The Ontario Building Code | Support Over Openings
9.37.3.1. support Over openings="http://thehandyforce.com/windows/" title ="Window installer in Toronto">openings
(1) Logs placed in vertical position shall be supported over window and door openings="http://thehandyforce.com/windows/" title ="Window installer in Toronto">openings by lintels meeting the requirements of Tables A-12 to A-16.
In Plain Language
Support over openings in a log wall, such as windows and doors, must meet the requirements set out in this article, since log construction settles differently than conventional framing around these openings.
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.