Oriented strand board (OSB) inspections and grades 

Oriented strand board (OSB) inspections and grades

OSB – oriented strand board. These are made from several layers of wood strands covered with advanced technology resins and compressed in a hot press. These boards are used in the construction of frame houses, roofing (under bituminous tiles), laying a floor (under parquet, carpeting and PVC coatings), installing temporary premises, in the manufacture of furniture, interior decoration.
Physical – mechanical properties
Thickness tolerances ±0.8 mm
Width and length tolerances ±3 mm
Angle tolerance ±1.5 mm/1m
Edge straightness ±2 mm/1m
OSB – Oriented Strand Board. These are made from several layers of wood strands covered with advanced technology resins and compressed in a hot press.These boards are used in the construction of frame houses, roofing (under bituminous tiles), laying a floor (under parquet, carpeting and PVC coatings), installing temporary premises, in the manufacture of furniture, interior decoration.
Physical – mechanical properties
Thickness tolerances ±0.8 mm
Width and length tolerances ±3 mm
Angle tolerance ±1.5 mm/1m
Edge straightness ±2 mm/1m
Elasticity modulus in parallel direction >6000 N/mm2
Elasticity modulus in perpendicular direction >2500 N/mm2
Stiffness in parallel direction >35 N/mm2
Stiffness in perpendicular direction >17 N/mm2
Resistance to stretch >0.75 N/mm2
Formaldehydes <8 mg/100g
Thickness swelling within 24 hours >12%
Sizes :
2500×1250 (SE) – with flat edges. Thickness : 6; 8; 10; 12; 15; 18; 22; 25 mm
2500×625 (T&G4) – with groove on four sides. Thickness: 12; 15; 18; 22; 25 mm
Other possible sizes :
5000×1250
3000×1250
2800×1250
2650×1250

Non-standard sizes are manufactured on special orders

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