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

Check Also

h20 Beam for Concrete inspections and QC checklists

h20 Beam for Concrete inspections and QC checklists The formwork beam H20 is mainly used …

Leave a Reply

Your email address will not be published. Required fields are marked *