Who We Are
HMMA is an association and community of specialized manufacturers in the industry dedicated to showing the value of hollow metal doors and frames. We’re committed to not only moving the industry forward, but to also providing the knowledge for building projects to choose the right product with confidence.
Our Mission at HMMA:
At HMMA we develop standards, conduct product performance testing, and deliver education to promote the use of hollow metal doors and frames. We work to move the hollow metal industry forward by being a trusted source of information.
HMMA Sets the Standard for Hollow Metal Specs
Our community of industry experts is here to help set up your project for success by providing best-in-class specifications to follow. The specs and technical publications below include our vast knowledge of building codes, that are backed by manufacturing expertise, and highlight the benefits of hollow metal doors and frames.
Technical Publications
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Guide Specifications For Forced Entry/Bullet Resistant (FE/BR) Security Hollow Metal Doors and Frames
- 2024
- HMMA 862-23
FE/BR hollow metal construction provides the architect with a great deal of freedom in the design of hollow metal products. The architect can also take advantage of the expertise acquired by those hollow metal manufacturers experienced in FE/BR security work. Over the years NAAMM/HMMA manufacturers have developed advanced methods and equipment enabling them to efficiently manufacture hollow metal assemblies, which address today’s difficult FE/BR security applications. These applications include working with the latest in burglary and bullet resisting hardware and security glazing. A number of these manufacturers offer proven economical and functional designs of FE/BR security hollow metal systems.
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Fire Protection vs Fire Resistant Rating
- 2022
- 820 TN-04-21
New Code requirements included in the IBC, 2009 edition state that all Transom, Sidelight and Window Frames with a greater than 45-minute fire rating, comply with ASTM E119-07 and ANSI/UL263.
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Tolerances and Clearances for Commercial Hollow Metal Doors and Frames
- 2019
- HMMA 841-13 (R2019)
Tolerances and Clearances for Commercial Hollow Metal Doors and Frames
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well. This standard was reaffirmed in 2019.
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Guide Specifications For Hollow Metal Doors & Frames
- 2018
- HMMA 860-18
(HMMA 860-13)
These specifications have been prepared in accordance with the CSI recommended format with Part 1 - General, Part 2 - Product and Part 3 - Execution. Guide specifications are intended to be used as the basis for developing job specifications and must be edited to fit specific job requirements.
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Guide Specifications For Receipt, Storage and Installation of Hollow Metal Doors and Frames
- 2018
- HMMA 840-17
(HMMA 840-17)
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Guide Specifications for Stainless Steel Hollow Metal Doors and Frames
- 2018
- HMMA 866-12
(HMMA 866-12)
These specifications have been prepared in accordance with the CSI recommended format with Part 1 - General, Part 2 - Product and Part 3 - Execution. Guide specifications are intended to be used as the basis for developing job specifications and must be edited to fit specific job requirements.
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Glossary of Terms for Hollow Metal Doors and Frames
- 2018
- HMMA 801-12
Glossary of Terms for Hollow Metal Doors and Frames
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Electrified Hardware Preparations
- 2018
- HMMA 830 TN01-18
Electrified Hardware Preparations HMMA 830 TN01-18
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Thermal Bow
- 2017
- HMMA 810 TN02-17
Thermal Bow HMMA 810 TN02-17
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Guide Specifications for Commercial Laminated Core Hollow Metal Doors and Frames
- 2016
- HMMA 867-16
(HMMA 867-16)
These specifications have been prepared in accordance with the CSI recommended format with Part 1 - General, Part 2 - Product and Part 3 - Execution. Guide specifications are intended to be used as the basis for developing job specifications and must be edited to fit specific job requirements.
This publication has been discontinued. Please see HMMA 860-18 for relevant information.
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Guide Specifications For Commercial Hollow Metal Doors & Frames
- 2014
- HMMA 861-14
(HMMA 861-00)
These specifications have been prepared in accordance with the CSI recommended format with Part 1 - General, Part 2 - Product and Part 3 - Execution. Guide specifications are intended to be used as the basis for developing job specifications and must be edited to fit specific job requirements.
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Guide Specifications for Detention Security Hollow Metal Doors and Frames
- 2014
- HMMA 863-14
Guide Specifications for Detention Security Hollow Metal Doors and Frames
These specifications have been prepared in accordance with the CSI recommended format with Part 1 - General, Part 2 - Product and Part 3 - Execution. Guide specifications are intended to be used as the basis for developing job specifications and must be edited to fit specific job requirements.
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Fire Rated Hollow Metal Doors & Frames
- 2014
- HMMA 850-14
(HMMA 850-14)
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Guide Specifications For Sound Control Hollow Metal Doors and Frame Assemblies
- 2013
- HMMA 865-13
(HMMA 865-13)
These specifications have been prepared in accordance with the CSI recommended format with Part 1 - General, Part 2 - Product and Part 3 - Execution. Guide specifications are intended to be used as the basis for developing job specifications and must be edited to fit specific job requirements.
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Quality Control Template for Hollow Metal Doors and Frames Manufacturers
- 2012
- HMMA 804-12
Quality Control Template for Hollow Metal Doors and Frames Manufacturers
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Recommended Selection and Usage Guide for Hollow Metal Doors and Frames
- 2012
- HMMA 805-12
Recommended Selection and Usage Guide for Hollow Metal Doors and Frames
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Hardware Locations for Hollow Metal Doors and Frames
- 2011
- HMMA 831-11
Recommended Hardware Locations for Hollow Metal Doors and Frames
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Maintenance of Installed Hollow Metal Products
- 2010
- HMMA 840 TN02-10
Maintenance of Installed Hollow Metal Products HMMA 840 TN02-10
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Hollow Metal Doors
- 2009
- HMMA 810-09
Hollow Metal Doors
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Steel Tables
- 2008
- HMMA 803-08
Steel Tables
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Hollow Metal Frames
- 2008
- HMMA 820-08
Hollow Metal Frames
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Manufacturing of Hollow Metal Doors and Frames
- 2007
- HMMA 802-07
Manufacturing of Hollow Metal Doors and Frames
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Guidelines for Glazing Hollow Metal Transoms, Sidelights and Windows
- 2007
- HMMA 820 TN03-07
Guidelines for Glazing Hollow Metal Transoms, Sidelights and Windows HMMA 820-TN03-07
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Painting Hollow Metal Products
- 2007
- HMMA 840 TN01-07
Painting Hollow Metal Products HMMA 840 TN01-07
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Technical Summary
- 2006
- HMMA 890-06
Technical Summary HMMA 890-06
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Defining Undercuts
- 2003
- HMMA 810 TN01-03
Defining Undercuts HMMA 810 TN01-03
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Grouting Hollow Metal Frames
- 2003
- HMMA 820 TN01-03
Grouting Hollow Metal Frames HMMA 820 TN01-03
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Continuously Welded Frames
- 2003
- HMMA 820 TN02-03
Continuously Welded Frames HMMA 820 TN02-03
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Hardware Selection for Hollow Metal Doors and Frames
- 2002
- HMMA 830-02
Hardware Selection for Hollow Metal Doors and Frames
HMMA's Standards provide authoritative, unbiased information regarding the manufacture, design and use of hollow metal products. The chief objective of our standards is the promotion of careful workmanship and the use of good design practices and quality materials. The establishment of appropriate standards is helpful not only to the architect and manufacturer, but to the contractor and building owner as well.
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Introduction to Custom Hollow Metal
- 1996
- HMMA 800-96
HMMA members
HMMA's respected member firms are leaders in their field, representing a diversity of specialty areas, and are strategically located throughout the United States, Canada, and abroad.
