Working on Steel at Height

Working on steel structures at height is one of the most dangerous activities in construction, combining fall and struck-by risks.
Steel beams, columns, and purlins provide narrow, exposed working surfaces with limited edge protection during erection.
The Work at Height Regulations 2005 require that collective protection such as nets and platforms is used in preference to harnesses.
Safety nets installed below the working level provide collective fall protection for steel erectors across a wide area.
Where nets cannot be used, full-body harnesses with shock absorbers and twin-tail lanyards are required for all workers.
Anchor points for harnesses must be identified and rated before work begins — structural steel connections are not always suitable.
Steel surfaces become extremely slippery when wet, frosty, or covered in paint or primer residue.
Bolt bags, tool lanyards, and toe boards prevent tools and bolts from falling and striking workers below the steel.
Wind speed must be monitored — steel erection at height should cease when speeds exceed the agreed limit for the task.
A rescue plan for recovering a worker fallen into a safety net or suspended in a harness must be ready before work starts.

Extreme fall risk	Steel erection involves walking on narrow beams at height with minimal edge protection — a single slip is often fatal.
Collective protection first	Safety nets protect everyone in the area regardless of behaviour — harnesses rely on each individual clipping on correctly every time.
Falling objects	Dropped bolts and tools from steel at height strike workers below with potentially fatal force — tethering prevents this.

Do

Don't

Install safety nets below the working level wherever the programme and structure allow.
Wear a full-body harness with shock absorber and twin-tail lanyard where nets are absent.
Identify and verify rated anchor points before attaching harnesses to the structure.
Use tool lanyards and bolt bags to prevent objects falling from the steel.
Monitor wind speed and stop work when conditions exceed the agreed safe limit.
Ensure a rescue plan is ready and briefed before anyone accesses the steel.
Check steel surfaces for ice, frost, wet paint, or primer before stepping on them.
Maintain exclusion zones below the steel erection area to protect workers from falling items.
Clip on to the anchor before moving onto exposed steel — not after reaching the position.
Brief all steel erectors on the fall protection plan at the start of every shift.

DON'T work on steel at height without either safety nets or a harness system in place.
DON'T use a harness without a shock absorber — arrest forces without one cause injury.
DON'T clip on to unverified anchor points — structural connections may not be rated.
DON'T carry loose tools or bolts in pockets — use lanyards and bolt bags.
DON'T continue steel erection in high winds beyond the agreed stop-work speed.
DON'T start work at height on steel without a rescue plan tested and ready.
DON'T step onto wet, icy, or freshly painted steel without checking grip conditions.
DON'T allow workers below the steel erection zone without overhead protection.
DON'T walk onto exposed steel before clipping on — attach at the safe access point.
DON'T skip the daily fall protection briefing — conditions change with every shift.

See also: Steel Erection Safety | Falls From Height Awareness

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