DRFT 1006 - Architectural Plan Interpretation 1 - Recommended
Ontario Building Code 2012This link opens in a new windowOnline edition of the Ontario Building Code.
The Government of Ontario will provide a free digital [PDF format] copy of the Ontario Building Code Compendium for non-commercial use. Follow the instructions at Request a digital copy of the 2012 Building Code Compendium to request a copy.
Note: Came into effect January 2014. Most of Ontario's revised Building Code takes effect Jan. 1, 2014. For more detail on the transition period, see section "Section 4.1. Transition Rule" at the end of the Code.
*If you are experiencing problems logging in, clear the cache on your browser*
Renovator's technical guide by 
Canadian wood-frame house construction by 
Understanding construction drawings for housing and small buildings by 
Ontario Building Code 2012 - Compendium
Looseleaf for Buildings Across Time by 