Arborite® High Pressure Decorative Laminate 90 minute mineral core commercial wood doors are fire rated doors designed to provide extended fire protection in commercial and institutional buildings. Built with non-combustible mineral cores made from gypsum and fire-resistant materials, these commercial wood doors are reinforced with fire-rated stiles and rails and finished with veneer, HDF, or laminate faces to maintain an architectural appearance.

These fire rated commercial wood doors are commonly used in office buildings, hospitals, schools, airports, data centers, and government facilities. Typical applications include stairwells, elevator lobbies, mechanical and electrical rooms, service corridors, and fire barrier walls requiring higher fire protection.

90 minute fire rated wood doors help protect vertical exits, critical infrastructure, and high-risk areas. Compatible with commercial hardware and available with factory finishes, mineral core doors provide essential code-compliant life safety protection for demanding commercial environments.

General Description

• Architectural 5-ply mineral core commercial wood door
• 90-minute fire rated (Positive Pressure Category B, B Label)
• Bonded core construction
• Grade A hardwood veneer or plastic laminate faces
• Listed by Warnock Hersey International (WHI)
• Designed for openings requiring a 90-minute fire barrier

Product Features & Specifications

• Maximum single door size: 4’0″ x 9’0″
• Maximum pair or double egress: 8’0″ x 8’0″
• Sizes may vary depending on hardware requirements
• Concealed intumescent seals available at meeting stiles

Door Construction

• Thickness: 1-3/4″
• Core: Mineral core
• Crossband construction with face veneer

Stiles and Rails

• Stiles: 1″ Georgia Pacific Firestop at hinge and latch locations
• Rails: 1-1/2″ top rail and 1″ bottom rail (Georgia Pacific Firestop)
• Stile and rail dimensions may vary based on hardware requirements

Door Faces

• Premium Grade 5-ply hardwood veneers
• High density fiberboard (HDF) options
• High pressure decorative laminate (HPDL) options

Adhesives

• Type-II interior adhesive

Lites and Louvers

• Vision lites must be at least 6″ from any door edge
• Viewers up to 1″ diameter allowed
• Maximum visible glass size: 10″ x 33″
• Larger glass sizes possible with specialty fire-rated glazing

Fusible Link Louvers

• Maximum area: 1140 sq. in. within lower 40″ of doorLifetime warranty (per manufacturer terms)
• Maximum size: 30″ x 38″
• Minimum 5″ from door edge or hardware prep
• Minimum 10″ from door bottom
• Not allowed in doors with fire exit hardware or vision panels

Machining & Preparation

• Must be factory machined for specified hardware
• Field prefitting allowed by licensed WHI dealer or distributor
• Metal edges allowed only if no concealed intumescent is required

Finishing Options

• Available unfinished or factory finished
• Water-borne UV finish available
• Meets WDMA/AWI TR-6 standards
• EPA and CARB compliant

Warranty

• Lifetime warranty (per manufacturer terms)”