2024 Ontario Building Code Guide: Public and Class B Pool Construction Standards
Sarah's Expert Insight
OBC Compliance Specialist
"Compliance with Section 3.11.3.1 is a critical 'make-or-break' factor for commercial projects in London and luxury resort developments in Muskoka or Oakville, where barrier-free access is both a legal requirement and a design priority. At empcontracting.ca Inc., your construction contractor in London, Ontario, we ensure that technical details like slope gradients and deck drainage are precision-engineered to pass inspections the first time, protecting your investment and user safety."
Navigating the complexities of the 2024 Ontario Building Code (OBC) is essential for any commercial or institutional pool installation. At empcontracting.ca Inc. your construction contractor in London, Ontario, we specialize in ensuring your facility meets every regulatory standard for safety, drainage, and accessibility.
Understanding OBC Section 3.11.3.1: Public Pool Design
Class B Pool Exemptions and Specialized Use
The OBC provides specific exemptions for Class B pools used in conjunction with clubs, child care facilities, day camps, and care institutions. Under Sentences (2) and (3), these facilities may be exempt from certain deck width and safety line requirements depending on the nature of the institution, particularly those treating persons with disabilities or illnesses.
Minimum Water Depth and Entry Safety
Public pools are generally required to have a water depth of at least 750 mm. Key exceptions include therapeutic pools, wave action pools, and beach entry ramps. However, when utilizing a beach entry ramp, Section 3.11.3.1.(5) mandates permanent barriers between 900 mm and 1200 mm to prevent pool entry until the minimum safe depth is achieved.
Slope Specifications and Safety Lines
To prevent sudden drops and ensure swimmer safety, the slope of the pool bottom is strictly regulated:
- 8% slope: For water depths of 1350 mm or less.
- 33% slope: For depths between 1350 mm and 2000 mm.
- 50% slope: For depths of 2000 mm or more.
If any portion of the pool slope exceeds 8%, the construction must include recessed fittings for safety lines and buoys to mark the transition.
Pool Deck Requirements and Barrier-Free Path of Travel
A hard-surfaced deck is mandatory for public pools. Sentence (9) requires a minimum width of 1800 mm, with at least 1100 mm designated as a barrier-free path of travel. Proper drainage is also critical: outdoor decks must slope away from the pool at 2% to 4%, while indoor decks require a slope of 1% to 4% toward waste drains.
Wall Construction and Safety Ledges
Pool walls must remain vertical until they reach a depth of 1350 mm or within 150 mm of the bottom. For deep-end safety, any constructed ledges must be at least 1000 mm below the water surface and feature a contrasting color band to ensure visibility for swimmers.
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.