain stability.

4)       Move the erect ladder to the desired location. Lean it forward against the resting point.