What measurement system is predominantly employed in the Building Code?

The measurement system predominantly used in the Ontario Building Code is the metric measurement system. This aligns with the provincial and national standards in Canada, which have fully adopted the metric system for building and construction purposes. Utilizing the metric system helps ensure consistency, clarity, and efficiency in communication and documentation in the construction industry across Canada.

Additionally, the use of the metric system allows for easier calculations and conversions among different measurements, such as length, area, and volume. This is particularly advantageous in the context of construction, where accuracy is crucial for both safety and compliance with building regulations.

The other measurement systems are less relevant in this context. The imperial measurement system is commonly used in certain regions, particularly in the United States, but is not the standard for the Ontario Building Code. The US customary measurement system is similarly specific to the United States and not applicable in Canada. A combined metric and imperial system may be seen in some materials and discussions, but official regulatory documents like the Ontario Building Code specifically utilize the metric system.