11 Construction Safety Topics for Toolbox Talks, With Free Slides

These construction safety topics cover the hazards that kill and injure people on building sites, one toolbox talk each. In 2024, 23.0% of fatal accidents at work in the EU happened in construction, the highest share of any sector.^[1] Each topic comes with talking points and, where we have one, a free PowerPoint slide.

Before you pick a topic, check:

1. Which work starts on site this week
2. What went wrong, or nearly did, recently
3. Who is in the crew: new starters, subcontractors, other languages

Part 1: What a Toolbox Talk Is and How to Run One

A toolbox talk, or safety moment, is a short briefing on one hazard, given on site by the supervisor before work starts. It does not replace formal training; it keeps it alive. EU law requires every worker to receive adequate safety and health training;^[2] in Switzerland, instruction is due when work starts and after every significant change, and is repeated where necessary (VUV Art. 6).^[3]

• One topic, ten minutes, where the hazard is: at the scaffold, the trench, the distribution board.
• Ask, don't read: "What could go wrong here today?"

Our safety moment slides: one free PowerPoint slide per topic, ready to show or print.

Part 2: Match Construction Safety Topics to This Week's Work

On site this week	Toolbox talk
Scaffolding, roof work, open edges, work platforms	Working at height
Groundworks, trenches, manholes	Excavations; confined spaces
Temporary power, electrical fit-out, commissioning	Electrical safety and lockout
Deliveries, cranes, excavators	Vehicles, plant and lifting
Cutting, drilling, breaking concrete	Dust, chemicals and noise
Welding, grinding, torch-on roofing	Fire and hot work
New starters or subcontractors	PPE; housekeeping
An accident or near miss	That hazard, the same week

For the weather: heat stress in summer, cold stress in winter.

Part 3: Working at Height

Suva calls falls the deadliest accident hazard at work: in Switzerland, one in three occupational accidents ending in death or permanent disability is a fall, and about half of the fatal falls are from 5 m or less.^[4]

• Guardrails, nets and complete scaffolds first; a harness only where they are not possible, with a rescue plan.
• Check the scaffold inspection tag before you climb. No valid tag, no access.
• Ladders for short jobs only, secured, three points of contact.
• Cover openings; keep people out of the drop zone with safety signage and barriers.

Free slide: dangers of working at heights.

Part 4: Slips, Trips and Housekeeping

• Keep walkways, stairs and exits clear; store materials off the route.
• Run cables overhead or along walls, never across walkways.
• Clear waste daily; deal with mud, ice and spills at once.

Free slide: housekeeping on construction sites.

Part 5: Electrical Safety and Lockout

• Keep clear of overhead lines and buried cables.
• Use RCD-protected supplies; check tools and leads before use.
• Before work on a distribution board or machine: isolate, fit your own padlock and tag, release stored energy, verify that nothing can start. One person, one lock, one key.

An electrical lockout kit with two padlocks and three clamp-on lockouts for miniature circuit breakers keeps the devices together on site. Free slide: lockout tagout.

Part 6: Personal Protective Equipment (PPE)

• Site minimum: helmet (EN 397), safety footwear (EN ISO 20345), high-visibility clothing (EN ISO 20471).
• For the task: eye and hearing protection, cut-resistant gloves, respiratory protection.
• Check it before use, adjust the fit, replace what is damaged.

Free slide: PPE compliance.

Part 7: Vehicles, Plant and Lifting

On Swiss sites, accidents with construction machinery and with slinging crane loads have some of the most serious consequences, along with falls.^[5]

• Separate people from vehicles: marked walkways, barriers, one-way routes.
• Stay out of blind spots; use a banksman when reversing.
• Never stand under a suspended load; only trained people sling loads.

Part 8: Manual Handling

• Use a trolley, pallet truck or hoist before lifting blocks, bags or kerbs by hand.
• Keep the load close, lift with your legs, don't twist.
• Lift heavy or awkward items as a team, with one person calling the lift.

