Every commercial locksmith in Ontario has had this conversation. A business owner asks for something perfectly reasonable-sounding — a deadbolt on the inside of the back door, a padlock and hasp overnight, a bolt that staff throw at closing — and we have to say no.
It is not caution and it is not upselling. Those arrangements are code violations, they are the arrangements that have killed people in fires, and there are compliant ways to get what you actually want.
The Rule, In One Sentence
Ontario’s Building Code and Fire Code require that occupants be able to leave through an exit door in a single motion, without a key, and without special knowledge.
One push, or one turn of a thumbturn, and out. No fumbling for a key. No knowing that you have to release the bolt at the top first. No remembering which of the two locks is the one that matters. Somebody who has never been in the building before, in smoke, must be able to get out.
The Four Things We Are Asked For And Cannot Fit
A key-operated deadbolt on the inside
The most common request. It feels sensible: staff leave through the front, the back door is secured with a key. In a fire, anyone in the back of the building is now standing at a locked door looking for a key that is in someone else’s pocket.
A padlock and hasp overnight
Common on restaurant and warehouse back doors. Perfectly secure and completely non-compliant if anyone is inside — and someone always ends up inside, doing a deep clean, taking a delivery, or finishing paperwork.
A secondary bolt that must be released manually
A barrel bolt or a drop bolt thrown at closing and released in the morning. This is “special knowledge” and it is exactly what the code prohibits. It also fails the single-motion test.
Removing the door closer
Usually because the door slams, or because staff want it propped open on a hot day. On a rated fire door the closer is part of the rated assembly, and removing it voids the rating on the whole door.
Wedging a fire door open is the same violation as removing the closer. A rated door only performs if it is closed when the fire starts. The bin propping it open on a July afternoon is a code issue and, more to the point, it defeats the entire purpose of having paid for a rated assembly.
What A Rated Fire Door Actually Involves
If your back door is a labelled fire door, the label states a rating in minutes and that rating covers the whole assembly: the door, the frame, the hinges, the closer and the lock.
That means fitting a non-rated hinge because it was what the supplier had, or a hardware-store deadbolt because it was cheaper, voids the rating on the entire door. So does drilling it for something it was not prepared for.
Inspectors know exactly where to look. The label, the closer, the gap around the door, and whether anything has been added that should not be there.
What You Can Have Instead
Everything a business actually wants from a secure back door is achievable within the code. Nobody is asking you to leave the building open.
- An exit device with an outside keyed cylinder. Locked from outside, always free from inside. This is the standard answer and it is what belongs on nearly every commercial back door.
- An alarmed exit device. The door still opens freely in one motion, and it sounds a local alarm when it does. This solves the “staff keep using the fire exit” problem properly.
- Delayed egress, where genuinely justified. Permitted only under specific conditions with signage, alarm interfacing and a defined release time. It is a real solution for stock rooms, not a workaround.
- Access control on the outside only. Card or code to get in, free push to get out. Full control over who enters and no compromise on egress.
- A door position alarm. Tells you when the back door has been opened or propped, without touching how it operates.
Why This Matters Beyond Inspections
Three reasons, in ascending order of seriousness.
An inspection finding is inconvenient and usually comes with a deadline. An insurance claim after an incident is worse: if a non-compliant arrangement contributed, the conversation with your insurer becomes difficult in ways that make the cost of a proper exit device look trivial.
And the third is the actual one. These rules exist because of specific fires in which people died at doors that had been secured in exactly these ways by owners who were not careless and were not cutting corners. They were trying to protect their premises, the same as you.
If You Already Have One Of These
Tell us. Nobody is in trouble for having inherited an arrangement from a previous tenant or a well-meaning contractor. Replacing a chained back door with a proper exit device is a routine, same-day job, and it is considerably cheaper than the alternative in every scenario where it matters.
See commercial locksmith services, or call 647-330-7919 and describe what is on your door now.
Locked Out? We Answer The Phone.
24/7 mobile locksmith service across Whitby, Brooklin and Durham Region. Real prices on the phone, a marked vehicle at your door, and a written invoice when we are done.
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