Business Details
50+ Years
experience
Custom Stainless Steel & Galvanneal Doors & Frames Manufacturer
National Custom Hollow Metal Custom Hollow Metal has been a family-owned leader in custom hollow metal doors and frames since 1974. Our commitment to quality, craftsmanship, and innovation has made us a trusted partner for industries nationwide. We specialize in stainless steel and galvanneal doors and frames, meeting rigorous standards for durability, safety, and customization. Our team collaborates with organizations like NAAMM, DHI, and Underwriters Laboratories to ensure compliance with industry specifications. With advanced manufacturing capabilities, including AMADA fiber laser technology, we deliver precision-engineered products tailored to demanding environments. Our focus on rapid delivery options like Quik Ship and Hot Rush ensures clients meet critical timelines without compromising quality.Certified by Warnock Hersey and UL, we provide fire-rated and specialty doors for pharmaceutical, medical, government, and commercial sectors. Our customer-centric approach prioritizes personalized service, technical expertise, and adherence to ASTM specifications. From thermal and STC-rated doors to hurricane-resistant and bulletproof solutions, we cater to diverse project requirements. Our 50-year legacy reflects our dedication to continuous improvement, technical excellence, and client satisfaction across all industries we serve.
Services
Stainless Steel Doors
Galvanneal Doors
Lead-Lined Doors
Bullet Resistant Doors
STC Doors
Thermal Doors
Hurricane Doors
Custom Doors
Details
- Year established: 1974
Highlights and features
- Family-owned since 1974 with unmatched industry experience
- Fastest delivery timeframes with Quik Ship capability
- DHI Trained Professionals for technical expertise
- State-of-the-art manufacturing with AMADA fiber laser technology
- Custom solutions for pharmaceutical, medical, and government facilities
Associations and certifications
- Underwriters Laboratories Inc.
- Warnock Hersey
- NAAMM-HMMA
- DHI
What people say
Unmatched durability
Fastest delivery
Technical expertise
Custom solutions
Superior craftsmanship
Services
Stainless Steel Doors
Our stainless steel doors provide unmatched durability and corrosion resistance for demanding environments. Constructed from premium 304/316-grade steel with fire ratings up to 3 hours, they feature polystyrene or honeycomb cores for thermal efficiency and soundproofing. Available in custom sizes up to 4'10" width and 12' height, these doors suit pharmaceutical labs, hospitals, and industrial facilities requiring hygiene and longevity.
Lead-Lined Doors
TrustShield Lead-Lined doors offer critical radiation protection for medical facilities and laboratories. Available in galvanneal or stainless steel with 1/32"-1/8" lead lining, these doors feature polystyrene cores and reinforced construction to meet shielding requirements. Custom sizes up to 5' width and 12' height ensure compatibility with radiation-controlled environments while maintaining fire safety compliance.
Bullet Resistant Doors
SafeShot bullet-resistant doors provide Level 3 protection for high-risk facilities. Constructed with 12-gauge galvanneal or stainless steel, these doors protect against deliberate threats in government buildings, schools, and commercial properties. Available in standard sizes (20x68 to 50x120) and fully tested to ASTM standards, they combine security with code-compliant durability.
STC Doors
SoundSafe STC doors achieve ratings from STC 34 to STC 51, controlling noise pollution in sensitive spaces. Designed for quick delivery (5-10 days for limited quantities), these doors include gasketing seals and specialized cores to meet sound transmission requirements in healthcare, education, and government facilities while maintaining fire rating options.
Thermal Doors
ThermaHold thermal doors prevent cold transfer and improve energy efficiency in commercial buildings. Tested to ASTM C1363-19 standards, they feature thermal break frames and ISO cores to reduce U-values. Ideal for cold storage and climate-controlled environments, these doors minimize condensation while maintaining structural integrity and weather resistance.
Questions
What delivery options do you offer?
We provide Quik Ship (1-20 days), Hot Rush (1-2 days), and Walk Thru (1 day) services for urgent projects.
Can you create custom-sized doors?
Yes, we manufacture doors up to 5'x12' with non-standard configurations including hexagonal and sliding plate designs.
Are your doors fire-rated?
Yes, we offer fire-rated options with UL/WH certifications up to 3-hour ratings using honeycomb core technology.
What industries do you serve?
We specialize in healthcare, pharmaceutical, government, education, and industrial sectors with specialized requirements.
Do you offer thermal performance solutions?
Yes, our ThermaHold doors feature thermal breaks and ISO cores to reduce energy costs and prevent condensation.
What certifications do you hold?
We maintain NAAMM-HMMA, DHI, UL, and Warnock Hersey certifications for quality and industry compliance.
