Guide
Concrete breaker size guide: small, medium or heavy?
A practical breaker-size guide based on slab thickness, access, reinforcement, vibration and waste, not just “bigger is better”.
Quick answer
Small and medium breakers are easier to control; heavy breakers only help when the material, access and operator can handle the weight, vibration and waste.
Typical example
Thin path edges can often start with a medium breaker. A thick reinforced pad may need heavy kit, saw cuts, helpers and careful HAV/noise planning.
Checks before hire
- Match breaker weight to access route and operator control.
- Hire pointed and flat chisels where relevant.
- Account for vibration breaks and neighbours.
- Have rubble tubs, barrow or skip ready.
When to stop
- Stop if you cannot move the breaker safely, cannot manage vibration/noise, or do not know what supports the concrete.
Turn it into a hire card
Use the matching planner to turn this note into a practical kit class, consumables list, PPE checks and copyable handoff summary.
Open the Concrete breaker size planner