The LD2500 delivers agricultural fiber particleboard core technology with 20-minute fire rating and Extra Heavy Duty performance. This FSC-certified, NAUF-compliant door targets commercial projects requiring sustainable material certifications.
Built for institutional buildings — healthcare, education, corporate offices — where fire ratings and green building credits matter. The agfiber core changes the sustainability equation for commercial interiors without sacrificing durability.
Agfiber Core Technology and Environmental Performance
The agricultural fiber particleboard core delivers No Added Urea Formaldehyde (NAUF) compliance while maintaining commercial-grade strength. FSC certification provides LEED credit opportunities — critical for Montana’s growing green building market.
Compared to Lynden’s standard LD2000 wood particleboard core doors, the LD2500’s sustainable agfiber core offers improved environmental performance. The AGFIBER core type represents a shift toward agricultural waste utilization in commercial door manufacturing.
The door meets AWS (Architectural Woodwork Standards) Premium Grade requirements. Available face options include Wood Veneer (PC-5) or High-Pressure Decorative Laminate (HPDL-5) construction. Both maintain the sustainable core benefits while providing aesthetic flexibility for different commercial environments.
Fire Rating and Commercial Construction
The 20-minute neutral pressure fire rating comes with hose stream tested compliance. UL 10B certification and UBC 7 1994 neutral pressure testing provide the documentation commercial projects demand.
| Specification | Value |
|---|---|
| Fire Rating | 20-minute (Neutral Pressure) |
| Performance Standard | WDMA IS-1A Extra Heavy Duty |
| Construction | 5-Ply PC-5 or HPDL-5 |
| Testing Standards | UL 10B, UBC 7 1994 |
| Environmental | FSC-Certified, NAUF |
The Extra Heavy Duty rating under WDMA IS-1A means these doors handle high-traffic institutional use. Fire-rated units must be glazed under label service, with all cutouts and trim openings complying with NFPA 80 and manufacturer’s fire door listing. Machining for hardware happens at the factory to maintain fire rating integrity.
The door supports various internal blocking options (HB-1 through HB-8) for specific hardware reinforcement. Standard commercial door hardware, lites, and louvers maintain compatibility. Factory preparation ensures field modifications don’t compromise the fire rating.
The Verdict
The LD2500 solves the sustainability challenge without sacrificing commercial performance. Agfiber particleboard core with FSC certification and NAUF compliance meets green building requirements increasingly common in Montana institutional projects.
Positioned as a higher-tier alternative in the GREENDOR cost comparison series, the premium reflects genuine performance advantages. 20-minute fire rating with neutral pressure testing satisfies code requirements. Extra Heavy Duty construction handles the abuse commercial doors face.
Limited Lifetime warranty coverage backs the construction quality. Warranty compliance requires following manufacturer’s fire door listing and NFPA 80 standards during installation and glazing.
For Montana commercial projects balancing sustainability requirements with fire codes and durability needs, the LD2500 delivers measurable advantages over standard particleboard core alternatives.
Frequently Asked Questions
What makes the LD2500’s agfiber core different from standard particleboard?
The agricultural fiber particleboard core provides No Added Urea Formaldehyde (NAUF) compliance and FSC certification. This sustainable agfiber core offers improved environmental performance compared to Lynden’s standard LD2000 wood particleboard core doors.
Does the LD2500 require special installation procedures for fire-rated applications?
Fire-rated units must be glazed under label service. All cutouts and trim openings must comply with NFPA 80 and the manufacturer’s fire door listing. Hardware machining is performed at the factory to maintain fire rating integrity.
What warranty coverage does the LD2500 carry?
The LD2500 carries a Limited Lifetime warranty. Warranty requires installation and glazing to follow manufacturer’s fire door listing and NFPA 80 standards.
Can the LD2500 accept standard commercial hardware?
Yes, the door is compatible with standard commercial door hardware, lites, and louvers. It supports various internal blocking options (HB-1 through HB-8) for specific hardware reinforcement.
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