OSWA - Engineered Wood Products
Welcome to OSWA’s dedicated page to Structural Lumber Products, commonly referred to as Engineered Wood Products (EWP).
OSWA is committed to educating Building Officials and Design Professionals by providing general information and educational tools to assist with permit submission and specification of structural lumber products.
- Links and references below are intended for general information purposes only.
- Links to third party websites are provided for convenience and general information purposes only.
APA video links
https://www.apawood.org/back-to-basics
APA General Information Details links
https://www.apawood.org/publication-search?q=
Manufacturers / Product Lines updates
Review Form for Roof Truss / Engineered Floor System / LVLs for Part 9 Residential Buildings
NBCC Fire Rated Assemblies
Part 9, Tables A-9.10.3.1.B for Floors, Ceilings and Roofs
Acoustic
Part 5 and 9, Tables 9.10.31.A and 9.10.31.B
Tables 9.11.1.4.A to 9.111.1.4D
OSWA web site EWP page links
Designer Roles and Responsibilities - Ontario
Residential EWP Installation Details
For more detailed information (fire assemblies, etc.) on specific structural products see OSWA member website links below.
OSWA EWP Member Links
https://www.oswa.ca/find/
Product Evaluations, link to CCMC
https://nrc.canada.ca/en