This standard covers the manufacturing, qualification, and quality assurance requirements for cross-laminated timber (CLT).

Download ANSI/APA PRG 320-2012: Standard for Performance-Rated Cross-Laminated Timber, the current version of the approved standard.

Download ANSI/APA PRG 320-2011: Standard for Performance-Rated Cross-Laminated Timber, the previous version of the approved standard, which was adopted by the 2015 International Building Code (IBC). The 2011 edition of ANSI/APA PRG 320-2011 is no longer maintained as an American National Standard and has been superseded by the 2012 edition as an American National Standard. The Secretariat can be contacted for additional details.

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.

ANSI/APA PRG 320-2012 — Archival Information

Ballot 2

• Summary of Comments and Proposed Responses, Ballot 2
• Ballot 2 Results
• Ballot Form 2

Ballot 1

• Summary of Comments and Proposed Responses, Ballot 1
• Ballot Form 1

Meetings

January 26, 2012, Conference Call

• Meeting Agenda
• Meeting Minutes
• Change Proposals: ANSI/APA PRG 320 Revision List

ANSI/APA PRG 320-2011 — Archival Information

Ballot 2

• Ballot 2 Summary of Comments and Proposed Responses
• Ballot 2 Results
• Ballot Form 2
• Redline Copy, Draft Standard

Ballot 1

• Ballot 1 Summary of Comments and Proposed Responses
• Ballot Form 1
• Draft Standard
• Redline Copy, Draft Standard

Meetings

August 25, 2011, Webinar

• Meeting Agenda
• Meeting Minutes

May 19, 2011, Webinar

• Meeting Agenda
• Meeting Minutes
• 90% Draft Standard

March 11, 2011, Webinar

• Meeting Agenda
• Meeting Minutes
• 80% Draft Standard

January 7, 2011, Webinar

• Meeting Agenda
• Meeting Minutes
• Meeting Reference Materials
• 75% Draft Standard

September 30, 2010, Webinar

• Meeting Agenda
• Meeting Minutes
• Meeting Presentation
• Pre-Draft Standard

June 29, 2010, Webinar

• Meeting Agenda
• Meeting Minutes
• Meeting Reference Materials

March 11, 2010, at APA Headquarters in Tacoma, Washington

• Meeting Agenda
• Meeting Minutes
• Meeting Reference Materials