News

NAAMM news and updates keep members informed of issues related to topics of mutual interest to manufacturers.

ANSI/NAAMM Pending Standards: June 20, 2025; The following ANSI/NAAMM standard is currently being considered for revision or has a revision in progress: ANSI/NAAMM HMMA 866, "Guide Specifications for Stainless Steel Hollow Metal Doors and Frames" The pending revision will be announced in the AN…
ANSI/NAAMM Pending Standards: June 20, 2025; The following ANSI/NAAMM standard is currently being considered for revision or has a revision in progress: ANSI/NAAMM HMMA 841, "Tolerances and Clearances for Commercial Hollow Metal Doors and Frames" The pending revision will be announced in the AN…
2024 HMMA Fall Meeting Recap: October 21, 2024; A collage of photos from the 2024 HMMA Fall Meeting. At the 2024 HMMA Annual Fall Meeting, we saw 24 HMMA members from 20 different companies attend the activities on the Magnificent Mile in Chicago. If you weren’t able to make it, we created t…
ANSI/NAAMM Pending Standards: October 15, 2024; The following ANSI/NAAMM standards are currently being considered for revision or have a revision in progress: ANSI/NAAMM MBG 533-21, " Welding Standards for Fabrication of Steel, Stainless Steel and Aluminum Bar Grating " ANSI/NAAMM MBG 534-24, " Me…
Why More Architects Are Choosing Steel Doors: October 7, 2024; If you look at recent commercial building projects like schools, hospitals, office buildings, or government facilities, you’ll notice more of them are using steel doors and frames. Why is this the case? For starters, steel door assemblies are v…
What You Need to Know About Sound Transmission Control Doors: July 30, 2024; Today, more commercial building projects want effective sound control incorporated in their design and construction. By lowering noise transmission throughout a space, the comfort, privacy, and acoustics are all improved. Door assemblies that limit l…
The Importance of Joint Testing: July 12, 2024; HMMA’s mission is to move the hollow metal industry forward by being a trusted source of information. Backed with the support of industry experts and member companies, HMMA delivers test results that stakeholders can have confidence in. Take a …
Press Release on NAAMM's Statement to Industry Regarding Public Comment to Proposed Revisions to ANSI/NAAMM HMMA 863, Guide Specifications for Detention Security Hollow Metal Doors and Frames: June 10, 2024; The Press Release on NAAMM's Statement to Industry Regarding Public Comment on the proposed revisions to ANSI/NAAMM HMMA 863, Guide Specifications for Detention Security Hollow Metal Doors and Frames, can be viewed here.
HMMA Spring Meeting Recap: June 6, 2024; Key Actionable Topics Covered! Everyone at HMMA is proud to host another unforgettable member meeting. On the beautiful sands of Florida’s St. Pete Beach, 26 HMMA members met and discussed: HMMA 863-24 Guide Specifications for Detention Securit…
Press Release on NAAMM's Statement to Industry Regarding Public Comment to Proposed Revisions to ANSI/NAAMM HMMA 801, Glossary of Terms for Hollow Metal Doors and Frames: May 28, 2024; The Press Release on NAAMM's Statement to Industry Regarding Public Comment on the proposed revisions to ANSI/NAAMM HMMA 801, Glossary of Terms for Hollow Metal Doors and Frames, can be viewed here.
ANSI/NAAMM Pending Standards: May 13, 2024; The following ANSI/NAAMM standard is currently being considered for revision or has a revision in progress: ANSI/NAAMM HMMA 863, "Guide Specifications for Detention Security Hollow Metal Doors and Frames" The pending revision was announced in the ANS…
Expanded Standard: What You Need to Know: May 8, 2024; When it comes to buying expanded metal products, how do you know you are getting what you pay for? If you bought a bag of sugar and got home to discover it was half filled with sawdust, you’d demand your money back and probably report the store…
Press Release on NAAMM's Statement to Industry Regarding Public Comment to Proposed Revisions to ANSI/NAAMM MBG 534, Metal Bar Grating Engineering Design Manual: March 6, 2024; The Press Release on NAAMM's Statement to Industry Regarding Public Comment on the proposed revisions to ANSI/NAAMM MBG 534, Metal Bar Grating Engineering Design Manual, can be viewed here.
