Cendrex Fire-Rated Insulated Access Door with Exposed Flange, 24in x 24in

Cendrex Fire-Rated Insulated Access Door with Exposed Flange – 24" x 24"

The Cendrex Fire-Rated Insulated Access Door is designed to provide secure, code-compliant access in fire-rated wall and ceiling assemblies. Built with heavy-gauge steel construction, mineral wool insulation, and a durable powder-coated finish, this 24" x 24" access door delivers dependable performance in demanding commercial, institutional, and residential applications.

The exposed 1" flange allows for a clean, surface-mounted installation, while the continuous piano hinge and dual latch options provide reliable operation and easy access. Designed for both vertical and horizontal use, this insulated access panel offers tested fire-resistance performance for a wide range of wall and ceiling conditions.

Key Features

• Fire-rated insulated design: Built with 2" thick fire-rated mineral wool for enhanced thermal and fire protection.
• Heavy-duty steel construction: Features a 20-gauge galvanneal steel door and 16-gauge cold rolled steel frame.
• Exposed flange: 1" cold rolled steel flange provides a clean, finished appearance.
• Continuous piano hinge: Delivers smooth operation and long-term durability.
• Dual locking options: Includes both a self-latching tool-key operated slam latch and a ring-operated slam latch.
• Deep frame profile: 2-1/2" frame depth supports secure installation in rated assemblies.
• Inside release provision: Standard on doors larger than 24" x 24" to allow opening from the interior side.
• Durable finish: High-quality white powder coat primer provides a clean appearance and added protection.

Fire Rating – Vertical Wall Assemblies

• Certifications: UL 10B (2008) (R2020), NFPA 252 (2022), CAN/ULC S104 (2015) (R2020)
• Rating Achieved: 3 hours under neutral/negative pressure
• Temperature Rise: 250°F after 30 minutes and 450°F after 60 minutes

Fire Rating – Horizontal Ceiling Assemblies

• Certifications: ASTM E119 (2020), ASTM E119 (2024), CAN/ULC S101 (2014)
• Rating Achieved: 3 hours in non-combustible construction and 1 hour in combustible construction
• Temperature Rise: Within allowable limits established by ASTM E119 and CAN/ULC S101

Applications

• Fire-rated wall assemblies
• Fire-rated ceiling assemblies
• Commercial and institutional buildings
• Mechanical, electrical, and plumbing access
• Utility and service access points

Specifications

• Door Size: 24" x 24"
• Door Material: 20-gauge galvanneal steel
• Frame Material: 16-gauge cold rolled steel
• Frame Depth: 2-1/2"
• Flange: 1" exposed flange
• Insulation: 2" fire-rated mineral wool
• Hinge: Continuous piano hinge
• Latch: Tool-key operated slam latch and ring-operated slam latch included
• Rough Opening: Door size plus 1/4" or 6 mm
• Finish: White powder coat primer
• Packaging: Individually wrapped, 1 door per box

Installation Note: Hinge placement must be on the second listed dimension, which represents the height.