How High Is Too High? What You Need to Know About Portable Ladders

Portable ladders cause more workplace injuries in Australia than almost any other piece of access equipment. Most of those injuries happen because someone climbed too high, on the wrong ladder, without a plan.

That is the part worth paying attention to.

A portable ladder looks simple. You lean it against a wall, climb up, do the job, and climb back down. That simplicity is exactly where things go wrong. Workers use ladders for tasks they were not designed for, and nobody stopped to ask whether a ladder was even the right tool before the first foot left the ground.

If your team uses portable ladders for work at any height, this affects you directly. Australian law requires that any time a person could fall from more than 2 metres, that risk must be actively managed. That means thinking through the hazards before the job starts, not while someone is already holding on. The problem is that most people do not think of a portable ladder as a fall hazard until it is too late.

Here is the part that surprises many people. A portable ladder has a maximum safe working height. Under Safe Work Australia guidelines and Australian Standard AS 1892, portable ladders are generally not appropriate for tasks above 4.5 metres. Above that height, the risk of a serious fall becomes too great to manage from a ladder alone. Your workers reach further out, the ladder flexes, and the consequences of getting it wrong get much more serious.

And behind all of this sits a principle worth being clear about. Every worker who climbs a ladder on your site deserves to come back down safely. That is not a compliance checkbox. That is a basic obligation.

At Anchored Height Safety, we see this regularly. A ladder bracket gets fixed to a building at 5 or 6 metres above the ground, and someone is expected to climb a portable ladder to reach it. The fall risk alone is serious enough. But the hazards start before anyone even leaves the ground.

Manoeuvring a large portable ladder into position is a manual handling task in its own right. The bigger the ladder, the heavier it is, and the harder it is to control. Add wind into the mix and you have a ladder that can catch like a sail, throwing the person carrying it off balance before they have climbed a single rung. We understand the pressure to just get the job done. We also understand what happens when that pressure skips past the hazards that were there all along.

Getting it right starts with risk management, and it is simpler than it sounds.

Before anyone picks up a ladder, we recommend working through what safety professionals call the hierarchy of controls. This is a structured way of asking one question first: can the job be done without climbing at all? If yes, do that. If not, can you use something safer than a portable ladder, like a scaffold or an elevated work platform? A portable ladder should only be used when safer options are not reasonably available.

The next step is a Safe Work Method Statement, or SWMS. This is a written document that sets out the task, the hazards, and the controls you will put in place to manage the risks. For any work at a height of more than 2 metres, a SWMS is required under Australian law for construction work. Think of it as a step-by-step recipe for doing the job safely.

A SWMS for portable ladder work should cover the type of ladder being used, the working height, the ground conditions, who will be footing the base, and what tools will be carried up. Australian Standard AS 1892 governs portable ladders in this country and sets out what a ladder must be capable of and how it must be set up, including the correct angle and the condition checks required before use.

For work that needs to happen regularly above 4.5 metres, we recommend stepping back and looking at the access problem properly before defaulting to a portable ladder. Sometimes the right answer is a fixed access solution: a pull-down ladder, a purpose-built stairway, or a roof hatch that gives tradespeople a safe and repeatable way to reach the same point every time. Sometimes it means looking at the problem from a completely different angle and finding an alternate route altogether, through a walkway or a different part of the building that most people had not considered. There are often more options than people realise, and finding the right one makes the job safer every single time it needs to be done.

When everything is done properly, the job gets finished safely. Your workers go home. The task is documented, and anyone reviewing the paperwork can see that the risk was planned and controlled. There are no gaps that could leave you exposed to a WorkSafe investigation.

When things go wrong, they go wrong fast. Falls from height are among the leading causes of workplace death in Australia, and a fall from 3 metres on an unsecured ladder can be fatal. If there is no SWMS, no documented risk assessment, and no evidence that proper controls were in place, WorkSafe and the courts will ask hard questions. You need to be able to answer them.

If your team uses portable ladders and you want to make sure you are working within the correct height limits and have the right documentation in place, talk to us. Call us on 03 9555 3586, email us at sales@anchored.com.au, or visit anchored.com.au.