Carpenter Red Seal Exam Prep · Question
When framing an exterior wall for a two-storey house using 38 mm x 140 mm (2x6) studs, what is the typical maximum on-centre spacing allowed by the National Building Code of Canada for these load-bearing studs?
For 38 mm x 140 mm (2x6) load-bearing studs in exterior walls of a two-storey house, the NBC allows a maximum spacing of 600 mm on centre. This provides adequat
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Question: When framing an exterior wall for a two-storey house using 38 mm x 140 mm (2x6) studs, what is the typical maximum on-centre spacing allowed by the National Building Code of Canada for these load-bearing studs?
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 38 mm x 140 mm (2x6) load-bearing studs in exterior walls of a two-storey house, the NBC allows a maximum spacing of 600 mm on centre. This provides adequate support for vertical loads.
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