Canadian building code question

What are the building code requirements for elevator lobbies in Canada?

Elevator lobbies are required in specific conditions under the NBC — primarily in high-rise buildings and care or detention occupancies — and must meet fire separation, pressurization, and vestibule requirements that vary with building height, occupancy, and sprinkler status.

Elevator lobby requirements catch many projects off guard because they are not universal — they trigger based on building classification, height, and occupancy type. When they do apply, the fire separation rating, door hardware, and pressurization or vestibule conditions are tightly specified and vary by province.

What to check first

  • Elevator lobbies are not required in every building — the trigger is typically high-rise classification or specific occupancy types like care, treatment, or detention.
  • When required, the lobby must meet fire separation, door, and pressurization or vestibule conditions that depend on the building's sprinkler status and height.
  • Provincial codes may add or relax lobby requirements — always confirm the local adoption before finalizing the design.

Jurisdiction notes

National baseline

The NBC specifies when elevator lobbies are required and the associated fire separation, door, and pressurization rules.

Provincial adoption check

Some provinces amend the high-rise threshold or add elevator lobby requirements for occupancies not triggered under the NBC alone.

Project-specific variables

Building height, occupancy classification, sprinkler status, and smoke control strategy all affect whether a lobby is required and what it must include.

Work through it in this order

  1. Determine whether the building meets the high-rise definition or occupancy trigger for elevator lobbies.
  2. Review the NBC elevator lobby provisions including fire separation rating and door requirements.
  3. Check pressurization or vestibule conditions and how they interact with the building's smoke control strategy.
  4. Confirm provincial adoption and any local amendments before finalizing the lobby design.
  5. Document the specific referenced sections for permit submission.

Common questions

Are elevator lobbies required in all buildings in Canada?

No. They are triggered by specific conditions — typically high-rise classification or care/treatment/detention occupancies. Low-rise buildings generally do not require them.

What fire separation rating is required for an elevator lobby?

The rating depends on the floor fire separation and occupancy. The NBC specifies the minimum, but the applicable provincial code may adjust it.

Can sprinklering eliminate the elevator lobby requirement?

In some cases sprinklering changes the pressurization or vestibule requirements, but it does not universally eliminate the lobby itself. Check the specific NBC and provincial provisions.