This comprehensive publication provides a convenient
reference for regulations in chapters 1 through 11 of the 2018 International
Residential Code® (IRC®).

The commentary series is presented in an easy-to-understand
format. Every chapter begins with "General Comments" and
"Purpose" sections followed by code and commentary to subsequent
sections, tables and figures. This in-depth publication focuses on providing
the full meaning and implications of the 2021 IRC®.