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Fire Rated Steel Door

Fire rated steel doors are the backbone of passive fire protection in commercial, industrial, and institutional construction. Bastion's comprehensive range of Fire Rated Steel Doors covers every requirement from basic 20-minute smoke barriers to heavy-duty 3-hour fire wall assemblies. Manufactured from cold-rolled or galvanized steel and tested to ANSI/UL 10B and UL 10C standards, these doors provide architects, contractors, and facility managers with a single, reliable source for all fire-rated opening needs — backed by UL listing and factory-direct support.

Key Specifications

Door Type: Commercial hinged metal/steel door (Single / Double)
Width Range: 24" / 28" / 30" / 32" / 34" / 36" / 42" / 44" / 48"
Height Range: 6'8" (80") / 7'0" (84") / 8'0" (96")
Fire Rating: Options ranging from 20 minutes to 3 hours Compliant with UL10C UL10B NFPA 252 NFPA 80

Factory Capabilities & Custom Options

Hardware: Panic bars (exit devices), heavy-duty mortise locks, lever handle sets, door closers, push/pull plate systems
Optional Features: Fire-rated vision panels (glass lites), louvers, factory-prepped hardware cutouts, pre-installed hardware
📦 Stock available for standard sizes—ready for immediate shipment | Factory-direct pricing for bulk projects

📞 Project Bidding & Quote Inquiries:

Email: brucelee@bastionwin.com | Hotline: +86 15318950099

    UL 10C LISTED • IBC 2021 COMPLIANT

    Fire Rated Steel Door — Certified Protection for Every Building Type

    In North America, fire rated steel doors are certified to UL 10C (positive pressure) or UL 10B (neutral pressure) standards, with ratings ranging from 20 minutes to 3 hours. The rating you need is determined by the fire-resistance rating of the wall the door is installed in, the occupancy type, and the local building code. Bastion manufactures fire rated steel doors across the full rating spectrum, each shipped with a WHI certification label and complete installation documentation.

    Product Highlights

    ✓ Complete Rating Spectrum: 20, 45, 60, 90, and 180-minute fire ratings in one product family
    ✓ Dual Standard Certification: Tested to both ANSI/UL 10B (neutral pressure) and ANSI/UL 10C (positive pressure)
    ✓ Material Flexibility: Cold-rolled steel for interior applications; galvanized steel for moisture-prone or exterior installations
    ✓ Frame Compatibility: Available with hollow metal frames, masonry frames, or drywall frames to match wall construction type
    ✓ Hardware Flexibility: Compatible with mortise locks, cylindrical locks, panic devices, automatic operators, and access control systems
    ✓ Project Support: Dedicated fire-door specialists provide code consultation, submittal packages, and scheduling

    ⏱ Quick Response • Factory Direct Delivery • Free Preliminary Quote

    UL 10B Listed 3-Hour Steel Fire Door
    UL 10C Certified • 90-Min Fire Rating

    Why Choose Our Fire-Rated Steel Doors

    Three pillars that set us apart from US distributors and generic suppliers

    Factory direct

    Factory-Direct Pricing

    Skip the distributor markup. Buy directly from the manufacturer and save 20–40% on your project cost. 15 years of experience, 500,000+ doors annual capacity — reliable bulk delivery you can count on.

    UL CE certifications

    Full Range UL/CE Ratings

    From 20-minute to 3-hour ratings, all certified to UL 10C / NFPA 252 standards. WHI labels shipped with every door. One supplier covers every opening rating requirement in your project — no need to source from multiple vendors.

    Quick quote

    Quick Quote

    For standard configurations and complete specifications, our team strives to provide a preliminary quote within 20 minutes.

    Where General Contractors Get Doors

    Best Prices On Commercial Doors. Period.

    • ✓ Other Companies Say "Request A Quote", We Just Give You The Price
    • ✓ Top Tier Contractor Pricing & Discounts With The Best Lead Times
    • ✓ Insured Delivery Right To Your Jobsite

    ⏱ Takes Less Than 2 Min. • No payment required for free quote.

    Commercial fire-rated steel doors

    Your Doors Start Here

    Options Range From Metal, Wood, Steel, And Storefront Doors

    METAL DOOR SPECIFICATIONS

    Metal door construction detail

    Our commercial metal doors are constructed of the highest grade steel and with the following specifications:

    • 1-3/4″ Thick, non-handed design with reversible hinge plates
    • A40 Galvanized Steel
    • Gray primer painted with baked on two stage epoxy resin.
    • 18 Gauge Steel Face Sheets
    • High-density rock wool core
    • Hinge and Lock Edge seams “continuously” welded full length
    • 12 Gauge Closer Reinforcement (18″ X 6″)
    • 16 Gauge 161 Lock Prep. or 14 Gauge 86 Lock Prep
    • 16 Gauge Flush Top Channel / Inverted Bottom Channel
    • Square Door Edge
    • 10 Gauge Hinge Reinforcement

    Fire Ratings Explained

    Choose the right UL fire rating for your application — all certified to UL 10C / NFPA 252

    20 Minute rating
    20 min
    UL Rating: 1/3 hr

    Corridors, office partitions, non-rated walls requiring smoke control.

