OSB stands for “Oriented Strand Board".
OSB is made from thin veneer strands that are bonded together with a synthetic resin. Greentrend OSB consists of three cross-oriented layers with the surface of the board formed from strands oriented along the length of the board and the core strands arranged in cross orientation. This crosswise orientation of the individual layers achieves a high level of dimensional stability and an excellent mechanical performance.  

Type of OSB
OSB-1: general purpose non-loading boards, and boards for interior fitments for use in dry conditions;
OSB-2: load-bearing boards for use in dry conditions;
OSB-3: load-bearing boards for use in humid conditions;
OSB-4: heavy duty load-bearing boards for use in humid conditions.  

Size: 1220x2440mm, 1250x2500mm
Thickness: 6mm, 8mm, 9mm, 10mm, 11mm, 12mm, 15mm, 18mm, 21mm
Thickness Tolerance: ±0.5mm
Length & Width Tolerance:±3.0mm
Edge Straightness Tolerance:1.5mm/m
Squareness Tolerance: 2.0mm/m
Moisture Content: 4~12%
Formaldehyde Emission: E1, ≤8mg/100mg

Swelling in thickness - 24h immersion: 15%