What is the minimum distance between an outdoor grill and a pergola in Ottawa?

Great question, and one that catches a lot of Ottawa homeowners off guard when they are planning an outdoor kitchen or dining area under a pergola.

In Ottawa, the minimum clearance between a gas or charcoal grill and any overhead combustible structure — including a pergola, awning, or covered patio — is 36 inches (approximately 900 millimetres) measured from the top of the grill to the lowest point of the overhead structure. However, many grill manufacturers specify 60 inches (1.5 metres) of clearance in their installation manuals, and that manufacturer requirement takes precedence for warranty and insurance purposes. If your grill manual specifies 60 inches, that is the number you need to respect — not the minimum code figure.

This matters in Ottawa for a few practical reasons beyond just fire safety. The National Building Code of Canada and Ontario's Fire Code both establish minimum clearances for open-flame appliances near combustible materials, and your home insurance policy will typically reference manufacturer installation requirements as part of coverage conditions. If a fire originates from a grill installed too close to a pergola, and the installation did not comply with the manufacturer's specifications, your insurer has grounds to deny the claim. That is a costly lesson no one wants to learn.

The material of your pergola matters significantly here. An open cedar or pressure-treated pergola with widely spaced rafters presents less risk than a pergola with a solid polycarbonate roof, a fabric canopy, or dense lattice work that traps heat. Solid or semi-solid roof structures require greater clearance and, if they are attached to the house, may also require a non-combustible zone around the grill. Gas grills with side burners and rotisserie burners produce more lateral and overhead heat than a basic two-burner unit, so factor in the full heat output of your specific appliance.

For gas grills specifically, any natural gas line running to a built-in grill must be installed by a TSSA-licensed gas fitter with the appropriate permit — this is non-negotiable in Ontario regardless of how simple the connection appears. The TSSA inspection will also look at the installation context, including proximity to combustible overhead structures, so getting the clearances right before the inspection saves everyone time.

A practical tip for Ottawa pergola and outdoor kitchen planning: if you are designing a covered outdoor cooking area from scratch, consider incorporating a non-combustible zone directly above the grill using a metal or stone ceiling panel, or positioning the grill at the open end or side of the pergola where clearance is naturally greater. Many Ottawa homeowners also install a proper range hood or exhaust fan above a built-in grill, which both manages heat and smoke and helps satisfy clearance concerns by creating a defined ventilated zone.

If you are planning a pergola and outdoor kitchen together as an integrated project, that is exactly the kind of work where getting a professional outdoor living contractor involved early pays off — they can design the layout with proper clearances built in from the start rather than retrofitting around a grill that ends up too close to the structure. You can browse outdoor kitchen and pergola contractors through the Ottawa Construction Network directory at justynrookcontracting.com/directory if you are at that planning stage.