UL Fire-Rated certified

UL Fire-Rated

NAAMM HMMA Compliant certified

NAAMM HMMA Compliant

Fire Rated Windows and Doors

Explore UL fire-rated hollow metal doors, frames, and engineered window assemblies designed for commercial life safety egress. Available in 18 to 12 gauge steel with welded or knock-down configurations, these assemblies accommodate sidelites, transoms, and specialty cores, meeting NAAMM/HMMA specifications for demanding structural and fire safety building applications.

Hollow Metal Door Frames (Welded & Cut-and-Notch/KD)
Engineered Openings (Sidelite, Transom & Window Frame Assemblies)
UL Fire-Rated Hollow Metal Doors & Frames

Our Range of Products

Hollow Metal Door Frames (Welded & Cut-and-Notch/KD)

Hollow Metal Door Frames (Welded & Cut-and-Notch/KD)

  • UL fire-rated label for life safety code
  • 12 to 16 gauge steel construction options
  • Quick-ship in 5-7 business days
Engineered Openings (Sidelite, Transom & Window Frame Assemblies)

Engineered Openings (Sidelite, Transom & Window Frame Assemblies)

  • UL fire-rated hollow metal frame assemblies
  • Glazed or paneled sidelite configurations
  • NAAMM/HMMA compliant for quality assurance
UL Fire-Rated Hollow Metal Doors & Frames

UL Fire-Rated Hollow Metal Doors & Frames

  • Multiple core options including temp rise
  • Lead-lined frames for radiation shielding
  • One-year warranty with direct fleet delivery

Frequently Asked Questions

What fire-rating certifications do your hollow metal doors and frames carry?

Our hollow metal doors and frames feature UL fire-rated labeling and are built to comply with NAAMM/HMMA specifications. These products are engineered for commercial construction, fire safety egress, and life safety openings, providing verified performance for fire-rated doorway requirements.

What steel gauges are available for fire-rated doors and frames?

What frame assembly options are available for fire-rated installations?

Can fire-rated window and sidelite frames be customized?

What door core options are offered for fire-rated doors?

Are specialty configurations like double egress or lead lining available?

What lead times are available for fire-rated doors and frames?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Commercial Building Construction

Commercial Building Construction

Fire-rated doors and frame assemblies designed for standard doorways, corridors, and life safety egress requirements.

Hospital and Healthcare Facilities

Hospital and Healthcare Facilities

Specialized lead-lined and temperature rise core hollow metal assemblies for radiation shielding and fire safety.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Certified Fire-Rated Engineering

Assemblies meet NAAMM and HMMA specifications with UL fire-rated labeling across doors, frames, and engineered sidelite and transom openings.

Versatile Hollow Metal Profiles

Manufactured in 18 to 12 gauge steel thickness with welded or knock-down assembly, custom profiles, and multiple performance core choices.

Responsive Quick-Ship Programs

Dedicated direct delivery options with quick-ship production schedules ranging from same-day and one-day programs up to standard schedules.

Request a Quote for Fire-Rated Openings

Submit your door schedules and frame configurations to receive a detailed estimate from our experienced engineering and estimating team.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (866) 893-3338. You can also send us a quick email at info@custommetalproducts.bz.