    45 Minute rating
    45 min
    UL Rating: 3/4 hr

    1-hour fire wall openings, stairwells, hotel guest room corridors.

    60 Minute rating
    60 min
    UL Rating: 1 hr

    1-hour fire barriers, exit enclosures, vertical shaft separations.

    90 Minute rating
    90 min
    UL Rating: 1-1/2 hr

    1.5-hour fire walls, hazardous area enclosures, industrial separations.

    3 Hour rating
    3 hr
    UL Rating: 3 hr

    3-hour fire walls, high-hazard occupancy, severe fire exposure areas.

    Non fire-rated
    NON-FIRERATED

    All ratings come with WHI certification labels affixed to each door. Verify authenticity online via WHI directory.

    Door Sizes (All doors = 1-3/4″ thickness)

    6′8″ Height

    Door Call Size Nominal Width Nominal Height
    2068 2′0″ (24 inch) 6′8″ (80 inch)
    2468 2′4″ (28 inch) 6′8″ (80 inch)
    ⭐️2668 2′6″ (30 inch) 6′8″ (80 inch)
    2868 2′8″ (32 inch) 6′8″ (80 inch)
    21068 2′10″ (34 inch) 6′8″ (80 inch)
    3468 3′4″ (40 inch) 6′8″ (80 inch)
    3668 3′6″ (42 inch) 6′8″ (80 inch)
    3868 3′8″ (44 inch) 6′8″ (80 inch)
    4068 4′0″ (48 inch) 6′8″ (80 inch)

    7′0″ Height

    Door Call Size Nominal Width Nominal Height
    2070 2′0″ (24 inch) 7′0″ (84 inch)
    2470 2′4″ (28 inch) 7′0″ (84 inch)
    ⭐️2670 2′6″ (30 inch) 7′0″ (84 inch)
    2870 2′8″ (32 inch) 7′0″ (84 inch)
    21070 2′10″ (34 inch) 7′0″ (84 inch)
    3470 3′4″ (40 inch) 7′0″ (84 inch)
    3670 3′6″ (42 inch) 7′0″ (84 inch)
    3870 3′8″ (44 inch) 7′0″ (84 inch)
    4070 4′0″ (48 inch) 7′0″ (84 inch)

    8′0″ Height

    Door Call Size Nominal Width Nominal Height
    2080 2′0″ (24 inch) 8′0″ (96 inch)
    2480 2′4″ (28 inch) 8′0″ (96 inch)
    ⭐️2680 2′6″ (30 inch) 8′0″ (96 inch)
    2880 2′8″ (32 inch) 8′0″ (96 inch)
    21080 2′10″ (34 inch) 8′0″ (96 inch)
    3480 3′4″ (40 inch) 8′0″ (96 inch)
    3680 3′6″ (42 inch) 8′0″ (96 inch)
    3880 3′8″ (44 inch) 8′0″ (96 inch)
    4080 4′0″ (48 inch) 8′0″ (96 inch)
    Excellent
    ★ ★ ★ ★ ★
    G o o g l e
    M
    Michael R.
    Commercial Contractor
    G
    ★ ★ ★ ★ ★ ★
    Installation of Fire-Rated Steel Doors for Clients
    Client Commercial Steel Door Project
    The steel doors were delivered exactly according to our approved specifications. The surface finish is excellent, and the frame dimensions match our door openings perfectly.
    Project: Fire-Resistant Steel Door Project
    D
    Daniel K.
    General Contractor
    G
    ★ ★ ★ ★ ★
    Client Commercial Building Project
    Customer Door Installation
    Project communication went smoothly. We needed a set of custom steel doors, and they provided clear drawings, dimensions, and packaging information.
    Project: Custom Commercial Door Sets
    J
    James T.
    Project Manager
    G
    ★ ★ ★ ★ ★
    Client Industrial Construction Projects
    Installation for client commercial buildings
    We purchased multiple steel fire doors for a commercial project. The products were well-packaged, and the production schedule proceeded according to plan.
    Project: Multi-sector commercial projects
    J
    Mark W.
    Project Manager
    G
    ★ ★ ★ ★ ★
    Client Industrial Construction Projects
    10063.jpg
    The doors were manufactured according to our drawings and project requirements. The packaging was secure, the finish was consistent, and the delivery schedule was handled as planned.
    Project: Industrial Fire-Rated Door Project
    J
    David S.
    Commercial Contractor
    G
    ★ ★ ★ ★ ★
    Client Industrial Construction Projects
    Installation for client commercial buildings
    We ordered custom steel doors for a commercial building project. The dimensions and technical details were confirmed before production, and everything was delivered according to the agreed requirements.
    Project: Multi-sector commercial projects
    J
    Andrew B.
    General Contractor
    G
    ★ ★ ★ ★ ★
    Client Industrial Construction Projects
    Installation for client commercial buildings
    We needed several different door sizes and configurations for the project. The supplier provided clear technical information and confirmed the dimensions with us before production. The final products met our requirements.
    Project: Custom Commercial Fire Door Sets

