Class B 2-Hour Fire Rated Solid Meranti Horizontal Slatted Door
This pre-hung Class B fire door brings together certified 120-minute fire protection and the natural beauty of solid kiln-dried Meranti timber. The distinctive horizontal slat design makes it a standout choice for exterior-facing commercial and residential applications where fire compliance, durability, and aesthetics all matter. Pre-hung in a mild steel frame with stainless steel hinges, it arrives ready to install with a 1-year guarantee.
Key Features
- Class B fire rated – 2-hour (120-minute) fire resistance
- Solid kiln-dried Meranti timber slats – natural, durable hardwood
- Distinctive horizontal slatted design
- Suitable for exterior use
- Pre-hung in a mild steel frame – suitable for walls up to 230mm
- Stainless steel hinges included
- 1-year guarantee
- Custom sizes available on request
Specifications
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Door Size: 813 x 2032 x 50mm
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Overall Frame Size (H x W x D): 2064 x 877 x 230mm
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Fire Rating: Class B – 120 minutes (2 hours)
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Material: Solid kiln-dried Meranti timber
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Design: Horizontal slatted
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Frame Material: Mild steel
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Hinges: Stainless steel
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Application: Exterior
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Wall Thickness: Suitable for walls up to 230mm
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Lead Time: 14–21 working days
How to Determine Door Hand
All fire doors open outward. Stand on the hinged side of the door to determine the hand:
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Hinged on the left side – Order Left Hand
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Hinged on the right side – Order Right Hand
Custom Sizes
Non-standard door sizes are available on request. Contact us to discuss your project requirements and lead times for custom-made fire doors.
Certification & Fire Test Details
This fire door assembly has been independently tested and classified in accordance with South African national standards:
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Test Authority: FIRELAB cc, Pretoria
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Classification Standard: SANS 1253 (fire door sets)
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Test Method: SANS 10177-2 (fire resistance tests for building elements)
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Classification Achieved: SANS 1253 – Class B (120-Minute Fire Door Assembly)
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Certificate Reference: FTC 25/099 (valid until December 2030)
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Full Test Report: FTC 20/199 (available on request)
Verified Fire Performance:
- Stability (R): Maintained for 120 minutes
- Integrity (E): Maintained for 120 minutes
- Insulation (I): Maintained for 60 minutes
Note: The tested assembly achieved E120 (120-minute integrity) — exceeding the minimum E60 integrity requirement for Class B doors under SANS 1253. This confirms superior flame and smoke containment performance.
Tested Assembly: Single-leaf door with symmetric MgO (Magnesium Oxide) composite core and Meranti hardwood edges, mounted in a 25 × 50mm steel frame with 3 hinges and a door closer. Tested in two configurations: as a fire escape door (outward-opening with a certified 3-point panic push-bar) and as an exit door (inward-opening with a standard lockset). The Class B certification covers both configurations when installed accordingly.
Official fire test certificate available on request for architects, fire consultants, inspectors, and insurers (FIRELAB Ref: FTC 25/099).
Typical Applications
Suitable where a 120-minute (2-hour) fire-rated door is required under South African building regulations (SANS 10400-T), including:
- Stairwells and lift lobby shafts
- Major fire-break walls in large commercial, industrial, or public buildings
- High-risk fire compartment boundaries
- Main escape routes in multi-storey developments
- Areas requiring SANS 1253 Class B compliance
Installation note: The Class B rating is valid only when installed as a complete assembly equivalent to the tested configuration — including the matching steel frame, 3 hinges, door closer, and either a certified panic push-bar (outward escape) or approved lockset (inward exit).
Frequently Asked Questions
- What is a Class B fire door?
A Class B fire door provides 120 minutes (2 hours) of fire resistance. In South Africa, Class B fire doors are classified to SANS 1253 and tested to SANS 10177-2. This assembly achieved R120/E120/I60 — 120 minutes of structural stability and flame integrity, and 60 minutes of thermal insulation.
- What does R120/E120/I60 mean?
These are the three fire resistance criteria: Stability (R) – the door remains structurally intact for 120 minutes; Integrity (E) – no flames or hot gases pass through for 120 minutes; Insulation (I) – the unexposed face temperature remains within limits for 60 minutes. The E120 result exceeds the minimum Class B requirement of E60.
- Where are Class B fire doors required?
Class B fire doors are typically required in stairwells, lift lobbies, corridors, and between fire compartments in commercial buildings, hotels, hospitals, and multi-storey residential developments. Requirements are governed by SANS 10400-T and your project’s fire strategy.
- Do these fire doors come pre-hung?
Yes. All our Class B fire doors are supplied pre-hung in a mild steel frame with stainless steel hinges, ready for installation. This ensures the door and frame system performs as a tested unit.
- Can I get a custom size?
Yes. Custom sizes are available on request with a lead time of 14–21 working days. Contact us with your opening dimensions to discuss your requirements.
- What finish options are available?
This door is constructed from solid kiln-dried Meranti timber with a natural horizontal slatted finish. It is supplied untreated and can be oiled, stained, or sealed to your preference.
- Can I get the test certificate?
Yes. Certificate FTC 25/099 (FIRELAB cc, valid until December 2030) and full test report FTC 20/199 are available on request.
