Representing Manufacturers of Engineered Floor, Wall, and Roof Structural Components
Inspection & Quality Assurance Requirements for Wood Trusses per IBC/IRC
Research Report No.:
August 25, 2015
August 27, 2015
There is confusion within the building construction industry with regard to the requirements for inspections and quality assurance of trusses. While the building codes and the referenced standards address these requirements, they can be difficult to understand. There are several layers of inspection requirements in the code which are located in varying sections of the code. This can make understanding how the requirements apply to a specific product difficult to understand. Also, some confusion stems from an interpretation of how in‑plant manufacturing quality control (QC) relates to fabricator approval (IBCSection 1704.2.5) and the third party inspection process. This report will focus on the inspection and quality assurance requirements for Metal Plate Connected Wood Trusses (MPCWT) as defined in the building codes and their referenced standard, ANSI/TPI 1.