Let’s be honest, working at height is not something you want to leave to chance. Whether you’re on a construction site, touching up a commercial building, or tackling a maintenance job several metres off the ground, a safety harness is one of the most important pieces of personal protective equipment (PPE) you can wear. And yet, it’s also one of the most commonly misused.
So today, we’re breaking it all down. From fitting to anchoring, here’s everything you need to know about using a safety harness correctly on a scaffold, because getting it right could literally save your life.
Why a Safety Harness Matters on Scaffolding
Scaffolding provides a stable working platform, but it doesn’t make you immune to falls. Guardrails and toe boards are your first line of defence, but a safety harness acts as your last line of defence if everything else fails. Under Australian WHS regulations, fall protection is mandatory when working at heights where a fall could cause injury, generally at or above two metres in most jurisdictions.
A harness that isn’t worn correctly, or isn’t connected to a proper anchor point, offers little more protection than wearing nothing at all. That’s why understanding how to use one properly is just as important as having one in the first place.
Choosing the Right Harness for Scaffold Work
Not all harnesses are created equal. For scaffold work, you’ll typically be looking at a full-body harness, which distributes fall arrest forces across the chest, shoulders, thighs, and pelvis. This is the recommended style for work at height because it minimises injury in the event of a fall.
When selecting a harness, make sure it:
- Meets Australian Standard AS/NZS 1891.1
- Is the correct size for the wearer (most come in adjustable sizes, but fit matters enormously)
- Is in good condition, with no frayed webbing, damaged buckles, or signs of previous fall arrest use
- Is compatible with the lanyard and anchor system you’ll be using
A harness that has already arrested a fall should be removed from service immediately, even if it looks undamaged. The internal fibres may be compromised in ways that aren’t visible to the naked eye.
How to Put On a Full-Body Harness Correctly
This is where many people go wrong. Throwing a harness on like a backpack and clipping the first buckle you find is not the way to go. Follow these steps carefully:
Step 1: Hold it up and untangle it. Grab the harness by the back D-ring and let it hang freely. This helps you identify each strap and ensures nothing is twisted before you put it on.
Step 2: Slip on the shoulder straps. Slide your arms through the shoulder loops as you would a vest. The back D-ring should sit between your shoulder blades, not at the back of your neck or lower back.
Step 3: Fasten the chest strap. Connect the chest strap buckle and position it at mid-chest level. This keeps the shoulder straps from sliding off your shoulders during a fall.
Step 4: Fasten the leg straps. Connect both leg strap buckles. These should sit snugly around your upper thighs, firm enough to stay in place but not so tight they restrict circulation or movement.
Step 5: Check and adjust. Go through every strap and tighten or loosen as needed. The general rule is that you should be able to slide two fingers under any strap, but no more. Tuck away any excess webbing using the keepers so loose ends don’t snag on scaffold components.
Connecting to an Anchor Point on the Scaffold
Wearing a harness is only half the equation. The other half is connecting it properly to an anchor point, and this is where things get technical.
What is an anchor point? An anchor point is a secure structure or dedicated fitting capable of withstanding the forces generated by a fall. For scaffold work, this might be a certified scaffold anchor, a structural horizontal lifeline, or a dedicated anchor rail installed on the scaffold system.
Here are the key rules:
Use only rated anchor points. A scaffold tube, guardrail, or random bolt is not an anchor point. Only use fittings and structures that are specifically rated and certified for fall arrest loads, typically a minimum of 15 kN.
Position your anchor point as high as possible. The higher the anchor, the shorter the free fall distance. An anchor point at foot level is far more dangerous than one at or above head height, even if both are technically “connected.”
Understand your fall clearance. Before you clip in, calculate the total fall distance below you, including the lanyard length, harness stretch, and a safety buffer. If the ground or a lower platform is closer than your total fall clearance, you need a shorter lanyard or a self-retracting lifeline (SRL).
Use a shock-absorbing lanyard. Standard lanyards can generate enormous forces on the body during a fall. A shock-absorbing lanyard, also called an energy-absorbing lanyard, deploys a tear-away pack that significantly reduces peak arrest force on the wearer.
Common Mistakes to Avoid
Even experienced workers can develop bad habits over time. Watch out for these:
- Wearing the harness over bulky clothing: Thick jackets or oversized gear can cause the harness to fit incorrectly. Always adjust for the clothing you’re actually wearing on the day.
- Clipping the lanyard to itself: Your lanyard connects the harness D-ring to the anchor, not to another part of your harness.
- Using damaged equipment: Inspect your harness and lanyard before every single use. It takes two minutes and could save your life.
- Working beyond your lanyard length: If your lanyard allows you to reach an unprotected edge, you’ve negated much of its protective value.
Inspecting and Storing Your Harness
A safety harness needs regular care to remain reliable. After each use, wipe it down with a damp cloth and mild detergent if needed, then allow it to air dry away from direct sunlight. UV exposure degrades webbing over time, so storage in a cool, dry, dark environment is ideal.
Conduct a formal inspection at least every six months, or in line with the manufacturer’s recommendations, and keep a logbook recording each inspection date and the name of the person who carried it out.
If you’re working on a quality mobile aluminium scaffold system and pairing it with properly maintained fall protection gear, you’re already setting yourself up for a much safer working day.
Training Is Not Optional
Reading a blog post is a great start, but it is not a substitute for formal training. In Australia, workers required to use harnesses as part of their fall protection system should complete the relevant unit of competency, typically RIIWHS204E (Work Safely at Heights). This covers harness fitting, anchor point selection, rescue procedures, and more.
Your employer also has a duty to ensure that anyone working at height is trained and competent before they step onto a platform.
Suit Up, Clip In, Work Safe
A safety harness is not a bureaucratic checkbox; it’s a genuine lifesaver. When you’re working on a mobile aluminium scaffold, taking the time to fit your harness correctly and connect to a rated anchor point is the difference between a close call and a tragedy.
At Global Scaffold, safety is at the core of everything we supply. All our scaffold systems are certified to Australian Standards, giving you a reliable foundation to build your fall protection plan around.
Suit up properly, clip in to a rated anchor, inspect your gear before every use, and never cut corners when you’re working above the ground. The job will always be there tomorrow. Make sure you are too.
