Ladder Safety at Work: Rules, Checks and Common Mistakes
Ladders are the most common access equipment in Ireland and the most commonly misused. Used correctly, for the right task, they are perfectly safe. Here is how to decide when a ladder is suitable, the checks to make every time, and the mistakes that put people on the ground.
When is a ladder the right choice?
There is a stubborn myth that ladders are banned at work in Ireland. They are not. A ladder can be a sensible, safe option, but only for the right kind of task. Under the avoid–prevent–minimise hierarchy set out in Part 4 of the Safety, Health and Welfare at Work (General Application) Regulations 2007, you should choose a ladder only when the work is low-risk and short-duration, and when a safer alternative is not reasonably practicable.
As a rule of thumb, a ladder suits work that is brief, light, and lets you keep a stable, balanced stance. It is the wrong tool when:
- The task will take a long time at the same position (generally more than about 30 minutes).
- You need to carry heavy or bulky items, or use both hands and lean out.
- You cannot maintain a secure handhold and three points of contact.
- The ground is uneven, soft, slippery or sloping.
If any of those apply, a tower, podium step or MEWP is almost always the safer choice. Our wider working at heights guide explains how to weigh up access equipment.
The pre-use check
A quick visual check before every use catches most ladder defects. It takes under a minute and is a legal expectation under the duty to use suitable, well-maintained equipment.
- Stiles — look for bends, cracks or dents; a damaged stile can fail without warning.
- Rungs — make sure none are missing, loose, bent or worn smooth.
- Feet — check they are present, clean and not worn or split; muddy feet slip.
- Locking bars and stays — on stepladders, confirm they engage fully and are not damaged.
- Contamination — wipe off any oil, grease or mud from rungs and feet before climbing.
If a ladder fails any part of this check, take it out of use, label it, and report it. Never patch up a damaged ladder.
Working at Heights training from €35
Self-paced, HSA-aligned, certificate the same day — €35 per person.
The 1-in-4 angle
For a leaning ladder, the angle is everything. Set it too upright and it can topple backwards; set it too shallow and the feet can slide out. The correct angle is 1 in 4, meaning the base sits one unit out from the wall for every four units of height. That works out to roughly 75 degrees.
An easy on-site check: stand with your toes at the feet of the ladder and your arms straight out in front. If your fingertips reach the rung at shoulder height, the angle is about right. The ladder should also extend at least a metre above the landing point where you step off, so there is something to hold.
A ladder at the wrong angle is not slightly less safe. It is an accident waiting for the moment you reach a little too far.
Three points of contact
The single most important rule when climbing or working is to keep three points of contact with the ladder at all times. That means two feet and one hand, or two hands and one foot. Maintaining three points keeps your centre of gravity within the stiles and stops a small slip becoming a fall.
This is why a ladder is the wrong choice for work that needs both hands or carrying. If you must carry light tools, use a tool belt or a hoist line, never your free hand. Always face the ladder when climbing and descending.
Common mistakes and misuse
Most ladder falls in Ireland come down to a handful of avoidable errors:
- Overreaching — leaning sideways instead of getting down and moving the ladder. Keep your belt buckle within the stiles.
- Unsecured ladders — not tying off or footing a leaning ladder, so it slides or twists.
- Poor footing — placing the ladder on loose, soft or sloping ground, or on a wobbly object to gain height.
- Wrong ladder for the job — using a stepladder side-on, or a damaged ladder because the right one was not to hand.
- Resting against fragile surfaces — leaning on guttering, glazing or plastic that can give way.
Every one of these is a decision, not an accident, which is exactly why training matters.
Key takeaways
- Ladders are not banned — use them only for short, light, low-risk tasks.
- Carry out a 60-second pre-use check of stiles, rungs, feet and locks every time.
- Set leaning ladders at the 1-in-4 angle (about 75 degrees) and tie or foot them.
- Keep three points of contact and never overreach.
- Most ladder falls are caused by predictable, preventable misuse.
Build safe habits
Ladder safety is mostly about habits, and habits are best built through training. Our online Working at Heightscourse covers ladder selection, pre-use checks, correct set-up and the misuse that causes falls, alongside the wider hierarchy of control. It is self-paced, HSA-aligned and just €35, with a certificate the same day. For the bigger picture on stopping falls, read our guide to preventing falls from height.
