Div. B › Part 9 › 9.10 › 9.10.13 — Doors, Dampers and Other Closures in Fire Separations

9.10.13.2 — Solid Core Wood Door as a Closure

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(1) A 45 mm thick solid core wood door is permitted to be used where a minimum fire-protection rating of 20 min is permitted or between a public corridor and a suite provided the door conforms to CAN/ULC-S113, “Wood Core Doors Meeting the Performance Required by CAN/ULC-S104 for Twenty Minute Fire Rated Closure Assemblies”.

(2) Doors described in Sentence (1) shall have not more than a 6 mm clearance beneath and not more than 3 mm at the sides and top.

OBC Definitions

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closure

means a device or assembly for closing an opening through a fire separation or an exterior wall, such as a door, a shutter, a damper, wired glass and glass block, and includes all components such as hardware, closing devices, frames and anchors.

fire-protection rating

means the time in minutes or hours that a closure will withstand the passage of flame when exposed to fire under specified conditions of test and performance criteria, or as otherwise prescribed in this Code.

public corridor

means a corridor that provides access to exit from more than one suite.

suite

means a single room or series of rooms of complementary use, operated under a single tenancy, and includes, (a)dwelling units, (b)individual guest rooms in motels, hotels, boarding houses, rooming houses and dormitories, and (c)individual stores and individual or complementary rooms for business and personal services occupancies.

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