Blue Staircase Fire-Rated Door

NEXA Blue Stairwell Fire-Rated Door | Certified Safety with Modern Design

The NEXA Blue Fire-Rated Stairwell Door combines exceptional fire resistance, attractive design, and affordable pricing, making it one of the most practical and popular options in its category.
This model is fully certified and approved by the Fire Department, with 240-minute fire resistance, Efectis Turkey laboratory test reports, and a technical certificate from the Iranian Building and Housing Research Center (BHRC).

The handle and panic bar colors can be customized to your preference, and the door color can also be selected based on your project design palette.
The standard color code for this model is RAL 5010 (Deep Blue), providing a clean, distinctive look suitable for modern stairwell areas.

Structure and Frame Composition

Door Leaf:

• Made of galvanized steel sheet, thickness 1.0 mm

• Reinforced with integrated structural framework for increased mechanical strength

Frame:

• Constructed from galvanized steel, thickness 1.25 mm

• Fully welded, ensuring rigidity and long-term durability

Core Insulation:

• IzoCell 505 advanced nano-engineered fire insulation with cellular structure

• Includes SABIC thixotropic fire-retardant resin

• Internal reinforcement frame to prevent torsion and bending

• Dual steel plate reinforcement behind handle, panic bar, and hinge areas for maximum stability

Hinges and Connections

• Equipped with three heavy-duty, three-part cylindrical steel hinges — the same grade used in fire safes

• Fully welded connections to the frame

• Enhanced hinge-side reinforcement to resist mechanical stress and deformation

Surface Preparation and Coating

Before painting, all steel components undergo:

• Grinding, degreasing, and acid washing to improve adhesion and corrosion resistance

Paint Type:

• Electrostatic powder coating, baked at controlled temperature

• 80-micron coating thickness for uniform finish

• Applied using conveyor (rail) curing technology for even distribution

• Custom RAL colors available upon request

Seals and Fireproof Components

• Intumescent fire and smoke seals, certified by the Fire Department

• Expands up to 500% during fire exposure to block smoke and flames

• One-piece steel threshold with integrated smoke barrier

• Plastic end caps (8 pcs) for aesthetic finishing of installation points

Door Closer

• Two-speed hydraulic overhead door closer (China-made)

• Dual adjustment valves for independent speed control in two motion stages

• Ensures smooth and safe closing under all conditions

Symmetrical Design and Reversible Opening

This model is symmetrically designed, allowing for both left-hand and right-hand installation with the same structure.
All hardware — including hinges, locks, and handles — are dual-directional, ensuring full reversibility and simplified on-site installation.