Wood construction offers distinct design options typically not found in a single structural material. It is inexpensive, readily available, easy to work with, strong and adaptable. The eco-nomic, environmental and energy efficiency advantages account for more buildings being con-structed of wood than any other structural material. The intent of this book is to summarize the allowable wood use in buildings in accordance with the International Code Council (ICC) 2018 International Building Code® (IBC®). Emphasis will be placed on the design flexibilities permitted for wood in commercial construction. This is not meant to be a replacement for the IBC and does not encompass all of the design options in the IBC. The IBC, along with any local amendments, should always be consulted for applicable spe-cific requirements related to designs and site conditions.