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The 2440 × 1220 × 18 mm OSB 3 Board is a strong, heavy-duty engineered wood panel designed for structural and load-bearing applications in humid and protected external environments. Manufactured from oriented strands of softwood bonded with moisture-resistant resins, OSB 3 delivers excellent strength, stiffness and durability for demanding construction uses.
With its standard 8 × 4 ft sheet size and 18 mm thickness, this OSB 3 board is ideal where increased load-bearing capacity and rigidity are required, making it a popular choice for flooring, roofing and structural sheathing.
Structural OSB 3 board to EN 300
Sheet size: 2440 × 1220 mm (8 × 4 ft)
Thickness: 18 mm
High strength and rigidity
Moisture-resistant for use in humid conditions
Consistent quality and dimensional stability
Structural flooring and decking (when correctly specified)
Roofing and wall sheathing
Timber frame construction and bracing
Site hoardings and temporary works
General construction and refurbishment projects
Excellent load-bearing performance for structural use
Can be cut, drilled and fixed using standard woodworking tools
Suitable for painting or sealing if required
Appropriate for internal use and humid or protected external environments
Product Type: Oriented Strand Board (OSB 3)
Standard: EN 300
Sheet Size: 2440 × 1220 mm
Use Class: Structural, internal or humid/protected external applications
The 2440 × 1220 × 18 mm OSB 3 Board provides a robust, cost-effective structural solution where greater thickness, strength and durability are required. Selected for consistent quality and reliable performance, it is trusted by builders and contractors for flooring, roofing and structural applications.
