01/02/2026
We frame our exterior walls with 2x6 studs only because of the insulation requirements.
Alternatively, we could have framed these exterior walls with 2x4s spaced at 16" o/c and added exterior rigid insulation to meet our R value requirements. Or spray foam of course $$$$.
NBC Table 9.23.10.1 is where you can find the info on stud spacing. Canuto Builders