90 MIN FIRE RATED
35 x 80 3/4 Steel Door Slab, Mortise Prep – 20 Gauge, Fire-Rated - 90 Min
35 x 80 3/4 Steel Door Slab, Mortise Prep – 20 Gauge, Fire-Rated - 90 Min
Regular price
$398.48
(EACH)
Sale price
$398.48
Regular price
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Product Information
🔥 In Stock – Ready for Fast Delivery in NYC
Door Overview
Exact Door Size
35-3/4" x 79-1/8"
Thickness
1-3/4"
Mortise Pocket
7-5/8"
Approx. Weight
85 lb
Fire Rating
90 Minutes
Material
20-Gauge Galvanized Steel
Steel Door Specifications
🚪 Door Overview
- Exact Door Size: 35” x 80 3/4”
- Lock Prep: Mortise Pocket 7 7/8"
- Hardware Prep: Small Peep
- Window Prep: ----
- Louver Prep: ----
- Lock Location: Center lock 42 7/8"
- Hinge Size: 4 1/2"
- Door Swing: RH
- Hinge Location: 4 7/8" - 37 1/8" - 69 3/8"
- Door Thickness: 1 3/4"
- Fire Rating: 90 Minutes
- Material: 20 Gauge Steel
- Door Type: Hollow Metal Door Slab
- Condition: Brand New
- Door Tag: #17
✔ Available for supply or installation
✔ Fast turnaround
✔ Bulk pricing available
📦 What’s Included
- 1 × Hollow Metal Door Slab (Mortise Prep)
👉 Hardware sold separately
⚡ Best For
- Apartment building corridors & unit entries
- Stairwells and fire-rated exits
- Mechanical / boiler rooms
- Basement and utility rooms
- Commercial offices and storage areas
- Property management upgrades & replacements
🚚 Shipping & Pickup
- Local NYC delivery available
- Warehouse pickup available
- LTL freight available nationwide
🔧 Need Installation?
👉 We offer professional installation in NYC.
Contact us or request a quote for full service (door + hardware + install).
💰 Bulk Pricing Available
Ordering multiple doors?
👉 Contact us for contractor pricing and project discounts.
📩 Get Pricing Fast
Send us:
- Door size
- Photos or plans
- Project location
👉 We’ll respond quickly with pricing and availability.
⚠️ Prices subject to change based on steel costs – lock in your order today.
Energy Efficient
Our hollow metal steel doors come standard with an insulated honeycomb core. This core type helps retain your commercial building's energy.
Fire & Code Compliance
UL Listed
FDNY Approved
NYC DOB
IBC Compliant
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:
- Verify opening dimensions and ensure rough opening is plumb and square.
- Position frame in opening and secure with temporary bracing.
- Level frame using shims at anchor points.
- Install anchors per specifications (typically 12" from corners, 24" on center).
- Verify door operation before removing temporary bracing.
- Install fire-rated seals and threshold.
- 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
Core Insulation
Honeycomb
Finish Standard
Galvannealed (Corrosion Resistant)
Trusted by thousands of happy customers
Installed in Brooklyn 12-unit building
Passed FDNY inspection
"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 ...
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"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 ...
"As an Interior Designer I recently had the pleasure of working with the wonderful staff..."
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 build...
"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 ...
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"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 ...
"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...
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"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 pictu...
"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 questio...
"Outstanding customer service and fair pricing"
We have been using them for over 15 yearsFrom start to finish always a smooth processProfessional at its finest
"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 sc...
Why Buy Direct from Universal?
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25% Savings
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Fast Delivery
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Expert Support
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⚠️ Steel prices fluctuate weekly — lock in today
🔥 Only 12 left in stock
⏱️ Next delivery: 1–2 business days
Working on a Multi-Door Project?
We offer bulk pricing for contractors, property managers, and developers.