Guardrails, Toe Boards and Platforms
What this domain covers
Guardrails, Toe Boards and Platforms tests the fall-protection hardware and the working surface. The exam wants you to know what must be in place before a platform is used, how the components work together, and why a missing or badly fitted part makes the tower unfit.
Core rules
- A safe working platform is fully boarded, correctly located and secured, with no gaps that allow a person or material to fall.
- Guardrails normally comprise a top rail, an intermediate rail and toe boards. BS EN 1004 uses nominal heights of about 1.0 m for the top guardrail, 0.5 m for the intermediate guardrail and 150 mm for the toe board; always follow the manufacturer's instructions for the specific tower.
- Toe boards are required on all open sides of a platform, not just the side facing the work. They protect people below from dropped tools and materials.
- Trapdoors must be closed when not in use. Do not stand on an unguarded platform, and do not use the guardrail as an anchor or a load-bearing point.
- Guardrails must be fitted before the platform is occupied. Advanced guardrail systems let the next level's guardrail be placed from below; through-the-trapdoor systems require the platform and trapdoor to be used correctly.
- Check that rails are engaged, locking pins are in place and toe boards are secure. Damaged or missing parts mean the tower is out of service.
Worked example
At 3 m, a platform has a top rail and toe board on the outside face, but the intermediate rail is missing on the inside face. The tower is not fit for use. The missing intermediate rail leaves a gap that could allow a fall, and the toe board is only effective on the side where it is fitted. The correct action is to bar access, fit the correct intermediate rail and toe boards on all open sides, then recheck before work starts. The reasoning is that guardrail protection must be continuous around the platform.
Traps that cost marks
Fitting toe boards on one side only; assuming a top rail alone is enough; leaving trapdoors open; using incompatible rails; and treating a platform as safe before the guardrail is complete.