The ANSI/AWC 2021 Special Design Provisions for Wind and Seismic (SDPWS) provides criteria for proportioning, designing, and detailing engineered wood systems, members, and connections in lateral force resisting systems. Engineered design of wood structures to resist wind or seismic forces is either by allowable stress design (ASD) or load and resistance factor design (LRFD). Nominal shear capacities of diaphragms and shear walls are provided for reference assemblies.

See updates and errata for the 2021 SDPWS.

The 2021 SDPWS Commentary is available as part of a package in the AWC store.