![]()
Fire Rated Hollow Metal Doors - Commercial Steel Fire Doors (Single)
This page covers fire rated hollow metal doors (single door openings) - commercial steel doors with a listed fire rating. Fire rated hollow metal doors are used when an opening is part of a fire separation, rated corridor, stairwell, shaft, or other area where building codes require a specific fire resistance rating.
For the complete hollow metal door guide (packages, frames, parts, resources, and videos), start with our main authority hub:
Commercial Hollow Metal Doors - Complete Guide
Need to quote a custom fire rated door with the right prep and frame selection? Use our quote tool: Build Your Own Fire Rated Hollow Metal Door (Quote Tool)
Fire rated hollow metal doors are engineered steel doors that are tested and labeled to resist fire for a specified time. Common ratings include 20 minutes, 45 minutes, 60 minutes, 90 minutes, and 180 minutes, depending on the wall rating and code requirements for the opening.
Need help fast? Call 866-232-5673 or text photos to 210-275-8966.
Quick Links
Fire Ratings & Code Basics
Fire rated doors are part of a tested assembly (door + frame + hardware) designed to slow the spread of fire and smoke. The fire rating required is usually determined by the wall rating, building use, occupancy type, and the location of the opening (e.g., corridor, stairwell, mechanical room, or fire barrier).
- 20 minutes: often used in smoke and draft control applications when permitted by code
- 45 to 60 minutes: common in corridors and rated partitions
- 90 minutes: common for stairwells and higher hazard separations
- 180 minutes: typically used for fire walls and high-rated separations
Learn more: Are Hollow Metal Doors Fire Rated?, Are Fire Doors Hollow?, and What Is a 2 Hour Fire Door?
Where Fire Rated Hollow Metal Doors Are Commonly Used
Fire rated hollow metal doors are used in commercial and institutional buildings where openings must maintain a rated barrier. These are some of the most common applications:
- Rated corridors (egress paths)
- Stairwell entrances
- Mechanical and electrical rooms
- Trash rooms and storage rooms
- Fire barrier and fire wall openings
- Multi-tenant building separations
Sizing, Rough Openings & Measuring
Correct sizing is critical for proper installation and inspection. Measure the rough opening and confirm wall conditions before ordering. If you're replacing an existing door, confirm the frame condition and hinge/strike prep.
For common sizes, shop: Hollow Metal Doors by Size.
Fire Rated Frames & Wall Types
Fire rated doors must be installed with a compatible fire rated frame and the correct anchors for the wall type. Choose frames based on your wall condition and whether the opening is new construction or retrofit.
For anchors and install references: Hollow Metal Door Anchor Types and Hollow Metal Door Resources.
Fire Rated Hardware Compatibility
Hardware in fire rated openings must be approved for that application. Door closers are often required, and hardware selection must match the rating and use of the opening. If you are unsure what hardware is allowed, contact us and we can help you confirm the right setup.
Need a Fire Rated Door Pair (Double Doors)?
If your opening is a double door configuration, use this page: Fire Rated Hollow Metal Door Pairs.
How to Order or Quote a Fire Rated Hollow Metal Door
The fastest way to get accurate pricing is with our quote tool. Configure size, rating, prep requirements, frame type, and hardware, then submit for pricing and lead times.
Build Your Fire Rated Hollow Metal Door (Quote Tool)
What you should have ready
- Fire rating required (20, 45, 60, 90, 180 minutes)
- Door size and handing
- Wall type and frame selection
- Hardware list (closer, lock type, panic hardware if required)
Prefer a packaged solution? Start here: Hollow Metal Door Packages.
Install & Repair Guides
Need step-by-step help on frames and installation? Start with: Hollow Metal Door Resources.
Need to identify parts visually? Use: Interactive Hollow Metal Door Repair + Video Guides
Parts for Fire Rated Openings
If you are maintaining fire rated openings and need replacement components, we carry commercial-grade parts compatible with hollow metal doors. Always confirm listings and compatibility for rated openings when required by your project.
Get Help Selecting the Right Fire Rated Hollow Metal Door
Call 866-232-5673 or text 210-275-8966 with photos and measurements. We will help confirm the correct fire rating, frame selection, and prep options for your project.
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.
![]()
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.
![]()
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.
![]()
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.
![]()
![]()
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
