The use of cross-laminated timber (CLT) as structural floor and roof panels has seen incredible growth in the US over the past decade. However, its use as part of a seismic and wind force-resisting system—either as a diaphragm or shear wall—has only recently been recognized in design standards. This has resulted in designing CLT diaphragms through alternative means or using a recognized structural system, such as nailed wood structural panels or concrete, as the diaphragm. This webinar will introduce new provisions for CLT diaphragm design, in the American Wood Council’s 2021 Special Design Provisions for Wind and Seismic (SDPWS), which is the code-referenced standard providing guidance on CLT diaphragms. Following a discussion of the new SDPWS provisions, CLT diaphragm detailing options and design examples will be presented in order to apply practical design techniques and discuss structural detailing challenges and solutions.

• Course will award 1.5 hour of continuing education
• This course is Diamond Review approved in 49 states. New York does not accept hours from recordings.