ANSI / WMA 100
World Millwork Alliance is a standards-developing organization accredited by the American National Standards Institute (ANSI). In 2009, we developed the WMA 100, a proactive and voluntary performance standard for side-hinged exterior doors (SHEDs).
What is the ANSI/WMA 100 Standard for Side-Hinged Exterior Doors?
- Approved as an American National Standard by ANSI
- Uses the ASTM E330 test method to obtain a full system design pressure rating
- Defines methods for qualifying door system components for substitution in the rated system
- Outlines slab stiffness testing procedures for use in determining component substitution
How Does the ANSI/WMA 100 Benefit My Business?
- It is fair, accurate, and reliable
- It can be used to meet testing and labeling wind load requirements in states that have adopted the 2015 and later editions of the International Residential Code (IRC)
- It provides procedures for component qualification and substitution, which makes it cost-effective for door pre-hangers as it limits the amount of testing required
As an ANSI accredited Standards Developing Organization (SDO), WMA maintains the standard pursuant to ANSI requirements as reflected in the Procedures for the Development, Revision, Reaffirmation, Withdrawal, and Discontinuance of WMA Standards. To request a copy of the WMA 100, please email your request to mail@worldmillworkalliance.com.
WMA 100 Technical Interpretations: A Quick Guide
A technical interpretation is defined as a written explanation of the meaning of a specific provision of the standard as determined by either the WMA Interpretations Policy Committee (IPC) or by the WMA Director of Codes and Standards, in response to a written request. The requester shall decide whether to request an ‘official’ or ‘unofficial’ interpretation. See our Quick Guide below.
Unofficial (Personal)
- Written request sent to mail@worldmillworkalliance.com with the subject line: “Request for Unofficial Interpretation”
- Include requester phone number and email
- Result determined by WMA’s Director of Codes and Standards
- Response time: 10 days
Official
- Submit written request via the
Interpretations Request Form - Requests must meet the requirements of Section 1 of the Standards Interpretations Procedures
- Result determined by WMA’s Interpretations Policy Committee (IPC) and posted to the WMA website
- Response time: 30-45 days
Below are Interpretations issued by WMA’s Interpretations Policy Committee (IPC).
Please note that an interpretation shall not be used to change the content of the standard. Requests that are proposals for changes to the standard will be referred to WMA’s Industry Standards and Certification Committee (ISCC) for consideration in future standard revision cycles.
2017 Interpretations
–IR-2017-01
–IR-2017-02
