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90 MIN FIRE RATED

36 x 80 Steel Door Unit – Commercial Flush Hollow Metal Door with Frame, Self-Closing Hinges & Cylindrical Lockset | Universal Fireproof Door

36 x 80 Steel Door Unit – Commercial Flush Hollow Metal Door with Frame, Self-Closing Hinges & Cylindrical Lockset | Universal Fireproof Door

SKU #: 3684SDUKDLH

Regular price $575.00 (EACH)
Sale price $575.00 Regular price $648.00 (Save $73.00, 11% Save)
In Stock Ships Same Day or Next Business Day
Quantity
Need custom dimensions or bulk pricing? Send us your measurements for a custom quote →
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Product Information

Door Overview

Exact Door Size 35-3/4" x 79-1/4"
Fire Rating 90 Minutes
Material 20-Gauge Galvanized Steel

The Hollow Metal Door Package consists of the following:

  • A 20-gauge steel hollow metal door
  • A 16-gauge frame
  • (3) 4-1/2" square corner spring hinges with a US26D satin chrome finish
  • A cylindrical knob lock (Please specify lock function)

Steel Door Specifications:

  • Insulated with honeycomb core
  • Galvannealed (standard)
  • 7-gauge hinge reinforcements
  • Reinforced 161 lock prep
  • Meets ANSI standards
  • Universal 4-1/2" hinge prep
  • Made in the USA, Long Island, New York

Fire & Code Compliance

UL Listed
FDNY Approved
NYC DOB
IBC Compliant

Fire Rating

90 Minutes (UL 10C) - Tested and certified for 90-minute fire protection. Suitable for commercial and industrial fire-rated openings.

Certifications & Standards

  • FDNY Certificate: Approved for installation in all NYC boroughs
  • NYC DOB Approval: Meets all Department of Buildings requirements
  • IBC/NFPA Compliant: Conforms to International Building Code standards
  • ANSI Certified: Meets ANSI A250.8 standards for commercial steel doors

Installation Guidelines

Required Tools:

  • Level (minimum 48")
  • Hammer drill with masonry bits
  • Screwdriver set or impact driver
  • Shims (wood or steel)
  • Safety equipment (gloves, glasses)

Installation Steps:

  1. Verify opening dimensions and ensure rough opening is plumb and square.
  2. Position frame in opening and secure with temporary bracing.
  3. Level frame using shims at anchor points.
  4. Install anchors per specifications (typically 12" from corners, 24" on center).
  5. Verify door operation before removing temporary bracing.
  6. Install fire-rated seals and threshold.
  7. Apply required labels and conduct final inspection.

Important: All fire-rated doors must be installed by licensed professionals in accordance with NYC building codes. Improper installation voids fire rating and warranty.

Material Specifications

Door Material 20-Gauge Galvanized Steel
Frame Material 16-Gauge Welded Steel
Core Insulation Honeycomb
Finish Standard Galvannealed (Corrosion Resistant)
  • 25% Savings

    vs. distributors

  • Fast Delivery

    same-day pickup on stock items

  • Expert Support

    24/7 available

Professional Installation Services

Expert door and hardware installation for residential and commercial projects.

Request Installation

Why Contractors Buy From Universal Fireproof Door

We're not a reseller — we're the main fabricators

  • Main Fabricators — Not a Reseller

    We manufacture every door in-house. No middlemen, no delays, no markup.

  • Made in New York

    Fabricated in Long Island, NY. Local pickup and same-day service available for NYC contractors.

  • Fast Turnaround on Standard & Custom Doors

    Standard doors ship in 24-72 hours. Custom orders? We can handle special sizes and specs quickly.

  • Bulk Order Discounts Available

    Multi-door projects? We offer competitive bulk pricing for contractors, property managers, and developers.

  • Special Requirements? We Can Fabricate It

    Non-standard sizes, custom preps, special hardware — we handle it all in our facility.

  • FDNY + UL Certified

    All doors meet NYC building codes and fire safety standards. Pass inspection guaranteed.

