Carpenter Red Seal Exam Prep · Question
When framing a standard residential wall with 38 mm x 89 mm (2x4) lumber, what is the typical maximum on-centre spacing for studs supporting a single storey and roof assembly in a non-bearing partition, according to the National Building Code of Canada?
For non-load-bearing partitions, the NBC allows 38x89 mm studs to be spaced at a maximum of 600 mm on centre. This provides adequate support for finishes and in
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Question: When framing a standard residential wall with 38 mm x 89 mm (2x4) lumber, what is the typical maximum on-centre spacing for studs supporting a single storey and roof assembly in a non-bearing partition, according to the National Building Code of Canada?
Answer options: ✅ 600 mm on centre
- 400 mm on centre
- 300 mm on centre
- 450 mm on centre
Correct answer: 600 mm on centre
Explanation: For non-load-bearing partitions, the NBC allows 38x89 mm studs to be spaced at a maximum of 600 mm on centre. This provides adequate support for finishes and insulation.
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