Fire-Rated Door — Legal Basement Suite

Fire-rated door installation for a legal basement suite is one of the most compliance-critical door jobs a contractor can take on. The City of Calgary requires a fire-rated separation between a legal suite and the main dwelling — and the door in that separation has to be installed correctly to satisfy both building permits and insurance requirements.

Before

After

Why Fire-Rated Doors Matter

A fire-rated door isn't just a building code checkbox — it's the barrier that gives occupants time to evacuate in the event of a fire. The door, the frame, and the installation itself all contribute to the rated performance. The City of Calgary's requirements for legal basement suites specify a minimum fire separation including a fire-rated door assembly with a self-closing mechanism.

The Installation

This project involved a double door configuration — two slabs within a single frame opening. The assembly was installed with the correct fire-rated frame, appropriate hardware, and the door closer required by code to ensure the door self-closes and latches without manual operation. Clearances, latch alignment, self-closing function, and frame integrity were all verified before the job was signed off.

Fire-Rated Door Installation in Calgary

TheDoorPro installs fire-rated doors for legal basement suites, mechanical rooms, and commercial applications across Calgary and surrounding communities. If you're developing a legal suite or bringing an existing space up to code, the fire separation door is a critical component that has to be done right. Request a free estimate and we'll assess your opening and ensure the installation meets all applicable requirements.