n.b.: The 2015 International Building Code removed the requirement for at least one room with a minimum 120sf. Rooms must now have a minimum of 70sf. http://med

n.b.: The 2015 International Building Code removed the requirement for at least one room with a minimum 120sf. Rooms must now have a minimum of 70sf. http://media.iccsafe.org/news/eNews/2014v11n20/2015_irc_sigchanges_p46-7.pdf http://media.iccsafe.org/news/eNews/2014v11n20/2015_irc_sigc... Ceiling heights must be at least 7'6". https://codes.iccsafe.org/content/IBC2015/chapter-12-interior-environment?site_type=public https://codes.iccsafe.org/content/IBC2015/chapter-12-interio...