Temporary Works
Scaffolding & Falsework Safety
Scaffold tagging system, the 10-metre third-party certification rule (Trakhees CSR Sec 9), falsework, staircase towers, and mobile scaffolds.
v2.0Updated 15 Feb 2026ADOSH-SF v4.1 (February 2026)Learning Objectives
- Read the scaffold tag colour system and inspection dates.
- Understand the 10-metre third-party certification rule.
- Follow falsework and staircase tower requirements.
- Operate a mobile scaffold safely (wheels, platform, height ratio).
- Report and rectify scaffold defects.
Awareness Video
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1. Tag System
Green: safe for use. Yellow: use with specific restrictions on the tag. Red: do not use. No tag = do not use. Tag shows scaffolder, inspector, inspection date, next inspection date, permitted load.
2. Third-Party Certification
Trakhees CSR Section 9 requires third-party certification for scaffolds above 10 m, cantilever scaffolds, hanging scaffolds and any bespoke design. Certification renewed after any major modification.
3. Falsework
Formwork supporting concrete during pour and cure must be designed by a competent engineer, checked by a temporary works coordinator, and permit-controlled during strike.
4. Staircase Towers
Provide the primary safe access to scaffolds. Handrails both sides, non-slip treads, gate at each landing, lighting at night.
5. Mobile Scaffolds
Wheels locked before climb, no persons on tower during movement, platform-to-base ratio no greater than 3:1 outdoors, 3.5:1 indoors, guardrails on all sides at working height.
6. Defects
Missing braces, ties, boards, or damaged components = red tag + immediate report. No 'temporary borrowing' of scaffold components. Return of borrowed components tracked.
Knowledge Assessment
1. A Green scaffold tag means:
2. The Trakhees third-party certification rule applies to scaffolds above:
3. Falsework must be designed by:
4. Mobile scaffold outdoor platform-to-base ratio must not exceed:
5. During mobile scaffold movement:
6. A Red scaffold tag means:
7. Staircase towers must have:
8. A missing scaffold tag means:
9. 'Temporary borrowing' of a scaffold brace:
10. Third-party scaffold certification must be renewed after:
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