(1) Bedroom spaces in combination with other spaces in dwelling units shall have an area not less than 4.2 m². Sq (m): Sq (f): = Article 9.5.7.3 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. Similar articles Maximum number of outlets per circuit (see Appendix B) Receptacles for dwelling units (see Appendices B and G) Wall Studs Support of Walls