Ace the 2025 Ontario Building Code Exam – Construct Your Success Blueprint Today!

In a residential building, the Ontario Building Code specifies that the minimum height for a handrail on a ramp is 950 mm. This height is designed to ensure safety and proper support for individuals using ramps, especially those with mobility challenges. The handrail provides stability and guidance, which is crucial given that ramps can often be used in various scenarios, including navigation for wheelchair users and pedestrians with varied levels of ability.

The specifications for handrail heights are established based on thorough research into ergonomic needs, accessibility standards, and the need to prevent falls. A handrail set at 950 mm permits users to grasp it comfortably, whether they are standing or seated, ensuring that the handrail is effective in preventing accidents. This height requirement aligns with best practices in building codes to promote safety in residential environments.

The other options represent heights that do not meet the requirements set by the Ontario Building Code for residential handrails on ramps, thus an understanding of the code's specifics is essential for compliance and for ensuring that safety standards are maintained.