2024 Ontario Building Code: Exterior Wall Stud Sizes for Brick Veneer Construction
Sarah's Expert Insight
OBC Compliance Specialist
"Understanding these structural requirements is vital for projects in London and the snow-heavy regions of Muskoka, where wind pressures and snow loads often dictate the transition from single to double 38x140mm studs. At empcontracting.ca Inc., your construction contractor in London, Ontario, we ensure every brick veneer installation precisely follows these 2024 OBC updates to guarantee structural safety and code compliance."
Compliance for Northern Species No. 2 Grade Exterior Wall Studs
When planning your next residential build, it is essential to adhere to the 2024 Building Code Compendium. For projects involving brick veneer, empcontracting.ca Inc. your construction contractor in London, Ontario ensures that all structural components meet the rigorous standards of Table 9.23.10.1.-C. This table dictates the required stud size and spacing based on wind pressure, snow loads, and roof length.
Structural Specifications and Load Parameters
Table 9.23.10.1.-C provides specific requirements for Northern Species No. 2 Grade studs. The code accounts for varying environmental factors including:
- Hourly Wind Pressure (1/50): Ranging from 0.40 to 0.60 kPa.
- Specified Roof Snow Load: Values ranging from 1.0 to 3.0 kPa.
- Stud Length: Calculations for heights between 3.8m and 5.6m.
- Supported Roof Length: Measured at 3.0m and 6.0m intervals.
Legend: Stud Size and Spacing Requirements
The following classifications determine the structural layout for exterior walls:
- A: 38 × 140 mm at 400 mm on centre
- B: 38 × 140 mm at 300 mm on centre
- C: Two 38 × 140 mm studs at 400 mm on centre
- D: Two 38 × 140 mm studs at 300 mm on centre
Critical Limitations and Notes
Compliance with Table 9.23.10.1.-C assumes a roof dead load of 0.5 kPa. It is important to note that these tables are not applicable if the studs support heavy roofing materials, such as concrete or clay tiles. In such cases, alternative engineering specifications are required to ensure the safety and longevity of the structure.
Disclaimer: This content is generated from the Ontario Building Code for educational purposes. Always consult with a licensed professional engineer or your local building department before starting any construction project in London, Ontario.