The Ontario Building Code | Access Way to Services
9.18.4.1. Access Way to services
(1) Where equipment requiring service such as plumbing cleanouts, traps and burners is located in crawl spaces, an access way with a height and width of not less than 600 mm shall be provided from the access door to the equipment and for a distance of 900 mm on the side or sides of the equipment to be serviced.
9.18.5. drainage
In Plain Language
An access way to services located in a crawl space is required as set out in this article, letting plumbing, wiring, or ductwork in the space be reached for maintenance.
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.