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Chap strike is a relatively common occurrence in high volume tree felling operations (such as forestry thinning), but is preventable. Causes are often linked to fatigue, body positioning, or limited experience.
In July this year we looked into the incidents of chap strike (when chainsaw operators accidentally have the chain contact and cut into their protective chaps) reported during wilding conifer control operations. We were looking for any common factors among the nine incidents reported between 2022 and 2025 and found that:
- In all cases, protective chaps were worn which prevented injury—an example of “failing safely.”
- Contractors in each case responded and followed up appropriately, with reassessments and regular Safe Behaviour Observations helping to maintain safety standards.
- Incidents mostly occurred in proportion with the areas where the majority of control operations took place, and the rate of incidents was steady – around three each year.
Conclusion: Chap strikes remain a steady but manageable risk in wilding conifer control. The consistent use of protective gear and proactive safety practices by contractors are helping to keep workers safe.
Related
For a guide to protective measures when using chainsaws, see the Good Practice Guide for Cut Stump operations
Browse all Good Practice Guides
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