Composite GRP Fire Doors - GRP Composite Doors

A Durable, Low-Maintenance GRP Fire Door System for Internal Residential and Public Sector Use

The BS 476 Internal GRP Fire Door from Permadoor is a high-performance composite door system designed to provide 30-minute fire resistance in accordance with BS 476 Part 22. Engineered for internal use in residential and public sector buildings, it combines robust GRP construction with a high-density core to deliver fire protection, security, and long-term durability.

Manufactured in the UK, the system is ideal for social housing, care homes, and multi-residential buildings where fire safety, low maintenance, and regulatory compliance are essential.

Design & Aesthetic Excellence

The door is available in a range of styles and finishes to suit internal applications across a variety of building types. It offers a clean, professional appearance with options to match surrounding décor.

• Available in solid and glazed configurations
• Smooth or woodgrain-effect GRP finishes
• Wide range of colour options
• Compatible with side panels and fanlights
• Low threshold options for accessibility
• Designed for internal use in communal areas and corridors

This flexibility allows the door to integrate seamlessly into both traditional and modern interiors.

Thermal Performance & Energy Efficiency

While primarily designed for fire protection, the door also contributes to improved thermal performance in internal environments.

• High-density core for insulation and fire resistance
• Sealed construction to reduce heat transfer
• Supports energy efficiency in communal areas
• Helps maintain consistent internal temperatures

Security & Compliance

The BS 476 Internal GRP Fire Door is tested to meet key fire safety and security standards, making it suitable for use in regulated environments.

• Tested to BS 476 Part 22 for 30-minute fire resistance (FD30)
• Compliant with PAS 24:2016 (when specified with appropriate hardware)
• Secured by Design compliant (subject to specification)
• Compatible with fire-rated hardware and closers
• Compliant with Approved Documents B (Fire Safety), Q (Security), and M (Access)

This ensures the door meets the safety and regulatory requirements of residential and public sector buildings.

Durability & Low Maintenance

Constructed from glass-reinforced plastic (GRP), the door is designed to withstand frequent use in high-traffic environments while requiring minimal upkeep.

• GRP skin resists dents, scratches, and moisture
• Colour-stable and UV-resistant finishes
• Easy to clean and maintain
• Long service life with minimal maintenance
• Backed by manufacturer warranties

This makes it ideal for communal areas, corridors, and internal entrances in multi-residential buildings.

Construction & Configuration

• GRP composite door leaf with high-density fire-rated core
• PVC-U or composite outer frame
• 44 mm door thickness
• Available in solid or glazed options
• Compatible with fire-rated hardware and closers
• Supplied as a complete doorset for assured performance

This ensures consistent quality and compliance across all installations.

Sustainability

The BS 476 Internal GRP Fire Door supports sustainable construction through long service life, low maintenance, and responsible manufacturing.

• Manufactured in the UK to ISO 14001 environmental standards
• Long lifespan reduces need for replacement
• Fully recyclable frame components
• Supports BREEAM and other sustainability targets

Applications

The BS 476 Internal GRP Fire Door is suitable for:

• Social housing and affordable housing schemes
• Local authority and housing association properties
• Internal communal areas and corridors
• Care homes and assisted living facilities
• Multi-residential buildings and apartment blocks
• Public sector buildings such as schools and healthcare facilities

Digital Specification Support

To support digital workflows and specification platforms, the BS 476 Internal GRP Fire Door is available with:

• NBS Chorus-compatible specification data
• BIM object availability (Revit, IFC, DWG)
• COBie-compliant data
• Full technical documentation including datasheets, test reports, and installation guides

Why Specify the BS 476 Internal GRP Fire Door?

• 30-minute fire resistance tested to BS 476 Part 22
• Durable GRP construction with low maintenance requirements
• PAS 24 and Secured by Design compliant (subject to specification)
• Suitable for high-traffic internal applications
• Wide range of colours and finishes
• Supplied as a complete doorset for assured performance
• Backed by Permadoor’s technical support and warranties