MarkhamBuilding InspectionsInspections
Openings In Guards/Design To Prevent Climbing
Published by City of Markham
This is the City of Markham’s document, as published on its website on 18 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Guide
- Published by
- City of Markham
- Date
- January 1, 2025
- Also called
- Opening in Guards/Design to Prevent Climbing
- For
- builder
- Building types
- All building types
- Pages
- 2
Overview
The City of Markham's Builder Tip No. 88, dated January 1, 2025, on guards that children cannot climb, one of the City's housing tips under the 2024 Ontario Building Code; the City's New Home Report points to it for guard configuration. It quotes Article 9.8.8.6. and Sentence 3.3.1.18.(4) on members, attachments and openings between 140 mm and 900 mm. Its objective covers 100 mm baluster spacing, ladder effects, diagrams based on a National Research Council Canada opinion on horizontal members over 450 mm, and decorative elements covered with safety glass.
What it covers
- 9.8.8.6. Guards Designed Not to Facilitate Climbing
- 3.3.1.18. Guards
- Objective
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