JAS Larch Structure Plywood

JAS Larch Structure Plywood
Product Introduction:
We produce JAS Larch Structure Plywood for structural use in roofing, flooring, and wall systems, with consistent strength and moisture resistance adapted to Japanese construction requirements.
Wooden Species: Larch
Standard Size: 910×1820mm (5 ply), 12×910×1820 (5 ply), 24×910×1820 (9 ply)
Certification: JAS – Special Class 2
Adhesive: Phenolic / F4S (F☆☆☆☆)
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Description
Technical Parameters

JAS Larch Structure Plywood

In structural applications, plywood performance is often affected by uneven strength distribution, dimensional movement under humidity, and bonding failure over time.
We address these points by selecting larch veneers with aligned grain direction to improve structural consistency.
Phenolic bonding is applied under controlled pressure and temperature to limit water penetration and maintain bonding integrity.
Layer configuration and pressing cycles are adjusted to stabilize thickness and reduce internal stress.
This structure allows the panel to perform in roofing decks, subfloor systems, and wall sheathing where dimensional stability and predictable load response are required, especially under Japan's humidity conditions.

product-1000-1000

 

Key Features

1

Consistent structural strength across panels

5

Improved resistance to moisture exposure

2

Larch veneer supports better mechanical performance

3

Manufactured to JAS structural requirements

4

Controlled emission level F☆☆☆☆
Suitable for load-bearing construction parts

6

Product Details

 

product-500-614
product-500-614
product-500-614
product-500-614
product-500-614

Product Specification

Species Larch
Type Structural plywood
Size 910×1820mm
Thickness 9mm / 12mm / 24mm
Layers 5 ply / 9 ply
Glue Phenolic / F4S
Certification JAS Special Class 2
Moisture Content 10% ±2%
Formaldehyde F☆☆☆☆
Usage Roofing / Flooring / Wall
Packing Export pallet packing
Loading Standard container loading

 

Application

product-500-500
product-500-500
product-500-500
product-500-500
product-500-500

 

FAQ

Does this panel meet Japan structural requirements?

Production follows JAS Special Class 2 specification

How does it perform under humid climate?

Bonding system and pressing control help limit moisture impact

Can panel structure be adjusted?

Layer count and thickness can be arranged based on demand

What ensures bonding durability?

Phenolic resin and controlled hot pressing process

How is the product prepared for shipment?

Panels are palletized and fixed for container transportation

 

 

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