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Carpenter Red Seal Exam Prep · Question

What is the standard on-centre spacing for exterior wall studs in a typical residential wood-frame construction in Canada, as per the National Building Code of Canada (NBC) 2020?

The most common and standard on-centre spacing for exterior wall studs in Canadian residential construction is 400 mm, as specified in the NBC 2020 to accommoda

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Question: What is the standard on-centre spacing for exterior wall studs in a typical residential wood-frame construction in Canada, as per the National Building Code of Canada (NBC) 2020?

Answer options:

  • 300 mm ✅ 400 mm
  • 450 mm
  • 600 mm

Correct answer: 400 mm

Explanation: The most common and standard on-centre spacing for exterior wall studs in Canadian residential construction is 400 mm, as specified in the NBC 2020 to accommodate standard sheeting dimensions.

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