The Ontario Building Code | Door Swing for Service Rooms
3.6.2.6. door Swing for service Rooms
(1) A swing-type door from a service roomcontaining a boiler or incinerator shall swing outward from the room, except that the door shall swing inward if the door opens onto a corridor or any room used for an assembly occupancy.
In Plain Language
A swing-type door from a boiler or incinerator room must swing outward from the room, except it must swing inward instead if it opens onto a corridor or assembly-occupancy room, prioritizing unobstructed egress in busier adjoining spaces.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.