The Ontario Building Code | Site Assembled and Factory-Built Buildings
9.1.1.9. Site Assembled and Factory-Built buildings
(1) Except as provided in Sentence (2), a manufactured building intended for residential occupancy is deemed to comply with this Code if it is designed and constructed in compliance with,
(a) CSA Z240.2.1, "Structural Requirements for Manufactured Homes", if the building is constructed in sections not wider than 4.88 m, or
(b) CSA A277, "Procedures for Factory Certification of Buildings".
(2) The requirements of this Code shall apply to,
(a) building components designed and constructed outside the place of manufacture, and
(b) site installation of such buildings.
In Plain Language
Site-assembled buildings and factory-built buildings must meet the supplementary requirements referenced in this article, addressing how these non-traditional construction methods still meet the Code's safety intent.
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.