Robust inna dor 60 steel fire rated steel doorsets

Inna-Dor 60: The New Standard for Internal Safety

The Inna-Dor 60 (FD60) redefines the expectation for standard internal fire doors. While it serves the primary function of preventing fire spread for up to 60 minutes, it is engineered to be much more than just a compliance measure. It is a robust, high-performance doorset designed to act as a durable "door in its own right," offering superior longevity, security, and adaptability compared to traditional timber alternatives.

Beyond Compliance

Fully tested to BS 476 Parts 20 & 22 and BS EN 1634-1, the Inna-Dor 60 provides reliable 1-hour fire protection. However, its true value lies in its construction:

• "Fit and Forget" Durability: Manufactured from corrosion-resistant Magnelis® steel, this door is built to withstand the daily abuse of busy corridors in schools, offices, and hospitals without warping, chipping, or requiring the constant maintenance of wood.
• Acoustic Performance: When specified with a mineral wool core, the Inna-Dor 60 offers excellent sound insulation, making it a dual-purpose solution for meeting rooms and private offices where confidentiality is as important as safety.
• Perfect Fit Guarantee: Every door is made to measure. The unique variable sub-frame allows for -0/+30mm of adjustment, ensuring a precise, gap-free installation even in uneven structural openings.

Customisation Without Compromise

Safety doesn't have to look industrial. The Inna-Dor 60 offers extensive design flexibility to match your interior vision:

• Aesthetic Finishes: Available in a vast range of PPC colours or high-quality PVC woodgrain laminates (such as Ash, Golden Oak, or Mahogany) that perfectly mimic the warmth of timber while retaining steel's strength.
• Vision Panels: Can be fitted with various fire-rated glass configurations, from narrow vision strips to larger glazed panels, maintaining light flow and visibility.
• Hardware Integration: Compatible with a wide array of handles, locks, and access control systems, allowing seamless integration into your building's security ecosystem.

Why Choose Inna-Dor 60?

For most internal applications, 60 minutes is the standard requirement. The Inna-Dor 60 takes this standard and elevates it with industrial-grade engineering, offering a "whole life" cost that significantly outperforms timber doors in high-traffic environments. It is the smart investment for buildings where reliability and low maintenance are key priorities.

Internal FD60 fire rated steel doorset  for use in multiple applications - commercial, industrial or domestic. The only variation to make it applicable to an enviroment is the change of colour, finish and furniture used, albeit it has to be within the parameters of the fire testing.

This product is associated with the following NBS clauses:
L20 Doors/ shutters/ hatches
480 DOORSETS

Specification: Inna-Dor 60

The Inna-Dor 60 is the foundational model in the Inna-Dor range, providing 60 minutes of certified fire protection. It is available in three versions (Inna-Dor 60, 120, and 240), but this specification focuses on the FD60 variant.

Door Leaf Production Sizes

All fire-resistant doors are custom made. NB: Sizes quoted may exceed manufacturing limitations. The maximum size varies according to the specific fire rating as shown below.

Construction Details

• Leaf Thickness: 54mm
• Material: 1.2mm corrosion-resistant Magnelis® steel sheets as standard, offering superior longevity compared to galvanised steel.
• Core Infill:
  • Standard: Self-supporting resin-impregnated honeycomb core.
  • Optional: Mineral wool infill for enhanced thermal and acoustic insulation (recommended for office/classroom use).
• Construction Method: Non-welded construction from two skins of Magnelis® folded around a rigid core for maximum durability.

Door Frame

• Material: Folded from 1.5mm Magnelis® steel.
• Profile: Single rebate 95mm wide frame (standard). Available in Types A & B for Inward & Outward opening configurations.
• Installation System:
  • Screw and tab construction with 4 no. adjustable fixing feet per jamb.
  • Variable Sub-Frame: Supplied as standard to accommodate site tolerances of -0/+30mm, eliminating the need for shims.
• Hardware: Frame is fitted with 3 no. Class 13 stainless steel hinges with 2 no. dog bolts for security.

Performance & Options

• Fire Rating: Up to 60 minutes (FD60) certified to BS 476 Parts 20 & 22 and BS EN 1634-1.
• Thermal Performance: Frame thermal conductivity of 3.1W/m²k (hollow frame).
• Vision Panels: Permitted glazing sizes up to 0.8m² per leaf (subject to configuration).
• Louvre Panels: Fire-rated louvres available up to 610mm x 610mm.

Installation & Assembly

Our Robust steel doorsets are engineered to minimize on-site labour and eliminate the common headaches associated with traditional door installation. Every unit is designed with a "Single Fix" philosophy, meaning the door is supplied as a complete, ready-to-fit system rather than a collection of parts.

Pre-Assembled Convenience

Unlike timber doors that require separate frame assembly, hanging, and hardware fitting, our steel doorsets arrive fully factory assembled. This means:

• Pre-Hung Leaf: The door leaf is already mounted within the frame on high-performance stainless steel hinges.
• Hardware Fitted: Locks, panic bars, and closers are pre-installed and tested in our factory, ensuring perfect alignment and operation out of the box.
• Reduced Downtime: This "plug-and-play" approach drastically cuts installation time, allowing a typical single door to be fitted in less than 60 minutes by a competent installer.

Adjustable Frame System

We understand that structural openings are rarely perfect. Our unique installation system is designed to handle real-world site conditions without the need for excessive shimming or packing:

• Variable Sub-Frame: The frame features an adjustable profile that can accommodate wall tolerance variances of -0mm to +30mm. This ensures a secure fit even in uneven openings.
• Adjustable Fixing Feet: Each jamb is fitted with 4 adjustable fixing feet (8 per doorset). These allow installers to quickly level the frame and secure it firmly into the aperture using the provided 12mm Allen key.
• No Shims Required: The integrated adjustment system removes the need for fiddly packers, creating a cleaner, more solid fixing point directly into the substrate.

Installation Kit Included

To further simplify the process, every doorset comes with a comprehensive installation kit containing:

• 12mm Allen Key: For rapid adjustment of the fixing feet.
• Touch-Up Paint: Matched to your door's colour for covering any minor installation marks.
• Clear Mastic: For weather-sealing external perimeters (where applicable).
• Drill Bits: Specialist bits suitable for concrete or steel fixing, ensuring you have the right tools for the job.

Warranty and Maintenance

Our commitment to quality is backed by comprehensive warranty terms designed to give you peace of mind. The specific coverage depends on the materials used and the installation environment.

Anti-Corrosion Warranty

We offer industry-leading anti-corrosion protection based on the base material and location classification:

• Magnelis® Steel Doors:
  • 10-Year Warranty: For locations classified as C1 to C3 (low to medium pollution/humidity).
  • 5-Year Warranty: For locations classified as C4 (high pollution/industrial/coastal).
  • 3-Year Warranty: For locations classified as C5 (very high pollution/marine).
• Aluzinc Steel Doors:
  • 24-Month Warranty: Standard coverage.
  • Extended Warranty: Available if an enhanced Polyester Powder Coated (PPC) finish is requested and applied.

Please Note: The anti-corrosion warranty applies specifically to the door leaf. Components not manufactured from Magnelis® (such as vision panels, louvre panels, etc.) are excluded unless we are notified prior to quotation and manufacturing, allowing us to offer additional protection for these parts.

Manufacturing Warranty

• All Doorsets: Carry a 24-month warranty against manufacturing defects.

Condition of Warranty

To maintain the validity of all warranties, site maintenance must be carried out at regular intervals as outlined in the Operation & Maintenance (O&M) manual provided with your product.