This standard covers the manufacturing, qualification, and quality assurance requirements for cross-laminated timber (CLT).
Download ANSI/APA PRG 320-2018: Standard for Performance-Rated Cross-Laminated Timber, the current version of the approved standard.
Download ANSI/APA PRG 320-2017: Standard for Performance-Rated Cross-Laminated Timber, the 2017 version of the approved standard.
ANSI/APA PRG 320 Committee Members
View the current ANSI/APA PRG 320 Membership Roster.
To apply for membership, download the PRG 320 Committee Application Form.
There is no active ballot available to download at this time.
December 3, 2018
PRG 320 interpretation regarding adhesives, temperature and assembly time
Final Ballot for ANSI/APA PRG-320-2018