Products Description
PRODUCT DETAILS:
|
Product Name |
Reinforced LVL Liner Board |
|
Material |
New Zealand radiata pine, Russian larch, etc. |
|
Length |
Up to 8.5 meters long Customized |
|
Width |
90mm to 400mm Customized |
|
Thickness |
35mm to 75mm Customized |
|
Surface treatment |
Double-sided polishing / Anti-slip treatment, Customized Support |
|
Certification Standards |
Complies with Australian and New Zealand Standards AS/NZS 4357.0. |
|
Formaldehyde Emission |
Poplar products use E0 glue, while the rest use phenolic resin glue. |
|
Design Style |
Modern |
|
Feature |
water resistant, Anti-Corrosion, Eco-Friendly |
High-density LVL (Laminated Veneer Lumber) inserts fill the hollow cavities within door frames to enhance screw-holding power, effectively addressing common post-sales issues such as loose hinges, door sagging, and squeaking.

01
Cavity reinforcement for interior door sets, strengthening load-bearing capacity at hinge mounting points;
02
Bulk application for residential projects to reduce rework rates caused by door sagging;
03
Internal reinforcement backing for door frames in hotels, guesthouses, and export-oriented wooden doors.
Key Performance Advantages
The core selling points are superior screw-holding power and resistance to moisture-induced deformation, combined with suitability for streamlined cutting and processing in wooden door manufacturing.
Excellent Screw-Holding Power
Continuous long wood fibers ensure a firm grip, preventing screw pull-out during long-term use;
High Stability
Uniform moisture content minimizes the risk of swelling or warping in door frames;
Reduced Noise
Filling the cavity minimizes hollow resonance, resulting in quieter door operation;
Versatile Profile
Thin-board specifications make it compatible with various narrow door frame cavities.

Customizable Specifications
These narrow-strip boards are sized to fit the vast majority of door frame cavities and can be cut to specific dimensions by wooden door manufacturers.
- Thickness: 12–40 mm; Width: 50–120 mm;
- Length: 1.8–2.5 meters;
- Ends can be sanded flush; cut to order-specific lengths.
Applicable Industries and Projects
Supplied specifically to wooden door manufacturers, covering diverse product lines such as residential doors, project-grade doors, hotel guest room doors, and export-oriented wooden doors.
- Backing boards for interior door sets and residential entry door frames;
- Components for large-scale real estate wooden door projects;
- Doors for hotels and guesthouses; processing facilities for custom whole-home door frames.
Advantages of LVL Door Frame Backing Boards vs. Particleboard and Chipboard Fillers
Compared to particleboard or chipboard fillers, LVL backing boards offer superior screw-holding power and greater resistance to moisture-induced deformation, resulting in a lower failure rate for wooden doors.
- Continuous fiber structure: Long wood fibers prevent screws from tearing the board material;
- High moisture stability: Swelling due to moisture is significantly lower than that of particleboard;
- Reduced after-sales issues: Hinges are less prone to loosening or sagging, drastically lowering after-sales maintenance costs.
Installation and Storage Guidelines
Store in a moisture-proof environment, seal edges promptly after cutting, and position backing boards precisely at hinge points for optimal reinforcement.
- Store in a well-ventilated, dry warehouse, isolated from ground moisture;
- Seal cut edges promptly to minimize moisture absorption;
- Align backing boards precisely with hinge installation points for maximum reinforcement.

FAQ
Q. If your company is reliable ?
A: Founded in 2009,company covers an area of 52,000 square meters,more than 300 employees, including nearly 20 scientific researchers.Powerful LVL manufacture in China.
Q.How long is your delivery time?
A: For full container, factory lead time About 20~35 days.
Q: what's your payment terms and trade terms?
A: Accepted Delivery Terms: FOB, CFR, CIF, CIP, FCA, CPT, Express Delivery, DAF.
Q: How can you promise quality
A: It complies with the Australian and New Zealand standards AS/NZS 4357.0. Some products have passed JAS-ANZ certification, and the formaldehyde emission level reaches E0 level certification, FSC certification can also be provided.
Q:How about the shipping fees?
A: For large quantities of products, ocean freight is usually the best option. The price of ocean freight depends on the destination port and the current ocean freight rates. Please contact us and we will provide you with a better quote based on the actual situation.
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