Ainscaff · Commercial & Access Scaffolding · Dublin

Edge protection systems: guardrails, nets and when each applies

Edge protection is collective fall protection fixed at an exposed edge so that no one can fall from it. The core system is a guardrail arrangement: a main guardrail, an intermediate rail and a toe board, sized so the gaps are small enough to stop a person or a falling object. Brick guards add containment where materials are stacked, and safety nets provide collective protection under a leading edge where guardrails cannot yet be fitted. The Safety, Health and Welfare at Work (Work at Height) Regulations require collective measures like these to be considered before personal fall-arrest.

Falls from height remain the single biggest cause of death and serious injury in Irish construction, and the first line of defence is collective protection: systems that protect everyone on the edge at once, without relying on each worker to clip on. Edge protection is that first line.

This guide sets out the main edge protection systems a main contractor specifies, what the law expects of them, and where each one earns its place on a commercial site.

Why collective protection comes first

Under the Work at Height Regulations, the duty is to prevent falls, and collective measures that protect everyone are preferred over personal measures that protect one person and depend on them using it correctly. A guardrail protects the whole edge whether the worker remembers to clip on or not, which is why edge protection is specified before harnesses on most commercial work.

Guardrails, toe boards and brick guards

The standard edge protection to a scaffold or slab edge is a double guardrail with a toe board: a main rail at the top, an intermediate rail below it, and a toe board at deck level to stop tools and materials being kicked off. The heights and gaps are set so a person cannot fall through and objects cannot roll off. Where materials such as blocks or pallets are stored near the edge, brick guards (mesh panels) are added to contain them.

Safety nets and the leading edge

Some work, steel erection, roof and floor decking, creates a leading edge that moves ahead of any fixed guardrail. Here safety nets provide collective protection: rigged as close beneath the work as practicable, they catch a falling worker and reduce the fall distance and the forces involved. Nets are a specialist rig and are the recognised collective solution where guardrails cannot keep pace with the work.

Which system, where

On a real site these are combined, not chosen in isolation, a facade scaffold with guardrails, brick guards where materials land, and nets over any open leading edge.

Specified and installed correctly

Edge protection is only as good as its design and installation. Ainscaff designs and erects edge protection to EN 12811 and TG20 with CIRI-registered, Safepass-trained crews, and it is handed over inspected and tagged. It links to the wider commercial scaffolding package rather than being a bolt-on afterthought. See loading bays and material handling platforms for the next piece of site access.

Frequently asked questions

• Is edge protection a legal requirement in Ireland?

  Preventing falls from height is a legal duty under the Work at Height Regulations, and collective measures such as edge protection must be considered before personal fall-arrest. The law sets the outcome, a protected edge, with edge protection the standard way to achieve it.
• What is the difference between a guardrail and a safety net?

  A guardrail stops a fall at a fixed edge, protecting people before they fall. A safety net catches a person after a fall, and is used at a leading edge where a guardrail cannot yet be fitted. Both are collective measures; they suit different stages of the work.
• Do you need toe boards as well as guardrails?

  Yes, for most platforms. Toe boards stop tools and materials being kicked off the edge onto people below, and are part of the standard double-guardrail arrangement. Brick guards are added where materials are stored near the edge.