Lumber Substitutions in Trusses Marvin Strzyzewski, P.E. Chapter 3 of ANSI/TPI 1-2022, the National Design Standard for Metal Plate Connected Wood Trusses, provides the component manufacturer with the Quality Criteria they must follow to ensure the metal plate connected wood trusses (MPCWT) they build meet the design assumptions. Section 3.4.2 Lumber... Read More March 2026 Issue #18320 Page 130