Warning This information has been archived because it is outdated and no longer relevant.

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats on the "Contact Us" page.

3.4.3.3.(1)
ApplicationIntent
OS3OP1OS1
ObjectiveOS3 Safety in Use
Attribution
[F10,F12-OS3.7] [F30-OS3.1]
Application
Application 1: 
Fixtures, turnstiles or construction projecting into, or fixed within, required widths of exits.
This applies to exits serving floor areas that are intended for occupancy, including mezzanines as stated in Sentence 3.4.2.2.(1), in buildings described in Sentence 1.3.3.2.(1) of Division A.
Application 2: 
This also applies to tents and air-supported structures, as stated in Sentences 3.1.6.1.(1) and 9.10.1.2.(1).
Exceptions: 
except as stated in:
  • Sentence 3.4.3.3.(2), which applies to swinging doors,
  • Sentence 3.4.3.3.(4), which applies to handrails and construction below handrails, and
  • Sentences 3.8.1.3.(1) and 3.8.3.3.(1), which apply to barrier-free design in buildings described in Sentence 3.8.1.1.(1).
Top of Page
Intent
Intent 1: 
To limit the probability that obstructions in an exit will reduce the exit width, which could lead to:
  • insufficient width to permit efficient egress in an emergency situation, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, and
  • emergency responders being delayed in gaining access to floor areas in an emergency situation, which could lead to delays or ineffectiveness in emergency response operations, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.
Intent 2: 
To limit the probability that fixtures, turnstiles or construction projecting into, or fixed within, an exit will lead to collision, tripping, falling or other risks of injuries, which could lead to harm to persons.
Top of Page