Mike Gilboy is the President of the Hollow Metal Manufacturers Association (HMMA). HMMA is an association and community of specialized manufacturers in the industry dedicated to showing the value of hollow metal doors and frames.

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.

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 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.