The Carpentry Section at Otago Polytechnic has previously used saw stools and scaffolding planks for low level scaffolding while building relocatable houses. However, there was a Health & Safety risk because the saw stools are not approved for this use. This paper presents a testing study evaluating the safe working load for timber saw stools used for scaffolding. A total of 30 tests with six load scenarios with different saw cut positions and five load scenarios having different saw cut depths were completed. The test results showed that a saw stool used for scaffolding is very capable of supporting all the imposed loads, with a conservative Factor of Safety (FOS) of 3.5. An inspection checklist and a User Guide Flow Chart have been developed for good practice. This project received support through a New Zealand Timber Design Society Scholarship.
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