Need this fast or slightly different?

We fabricate in-house and can handle special sizes, preps, and requirements with quick lead times.

Call (718) 455-8442

Working on a Multi-Door Project?

We offer bulk pricing for contractors, property managers, and developers.

  • "Highly recommended."

    Easy transaction, fast courteous response and they offer discounts.
    Most importantly, they truly value their customers.
    Work done was excellent and product was great quality.
    I am very satisfied.

    Aj Peralta
  • "If I could give Universal 10 stars I would"

    If I could give Universal 10 stars I would, from their communication, quality of work, and their employees, I was genuinely impressed by them all. I had 2 doors installed in my facility by their crews and they did phenomenal work. I had even a slight user error occur by one of my members (gym facility) and universal immediately sent out their team to handle. Thank you Universal! I would highly recommend!

    Brad Waltman
  • "As an Interior Designer I recently had the pleasure of working with the wonderful staff at Universal Fire Proof Doors."

    I had commissioned them to design, fabricate, deliver and install a really beautiful Full French Motif Door for the main entrance to one of my clients Mix Use Residential buildings in Brooklyn Heights, NY.

    Not only did they deliver a great product but their attention to detail, professionalism and customer care lead by manager Christian was impeccable from start to finish. I implore anyone looking to enhance their residential or commercial projects to discover what Universal Fire Proof Doors can do for you.

    Alexander Morrison
  • "Universal fire door made our door purchase so easy."

    We told them what we needed and they worked with us to get our beautiful front entry door. We needed a high security option for our office front.
    Universal are thorough in their email and phone communication to avoid any errors on sizing and were extremely helpful and informative on what would be the best options for us.
    My doors just got installed this week and we am so happy with the results. The whole process was very seamless from beginning to end - from selection and pricing then the delivery of our doors. I worked with Ari via email and phone who is extremely knowledgeable and she guided us in the right direction – we could not have done it without her. We did our own installation so I cannot comment on that but overall I am very happy with the results and feel it was worth every penny we spent.

    Thanks all!

    J.D.
  • "We hired Universal Fireproof Doors and had a fantastic experience from start to finish."

    The entire team was professional, efficient, and reliable. A special shoutout to Lorena, who was absolutely amazing, knowledgeable, responsive, and a pleasure to work with. She made the whole process smooth and stress-free. Highly recommend this company if you're looking for top-quality service and products!

    Forever New Construction Inc.
  • "True professionals!"

    We needed - what else - fireproof doors. Called this place, they sent someone to take the measurements, we were provided with a quote, ordered the doors, they were manufactured, and installed. All was done professionally and perfectly. Posting a picture. Thank you for a job well done!

    Zina L
  • "I always have a great experience working with Universal."

    We have ordered several fire rated doors for our NYC properties and Lorena is a pleasure to deal with. They can usually provide an estimate for door replacements just with pictures, making my life easier, install is seamless and turnaround is extremely quick. Overall, a great company to work with time and time again.

    Cassandra Metzger
  • "As the manager for my family building, I answer to a trust."

    I was a bit nervous about my choice to choose UFD. Truth of the matter is everything was handled with care, from customer service, estimate, fabrication and install. Any questions or changes that needed to be done, where answered and changed quickly. Which helped ease my anxiety. Professionalism at its best. Will definitely use them again.

    Thank you
    Evette Robledo Vargas

    Evette Robledo
  • "Outstanding customer service and fair pricing"

    We have been using them for over 15 years
    From start to finish always a smooth process
    Professional at its finest

    tom king
  • "The workers were punctual, polite, and respectful of the property,"

    their work was professional and much neater than I thought it would be considering the doorframe butted right up against new Sheetrock on the inside,which they didn’t leave a scratch on it 👌,,, the price was great, and anyone I spoke to at the office treating me with respect as if I were an old friend,,, I would definitely recommend them, thanks again for a great job

    Michael P

FAQs

What's the lead time for custom sizes?

3-5 Business days, Next day expedition available

Does this come primed or painted?

For an additional fee

Is installation included?

No