Footings & Foundations
Footing depth in clay and frost, the floating-deck exemption, Leda clay and engineered design, helical piles, and Ontario One Call before digging
Does my septic system affect where an Ottawa deck can go?
Yes, your septic system affects both where a deck can go and what the permit drawings must show. The City of Ottawa's permit requirements ask for a...
Who is responsible for digging safely under Ontario law?
Under the Ontario Underground Infrastructure Notification System Act, 2012, the responsibility falls on the excavator, and that term covers anyone...
Is 1.2 m the minimum deck footing depth in Ottawa clay?
In clay or soils not clearly defined, the 2024 Ontario Building Code table (9.12.2.2) sets 1.2 m, but not less than the depth of frost penetration,...
Floating deck rules under the Ontario Building Code?
The 2024 Ontario Building Code includes a specific exemption for floating decks under section 9.12.2.2(7). It lets a deck sit on shallow or...