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Fire Rated Hollow Metal Door Pairs - Commercial Steel Double Doors with Fire Rating
This page covers fire rated hollow metal door pairs — commercial steel double doors with a listed fire rating. These assemblies are required when the opening is part of a fire separation, egress corridor, stairwell, rated shaft, or other area requiring a specific fire resistance rating.
For specifications, frames by wall type, installation resources, and parts, start with our main authority hub:
Commercial Hollow Metal Doors - Complete Guide
Ready to quote a custom fire rated door pair? Use our quote tool: Build Your Own Fire Rated Hollow Metal Door Pair (Quote Tool)
Fire rated hollow metal door pairs are engineered steel double door assemblies tested and certified to provide a rated level of fire resistance (typically 20, 45, 60, 90, or 180 minutes). These doors are labeled and listed for fire performance and must be installed with matching rated frames and compatible hardware.
Need help fast? Call 866-232-5673 or text photos to 210-275-8966.
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Fire Ratings & Code Requirements
Fire rated hollow metal door pairs are tested and listed to withstand fire exposure for a specified period (e.g., 20, 45, 60, 90, 180 minutes). These ratings are assigned by independent labs (e.g., UL) and are required on openings where the building code specifies a fire separation.
- 60 minute doors - common in offices, corridors, and rated partitions
- 90 minute doors - required in higher hazard areas or across stair enclosures
- 180 minute doors - typically found in fire walls or between differing occupancies
For foundational definitions: Are Hollow Metal Doors Fire Rated? and Are Fire Doors Hollow?
Sizing, Rough Openings & Measuring
Correct sizing of a fire rated door pair and rough opening is essential to ensure clearance, hardware compatibility, and proper labeled installation. Measure from jamb to jamb, head to sill and verify wall conditions before ordering.
For common sizes, shop: Hollow Metal Doors by Size.
Fire Rated Frames & Wall Types
Fire rated door pairs must be installed in a fire rated frame and wall for the assembly to perform as tested. Frame selection depends on wall type (drywall, stud, block, brick, concrete) and code requirements.
For fire rated hardware guidance, see below.
Fire Rated Hardware for Door Pairs
Fire rated door pairs require hardware listed for use in fire rated openings. This includes:
- Fire rated panic hardware
- Fire labeled hinges
- Fire rated locksets and electrified hardware
- Thresholds and gasketing systems where required
See compatible parts: Hollow Metal Fire Door Hardware Kits and Panic Bar Hardware.
How to Order or Quote a Fire Rated Door Pair
The most accurate way to price a fire rated door pair is with our quote tool. Configure door size, fire rating, prep requirements, frame type, and hardware needs, then submit for pricing and lead time.
Build Your Fire Rated Hollow Metal Door Pair (Quote Tool)
What you should know before quoting
- Fire rating required (60, 90, 180 minutes)
- Door size and handing
- Wall type and frame selection
- Hardware list (panic bars, hinges, locksets)
Prefer a packaged solution? Start here: Hollow Metal Door Packages.
Install & Repair Guides
Need step-by-step help on frames and installation? Start here: Hollow Metal Door Resources.
Door Parts for Repairs & Retrofits
If you are maintaining fire rated openings and need replacement components, we carry commercial-grade parts compatible with hollow metal doors.
- Hollow Metal Fire Door Hardware Kits
- Panic Bar Hardware
Fire Rated Hollow Metal Door Pairs
A fire rated hollow metal door pair are two steel doors with insulated cores that has been tested to withstand fire for a given period of time. Fire rated hollow metal door pairs are available with 3 hour, 1-1/2 hour, 1 hour, 45 minutes, or 20 minute labels. Fire rated hollow metal door pairs offer a wider net door opening than single fire rated doors. If a wall is fire rated, the hollow metal door must be fire rated too.
Fire Rated Hollow Metal Door Pair Features
- Heavy duty 18 Gauge steel is standard. 16 and 20 gauge is also available.
- Insulated polystyrene core is standard (R-Value 7.14, U-Value 0.14). Honeycomb, steel stiffened, or polyurethane cores available.
- Fire rated up to 3 hours is standard.
- Galvannealed steel is standard.
- Heavy duty steel cap is standard.
- Universal 4.5" x 4.5" Square Hinge Prep
- 7 Gauge hinge reinforcement is standard.
- Double baked gray rust inhibiting primer standard.
- Manufactured in the USA.
- Heavy duty door closer reinforcement standard.
- 1-3/4" door thickness.
Fire Rated Hollow Metal Door Pair Configurations
Fire rated hollow metal door pairs come in 5 basic handing configurtions: left hand reverse active, right hand reverse active, left hand active, right hand active, both door panels active. The chart below shows the common louvered hollow metal door pair configurations.
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Fire Labels
Fire rated hollow metal doors are classified by a fire label. The fire label is located on the hinge side of the door, and denotes how long the door can withstand a fire. The classification is in minutes and can be either 20 minutes, 45 minutes, 60 minutes, 90 minutes, or 180 minutes. The illustration below shows the various fire labels.
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Fire Rated Hollow Metal Door Pair Lock Prep
Fire rated hollow metal door pairs typically consist of an active door panel and an inactive door panel. Common preps for the fire rated active door panel include:
- 161 Lock or Deadbolt Prep (Bored Lock Hole with 2-3/4" backset for use with any commercial cylindrical lock)
- 86 Mortise Edge Prep (Mortise pocket for use with any commercial mortise lock. Face prep by installer)
- Blank Lock (No Bored Hole)
- RPD Rim Panic Prep (Reinforced prep designed for mounting a rim panic exit device on face of door)
Common preps for the fire rated inactive door panel include:
- ASA Strike Prep (Strike prep on inactive door panel)
- Flush Bolt Prep (Top and Bottom Flush bolt prep on inactive door panel)
For fire rated hollow metal door pairs that have two active door panels, common preps would include:
- 161 Lock or Deadbolt Prep (Bored Lock Hole with 2-3/4" backset for use with any commercial cylindrical lock)
- 86 Mortise Edge Prep (Mortise pocket for use with any commercial mortise lock. Face prep by installer)
- Blank Lock (No Bored Hole)
- RPD Rim Panic Prep (Reinforced prep designed for mounting a rim panic exit device on face of door)
Fire Rated Hollow Metal Door Pair Hinge Prep
Fire rated hollow metal door pairs are prepped standard for 4.5" x 4.5" square ball bearing hinges with heavy duty 7 gauge hinge reinforcements. Continuous hinge prep available upon request.
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Fire Rated Hollow Metal Door Pair Sizes
Fire Rated hollow metal door pairs are available in all standard door widths up to 8'-0" (2 Each 4'-0" door panels) and heights up to 8'-0" (96"). Custom door widths and heights are available for quotation.
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Fire Rated Hollow Metal Door Pair Certifications
- Designed and tested to comply with the requirements of the Florida Building Code including High Velocity Hurricane Zone.
- FL13889, FL17900, FL18463 Labels Available
- Meets or exceeds ANSI 250.4 and ANSI 250.8
- 3 Hour Fire Rated
Fire Rated Hollow Metal Door Pair Applications
Fire rated hollow metal door pairs are an important part of any commercial building. Fire rated doors provide safety and protection to pedestrians while also minimizing damage to the building and property. Below are some popular applications for fire rated hollow metal door pairs:
- Stairwells
- Residential Corridors
- Incidental Use Areas
