Hollow Metal Door and Transom Frames

Yes, our hollow metal frames and transom assemblies are available with UL fire ratings that comply with NAAMM and HMMA industry specifications. These certified systems are engineered for life safety and fire-rated egress applications in commercial structures, providing dependable containment and code compliance across standard entrances, glazed assemblies, and double egress configurations.

Frames can be ordered as fully welded units or cut-and-notch knockdown configurations. Fully welded assemblies arrive pre-joined for immediate placement in masonry or commercial drywall rough openings, while knockdown options allow flexible assembly and efficient transport on job sites. Both construction methods maintain strict dimensional tolerances across standard three-sided frames, sidelite units, and transom combinations.

Yes, custom frame profiles can be engineered to support unique architectural designs beyond conventional rectangular openings. Available configurations include arched, radius, and segmented transom and frame profiles. Additionally, options such as kerfed frames, lead-lined radiation shielding, and customized jamb depths are available to align with specific commercial or healthcare project architectural requirements.

Standard frame orders typically feature lead times of five to seven business days. For urgent project demands, expedited quick-ship programs are available with timelines ranging from one to five business days, and same-day delivery is offered on select stock configurations to help contractors resolve unexpected door schedule changes promptly.

Yes, engineered openings can be specified as glazed or paneled assemblies depending on functional and lighting requirements. Transom frames and sidelite units allow natural light transmission with fire-rated glass configurations, or solid metal paneled sections when privacy and acoustic containment are needed. Both options comply with applicable UL fire and safety standards.

Hollow metal door and transom frame systems are fabricated using durable steel options, including stainless steel and A60 galvannealed materials. A60 galvannealed steel provides corrosion resistance suitable for primed and painted commercial finishes, while stainless steel options offer enhanced durability and moisture protection in demanding healthcare, industrial, or institutional building environments.