    Configuration Options

    Build your door with these customizable options — all factory-prepped for easy installation

    Frame Type 

    / 

    Panel Styles

    Welded

    Welded

    Frame Type

    Knocked Down (KD)

    Knocked Down (KD)

    Frame Type

    Vision Lite

    Vision Lite

    With glass window

    Louvered

    Louvered

    Ventilation grille

    Swing Direction & Handing

    Left Hand

    LH (Left Hand)

    Hinges on left, swings in

    Right Hand

    RH (Right Hand)

    Hinges on right, swings in

    Left Hand Reverse

    LHR (Left Hand Reverse)

    Hinges on left, swings out

    Right Hand Reverse

    RHR (Right Hand Reverse)

    Hinges on right, swings out

    Hardware Prep

    Hinge Mortise Prep

    Hinge Mortise Prep

    Lock Body Prep

    Lock Body Prep

    Door Closer Prep

    Door Closer Prep

    Panic Device Prep

    Panic Device Prep

    Seals & Accessories

    Complete your fire door assembly with UL-listed accessories — one-stop solution

    Door Frame

    Floor Stop

    ANSI/BHMA Grade 1 certified floor stop built. fully compliant with NFPA 80, ADA, and California Prop 65.

    Threshold

    Threshold

    Aluminum/saddle threshold, adjustable height, fire-rated gasketing.

    Door Sweep

    Door Sweep

    Bottom seal with neoprene insert, smoke and draft control.

    Intumescent Seal

    Intumescent Seal

    Fire-activated expanding seal, perimeter gasketing for smoke control.

    Rain Drip Canopy

    Rain Drip / Canopy

    Exterior door weather protection, aluminum hood with drip edge.

    Kick Plate

    Kick Plate

    Stainless steel or brass kick plate, 8″/10″/12″ heights available.

    Smoke Seal

    Smoke Seal

    UL-listed smoke and draft control gasketing, perimeter installation.

    Hinges and Closers

    Hinges & Closers

    UL-listed spring hinges, ball-bearing hinges, and door closers.

    Detailed Product Description

    Technical Features

    - Fire Rating : 20 / 45 / 60 / 90 / 180 minutes
    - Test Standards : ANSI/UL 10B, ANSI/UL 10C, CAN/ULC-S104
    - Material : Cold-rolled or galvanized steel
    - Gauge : 0 ga. (standard), 18 ga. (heavy-duty), 16 ga. (industrial)
    - Core : Honeycomb / polystyrene / mineral wool / acoustic
    - Frame Types : Hollow metal, masonry, drywall, pressed steel
    - Max Size : Up to 8'0" × 10'0" (special engineering)

    Application

    - Office Building : Complete range of ratings for every office application — from 20-minute smoke partitions to 90-minute exit corridors.
    - Factory / Warehouse : Heavy-duty options for industrial fire walls and high-hazard occupancy separations with 3-hour ratings.
    - Hospital : Full spectrum of fire ratings for healthcare facility life-safety compartments, from patient rooms to central plants.
    - School : Code-compliant solutions for educational occupancies, from classroom doors to gymnasium and auditorium separations.

    Frequently Asked Questions

    Common questions from buyers, contractors, and distributors

    How is a fire rated steel door different from a regular steel door? +
    A regular (non-rated) steel door looks similar but has not been fire-tested and certified. It may use a combustible core, lack proper edge sealing, and its hardware is not fire-rated. A fire rated steel door has been tested to UL 10C standards, uses a rating-appropriate non-combustible core, has continuously welded edges, intumescent seals, and fire-rated hardware — all verified by a third-party certification label.
    How often do fire rated steel doors need to be inspected? +
    Per NFPA 80 (Standard for Fire Doors and Other Opening Protectives), fire doors must be inspected and tested not less than annually. The inspection includes verifying the door is self-closing and self-latching, checking for missing or damaged hardware, ensuring the label is present and legible, verifying no unauthorized modifications (holes, wedges, paint buildup), and confirming proper clearances. Inspection records must be maintained.
    How do I choose the right fire rating for my project? +
    Fire ratings are determined by building codes (IBC, NFPA 101) based on wall type, occupancy, and building height. Common ratings: 20 min (smoke barriers), 60 min (partitions), 90 min (corridors/stairwells), 180 min (fire walls).

    Send Your Project Specs

    Tell us your project requirements — door sizes, fire ratings, hardware, quantities, and destination port. Our team will respond with a detailed quote within 24 hours.

    Quick Quote Checklist: For the fastest response, include: ① Quantity & door sizes (W×H) ② Fire rating required (20/45/60/90 min or 3hr) ③ Hardware schedule (hinges/lock/closer) ④ Glass/louver requirements ⑤ Finish color (RAL#) ⑥ Destination port & target delivery date.

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