OSB/4 is a high-performance, engineered wood panel suitable for demanding structural applications, particularly in humid and high-load conditions, offering enhanced strength and moisture resistance in comparison to OSB/3.
OSB/4
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Typical Applications
- Roof decking
- Roof sarking
- Wall sheathing
- Flooring
- Packaging
- Site Hoarding
- Signboards
- Portable Buildings
Applicable Standards
- BS EN 300 – OSB Definition, classification and specification
Environment
Hanson Plywood sources OSB/4 from FSC® Certified forest concessions from the UK and Republic of Ireland. The company’s robust Chain of Custody management system ensures that these certifications are respected and adhered to throughout the supply chain. For further information, please refer to our Environment Page.
Downloads & Links
Quick Reference Guide - OSB
Type
Application & Climatic Conditions
Use Class (EN 335)
OSB/1
Non-Structural, interior fitments including furniture
Use Class 1
OSB/2
Internal, structural applications
Use Class 1
OSB/3
Structural applications similar to those listed above, however OSB/3 is is suitable for use in humid conditions
Use Class 1 & 2
OSB/4
Heavy-duty structural applications in humid conditions
Use Class 1 & 2
Size
18mm
2440mm x 1220mm
