Why Scaffolding Safety Matters

Scaffolding is the most widely used access solution in UK construction, but it's also responsible for a significant proportion of serious injuries. Each year, scaffold-related incidents account for approximately 4,000 injuries and several fatalities. Most incidents involve falls from the scaffold, scaffold collapse, or objects falling from scaffolds onto people below.

The good news: the vast majority of scaffold incidents are caused by known, preventable failures. Get the basics right — design, erection, inspection, and use — and you eliminate most of the risk.

Legal Framework for Scaffolding

Scaffolding is governed by multiple sets of regulations:

• Work at Height Regulations 2005 — The primary legislation. Requires scaffolds to be properly planned, erected by competent persons, and inspected at defined intervals.
• CDM 2015 — Requires scaffolding risks to be considered in design, construction phase plans, and RAMS.
• LOLER 1998 — Applies where scaffolds are used as part of lifting operations (loading bays, mast climbers).
• BS EN 12811 — The design standard for temporary works. Specifies structural requirements, dimensions, and load ratings.
• TG20:21 — NASC technical guidance for tube and fitting scaffolds. Provides compliance sheets for standard configurations.

What Must Be in a Scaffolding RAMS

A RAMS for scaffolding work must cover both the erection/dismantling process and the use of the completed scaffold by other trades. Key sections include:

Erection and Dismantling

• Scaffold design or TG20 compliance sheet reference
• Foundation assessment — ground conditions, base plates, sole boards
• Sequence of erection (advance guardrail systems or other edge protection during erection)
• Tie pattern and tie types (through ties, box ties, lip ties)
• Bracing requirements
• Loading bays, access ladders, and ladder traps
• Dismantling sequence — always top-down, never remove ties before the lift above is removed
• Competence requirements — CISRS trained scaffolders at appropriate level

Use by Other Trades

• Permitted loads — people, materials, equipment
• Maximum number of boarded lifts that can be loaded simultaneously
• Restrictions on modifications — no one other than scaffolders should alter the scaffold
• Rules for sheeting and netting (affects wind loading significantly)
• Housekeeping requirements — clear platforms, no trip hazards

The 7-Day Inspection Requirement

The Work at Height Regulations require scaffolds to be inspected by a competent person:

• Before first use — After erection and before any trade accesses it
• At intervals not exceeding 7 days — Count from the last inspection, not from Monday to Monday
• After any event likely to affect stability — High winds (typically Beaufort Force 6+), vehicle impact, adjacent excavation, or any unauthorised modification

What the Inspector Must Check

A scaffold inspection isn't a quick glance. The competent person must verify:

• Foundations: Base plates level, sole boards in good condition, no undermining or settlement
• Standards: Plumb, at correct spacing, properly connected
• Ledgers and transoms: Level, properly coupled, at correct spacing
• Bracing: Complete and properly connected — check diagonal bracing, plan bracing, and facade bracing
• Ties: All ties in place, correct pattern, properly connected to the building (this is the most critical check)
• Platforms: Fully boarded with no gaps greater than 25mm, boards in good condition, not split or warped
• Guardrails: Top rail between 950mm-1100mm above platform, mid-rail in place, toe boards at least 150mm high
• Access: Ladder access properly secured, ladder extends at least 1m above landing point, ladder traps in place
• Loading: No overloading, materials stored safely, waste cleared
• General condition: No damaged components, no unauthorised modifications, signage in place

Recording Inspections

Inspection results must be recorded in writing and include:

• Name and position of the person inspecting
• Location and description of the scaffold
• Date and time of inspection
• Matters checked
• Any defects identified
• Action taken regarding defects
• Details of any further action required

Records must be kept on site until the project is complete, then retained for a further 3 months. Use a scaffold inspection register — HSE can ask to see these at any time.

Most Common Scaffold Failures

Analysis of scaffold incidents consistently reveals the same underlying causes:

1. Missing or Inadequate Ties

Ties are what stop a scaffold falling away from the building. Missing ties are the single most common cause of scaffold collapse. Common issues:

• Ties removed by other trades to access the building facade and not replaced
• Tie pattern not matching the design — too few ties or wrong spacing
• Ties connected to unsuitable anchor points (plasterboard walls, timber frames)
• Reveal ties in window openings displaced when windows are installed

2. Incomplete Guardrails

Falls from scaffold platforms with missing or incomplete guardrails account for numerous serious injuries. Watch for:

• Guardrails removed for material access and not replaced
• End returns missing — the gap at the end of a scaffold run
• Inner guardrails missing — the side facing the building is just as dangerous
• Guardrails not properly secured — clips missing or loose

3. Overloading

Scaffolds have defined load capacities. Overloading causes progressive failure:

• Stacking heavy materials (bricks, blocks, concrete) beyond the scaffold's rated capacity
• Loading multiple lifts simultaneously when the design only permits one loaded lift
• Using the scaffold as a storage area rather than a working platform

4. Foundation Failures

• No sole boards on soft ground — base plates punch into soil
• Sole boards on uneven ground without proper packing
• Adjacent excavation undermining foundations
• Water pooling and softening the ground beneath standards

5. Unauthorised Modifications

Anyone other than a competent scaffolder altering a scaffold is a serious issue:

• Removing boards to create "material drops" to lower floors
• Removing bracing to fit equipment or sheeting
• Adding hoists or loading points not in the original design
• Extending the scaffold height beyond the designed configuration

Scaffolding Competence: CISRS Standards

The Construction Industry Scaffolders Record Scheme (CISRS) is the recognised competence framework for UK scaffolders:

• CISRS Labourer — Can assist but not erect scaffolds
• CISRS Trainee Scaffolder — Working towards Part 1
• CISRS Part 1 Scaffolder — Can erect basic tube and fitting scaffolds under supervision
• CISRS Part 2 Scaffolder — Can erect tube and fitting scaffolds independently
• CISRS Advanced Scaffolder — Complex and non-standard configurations
• CISRS Basic and Advanced Inspection — Qualified to carry out the 7-day inspections

Your RAMS should specify the minimum CISRS level required for the scaffold being erected.

Generate Your Scaffolding RAMS with DocGen

Scaffolding RAMS need to be thorough and specific. DocGen's AI generator creates scaffolding RAMS that cover erection sequences, tie patterns, inspection schedules, load capacities, and all the detail that keeps your site compliant. Describe your scaffold configuration and we'll do the rest.