HMMA Fall Meeting Recap: October 17, 2023
The Top HMMA Specifications: September 1, 2023; At HMMA, we’re hollow metal industry experts. A large part of our mission is creating specifications and standards for professionals that can be used for a wide variety of commercial building projects. Every technical publication we create is b…
Hollow Metal Doors and Frames Fire Rating Checklist: July 27, 2023; Fire-rated hollow metal doors and frames provide immense value to commercial building projects since they help slow the spread of a fire. It’s a large part of why building codes across the country require fire-rated doors. While hollow metal of…
3 Benefits of Custom Commercial Hollow Metal Doors: July 25, 2023; When you’re in the planning stage of a commercial building project, it’s common to have the need for custom entryways and doors. Whether it’s a hospital, school, or another type of building, commercial projects don’t all follo…
Fire Rating of Steel Doors Compared to Other Materials: July 18, 2023; Fire-rated assembly doors play a vital role for commercial buildings. These doors not only save lives by slowing down the spread of smoke and fire, but also provide a safer way for people to exit the building. That’s why the choice of material …
Why You Should Use Steel Exterior Doors on Your Projects: May 16, 2023; A variety of commercial building projects, entryways and exterior doors need special consideration when it comes to doors. You need to factor in how they function, the level of security that’s required, how each door will hold up against the el…
The Difference Between Fiberglass and Steel Doors: April 21, 2023; For a variety of commercial building projects, there’s a key decision that needs to be made about what type of material for doors and entryways. At first glance, materials such as fiberglass and steel look similar when they’re installed. …
An Inside Look at HMMA's Specs: December 13, 2022; Across all types of residential and commercial building projects, specifications are the guiding force behind the materials that are chosen. Since companies, organization, and governing bodies create specs for hollow metal doors and frames, you might…
The Versatility of Steel Doors and Frames for School Building Projects: December 13, 2022; For school building projects, versatility is often the name of the game when it comes to the materials used. If you visit a school near you, chances are you’ll find steel doors and frames being used across the campus. From band rooms to exterio…
Steel Doors and Frames 101: October 14, 2022; While there are a variety of building materials that are used for entryways, we’re here to give you a comprehensive look at steel. You might already know that steel doors and frames are known for being extremely durable and can stand up to all …
HMMA Q3 Newsletter: October 5, 2022; Comparing Steel vs Wood Doors and Frames
HMMA Q2 Newsletter: October 5, 2022; Detention Hollow Metal Exceeds the Bar
When Should Your Project Use Steel Doors and Frames?: August 30, 2022; In the planning stages of many building projects, there comes a point where you must select what types of materials are going to be used. Key aspects of the project require you to examine specifications, draw on experience all while thinking about ho…
Common Misconceptions About Steel Doors and Frames: August 4, 2022; Common Misconceptions About Steel Doors While steel doors and frames are known for their durability, like many other building products, they’re not immune to misconceptions coming about. As a longstanding not for profit organization and leading…
Comparing Steel vs Wood Doors and Frames: July 8, 2022; The Key Differences Between Steel and Wood Doors Is Steel Really Safer than Wood? For decades, HMMA and its member companies have been trusted sources of information for hollow metal doors and frames. A large part of our goal as an organization is to…
HMMA Q2 2022 Newsletter: May 23, 2022; DETENTION HOLLOW METAL EXCEEDS THE BAR
HMMA Q1 2022 Newsletter: February 1, 2022; HMMA-830-02 Hardware Selection for Hollow Metal Doors and Frames The hardware used not only determines how well a door functions, but is also an important factor in the working life of the opening. Among the many benefits of custom hollow metal is th…
HMMA Q4 2021 Newsletter: November 24, 2021; The term "hollow metal work" refers to many of those components of building construction that are made of cold formed sheet metal. With the exception of single family residences, there are relatively few buildings in which hollow metal work is not us…
HMMA Q3 2021 Newsletter: August 2, 2021; HMMA-810 TN02-17 Thermal Bow Design professionals, building owners, and project managers need to be aware of a potential door condition known as “Thermal Bow”. “Thermal Bow” is primarily the result of the sun’s rays heat…
HMMA Q2 2021 Newsletter: May 19, 2021; HMMA-820 TN03-07 Guidelines for Glazing of Hollow Metal Transoms, Sidelights and Windows Hollow metal transoms, sidelights and windows are an excellent choice at exterior locations. Proper application of sealing methods commonly used with other windo…
Form and Function - Expanded metal offers extensive options for architects and designers: May 3, 2021; Selecting building materials can be a daunting task with so many options available to designers today. When considering versatility, cost and design impact, expanded metal offers some of the most extensive options in both form and function. Read Full…
HMMA Q1 2021 Newsletter: March 22, 2021; Continuously Welded Frames There are always multiple ways to say something and communicate 90% non-verbally. When it comes to the construction of hollow metal, the words used to specify the type of frame weld is very important, but the challenge is d…
Perforated and Expanded Metal Updates: April 21, 2018; Nine things you should know about these building components...
Updated Standard Released: HMMA 850-14: November 16, 2016; NEWS RELEASE:Updated Standard Released: HMMA 850-14"Fire-Protection and Smoke Control Rated Hollow Metal Door and Frame Products" This updated standard is a detailed overview of the portfolio of fire rated products available through HMMA member compa…
MBG Testing Update: April 27, 2016; The MBG division has completed tests showing that their ANSI/NAAMM MBG treads meet the loading requirements of OSHA 29CFR 1910.24 (c). Treads tested included steel and aluminum treads with serrated or non-serrated edges in a range of lengths. The tes…
EMMA Testing Update: April 27, 2016; The EMMA division has completed tests showing the effectiveness of expanded metal used as a screen for openings. For details of the three tests, see the links below. The range of values for SHGC (Solar Heat Gain Coefficient) is from 0 to 1. A window …
ANSI/NAAMM Pending Standards: April 27, 2016; The following ANSI/NAAMM standards are currently being considered for revision or have a revision in progress: ANSI/NAAMM MBG 531 ANSI/NAAMM AMP FP 1001 The following ANSI/NAAMM standards under revision or proposed for reaffirmation are available for…