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90 Minute Plus Fire-rated Door — Interior

Interior doors with a 90 to 120 minute rating are available with two options; Hung doors, or Double Acting (door swings both ways) both available as single leaf or pair. Doors are supplied as a complete interior fire, smoke and acoustic door set, including door leaf, door jamb, seals and, when requested, appropriate hardware.

To achieve fire rating, fire doors must be self-closing and self-latching. Hardware must be selected from the approved hardware list.

Doors come factory sealer coated as standard, ready for priming and painting, and can also be supplied unsealed with a specified overlay (wood veneer, laminate, vinyl or metal). Inlay panels can also be affixed on request, to suit heritage buildings.

Refer to datasheets for door thickness and leaf sizes.

Due to their solid core NZFD fire doors can achieve up to STC 35 (acoustic rating) if installed with appropriate perimeter seals. Contact NZ Fire Doors for options to meet this STC.

Key Features
  • The door leaf is a mineral core (E-CORE) faced with an MDF layer
  • Factory sealed, ready for priming and painting on site
  • Specialist finishes include: timber veneer, steel, laminates
  • Fire-rated glass vision panels
  • Inlay panels to suit heritage buildings and bespoke work optional 
  • Acoustic rating of up to STC 35
  • Approved hardware list
  • Kick-plates optional
Scope of Use
  • Interior door appropriate for 90 to 120 minute rating
Limitations on Use
  • To achieve fire rating, fire doors must be self-closing and self-latching
  • Hardware must be selected from the approved hardware list
  • Acoustic values are difficult to achieve with double acting doors as it is not possible to fit drop sill seals to the door bottoms
  • Side and overhead lights are not available for 90+ Minute Doors
  • The construction of this door does not lend itself to high gloss finishes
Statement of Building Code Compliance

90+ Minute Fire-rated Interior Doors supplied by NZ Fire Doors Limited complies with the requirements of NZS 4520 Fire-resistant door sets when installed in accordance with NZ Fire Doors Installation Instructions into a complying fire-resistant wall, and when fitted with approved hardware.

Such compliance will be evident by certification tags applied to the jamb and leaf of each door:

  • Doors manufactured by NZ Fire Doors Limited have been tested to and meet the physical endurance requirements of NZS 4520 Appendix A
  • Doors manufactured by NZ Fire Doors Limited will satisfy the requirements of NZBC, B2 “Durability” under conditions of use, installation and maintenance specified by NZ Fire Doors, or specific contractual guarantees, whichever are overriding

NZS 4520 is referenced in the New Zealand Building Code Acceptable Solutions (Appendix C 6.1.1). NZ Fire Doors Limited fire doors have been successfully fire-tested in accordance with AS1530.4, as referenced in NZS 4520 and in Appendix C 5.1.1

Where fire rated laminated glass vision panels are fitted to fire doors manufactured by NZ Fire Doors Limited, the use of such glass is also within the prescription detailed in Certifire Certificate of Approval CF 862

Other Performance Attributes
  • Acoustic rating of up to STC 35

Warranty and Maintenance

In addition to the 15-year durability requirements of the New Zealand building code clause B2 DURABILITY, New Zealand Fire Doors also offer a warranty period of 1 year from date of installation, against defects in materials or workmanship.

  • Inspection of doors is recommended every six months
  • Repair any scratches or breaks in the decorative or protective finish 
  • Where doors are installed in damp areas, such as a bathroom, any break in the surface must be repaired immediately
  • All maintenance painting or clear finishing must be in accordance with the coating manufacturer’s instructions
Acoustics 101
Data Sheet: I-90-D (Double)
Data Sheet: I-90-H (Hung Door)
Compliance Statement
Installation Instructions: Doors
Maintenance Instructions
Firedoors 101

NZ Fire Doors provide an extensive range of fire rated and non-fire rated door and window systems.

Product Enquiries

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