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DURASUB FIRE DOORS 

High-Performance Steel Fire Doors 

Blockade Barriers supplies and installs high-performance steel fire doors for demanding commercial and industrial environments. The Durasub range includes doors tested to provide up to 4 hours fire resistance, engineered to perform where safety and reliability are critical.

KEY FEATURES

  • Fire rated up to 4 hours

  • No Fire Bolts

  • Door sizes up to 5m high and 6.8m wide

  • Wide range of hardware options 

ABOUT
DURASUB FIRE DOORS

The Durasub range offers a level of flexibility rarely found in fire-rated steel doors. Every doorset is purpose-built to your exact specification, with tested solutions available up to 5m high and 6.8m wide. This makes the range ideal for complex or non-standard openings where performance cannot be compromised.

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Available in single and double leaf designs, Durasub fire doors are suitable for both internal and external applications. Variants include Passive Air, Blast, Acoustic, Ballistic, and Security options, ensuring the right solution for each project requirement.

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Constructed from a high-strength composite panel of fibre-reinforced cement mechanically bonded to punched steel sheets on both outer surfaces, these doors deliver exceptional impact resistance and durability. Durasub doorsets are suitable for installation into all structural wall types and, once installed, require minimal maintenance while delivering long-term performance in harsh environments.​

TECHNICAL SPECIFICATIONS
Substation Fire Doors Blockade Barriers
FEATURES

Fire resistance level up to - /240/30

 

Structural Opening

  • Height: 5,000 mm

  • Width: 6,800 mm

 

Door Leaf

  • Overall Thickness: 50 mm

  • Material: 9.5 mm thick composite panel of fibre-reinforced cement mechanically bonded to punched steel sheets on both outer faces.

  • ​Joint Construction: Mitred and welded

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Frame

  • Frame Options:

    • Unequal angle frame: 150 × 90 × 8 mm

    • Pressed metal frame: up to 50 mm wide with 25 mm rebate

  • Capping: 90 × 50 × 3 mm thick angle section

  • Joint Construction: Mitred and welded joints

  • Configuration: Single or double rebate with three-sided frame

  • Threshold Plate: 70 × 10 mm thick mild steel plate

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Finish

  • Frame and Leaf: Paint finish or powder coating

substation fire doors blockade barriers
HARDWARE (standard)

Hardware as Standard​

  • Full-length piano hinge suitable for cladding

  • TS83 door closer

  • Panic exit device

  • Two-way extension rods

  • Night latch and handles

  • Sequence selector

Certification

 

  • Fire tested to AS 1530.4:2015

  • Complies with AS 1905.1:2015

Hardware

DURASUB

D - EXT - 1 

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AUSTRALIAN 

STANDARDS

AS 1905:2015

Contact Durasteel Fire & Blast Doors Australia
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