Free slide: lifting and handling.

Part 9: Dust, Chemicals and Noise

• Read the label and safety data sheet before use.
• Cutting concrete, stone or brick releases silica dust: cut wet or with extraction, and wear respiratory protection.
• Wet cement burns skin: gloves, long sleeves, eye protection. Know where the eyewash is.
• Noise: Directive 2003/10/EC sets action values of 80 and 85 dB(A) and a limit of 87 dB(A) over the working day.^[6] Around breakers, saws and grinders, wear hearing protection the whole time.

Free slides: chemicals and hazardous materials, noise protection.

Part 10: Excavations and Trenches

Trench walls collapse without warning. In Switzerland, trenches and pits deeper than 1.5 m must be shored, sloped or otherwise secured (BauAV Art. 68).^[7]

• Locate buried services before digging.
• Keep spoil and plant back from the edge; use a ladder or stairs, never the shoring.
• Mark the edge, for example with a red and white plastic safety chain. A chain warns but stops nobody: where people could fall in, fit edge protection.

Part 11: Fire and Hot Work

• Run welding, cutting, grinding and torch-on roofing under a hot work permit.
• Clear combustibles, keep an extinguisher at the job and a fire watch after it.
• Know the alarm, the escape routes and the assembly point.

Free slide: fire watch and hot work permits.

Part 12: Confined Spaces

• Manholes, shafts and tanks can hold toxic gas or too little oxygen: enter only under a permit, after testing the air, and keep testing.
• Lock out pumps and valves before entry.
• A standby person stays outside with a rescue plan. Never go in after a colleague without breathing apparatus.
• Close off open manholes: a confined space manway cover blocks the opening and warns others away.

Free slide: confined space awareness.

Part 13: Mental Health and Fatigue

• Warning signs: withdrawal, irritability, mistakes, tiredness.
• Say who to talk to: the supervisor, the company support line, a doctor.
• Tired people make mistakes: plan breaks and reasonable hours.

Free slide: mental health awareness.

Part 14: Where The Lock Box Fits

Tags, signs and barriers keep the talk's message on site all day. Our signage and barrier range has scaffold inspection tags, plastic safety chain and safety bollards for exclusion zones, and manway covers; for site electrics, the electrical lockout kit. Which sign goes where: our guide to workplace safety signage. Before non-routine work at height, record the protection, anchor points and rescue plan in our free working at height permit (PDF, Word or Excel).

Need Tags and Barriers for Your Site?

Contact The Lock Box with your site's work (scaffolds, trenches, distribution boards) and we will suggest matching tags, barriers and lockout devices.

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References

1. Eurostat. Accidents at work statistics (data for 2024). https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Accidents_at_work_statistics
2. EU-OSHA. Directive 89/391/EEC, the OSH Framework Directive (Article 12, training of workers). https://osha.europa.eu/en/legislation/directives/the-osh-framework-directive/1
3. Swiss Federal Council. Verordnung über die Unfallverhütung (VUV), SR 832.30, Art. 6 (German; French: OPA). https://www.fedlex.admin.ch/eli/cc/1983/1968_1968_1968/de
4. Suva. Absturzsicherung: Zahlen und Fakten zu Abstürzen. https://www.suva.ch/de-ch/praevention/nach-branchen/baustellen-sicher-machen/absturzsicherung
5. Suva. Baustellen sicher machen. https://www.suva.ch/de-ch/praevention/nach-branchen/baustellen-sicher-machen
6. EU-OSHA. Directive 2003/10/EC, noise. https://osha.europa.eu/en/legislation/directives/82
7. Suva. Gräben, Schächte und Baugruben (BauAV Art. 68). https://www.suva.ch/de-ch/praevention/nach-branchen/baustellen-sicher-machen/unternehmer-und-kader-baustelle/graeben-schaechte-baugruben