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, dowload the PRG 320 Committee Application Form.
Active Ballot
There is no active ballot available to download at this time.
Archival Information
Final Ballot
October 2017
Ballot 1
JUNE 2017