Exterior Plywood


Exterior Birch Plywood maintains its performance characteristics under conditions of high humidity and does not deform or soak. Being a water resistant plywood, it can be used in both interior and exterior finish.The hard surface of the exterior plywood offers durability and wear resistance. It is a water resistant plywood and hence is utilized for the internal constructions in the ship. The exterior plywood is also used as a basis for the flexible roofing, floors and ceilings leveling, etc.

Key benefits

  • Higher water resistance
  • Durable and wear resistant plywood
  • Hard surface
  • Resistance to temperature variation: through a range of -40°C to +50°C (-40°F to +122°F)
  • Comes in a variety of thicknesses and sizes


Profile Detail
Standard sizes, length x width, mm (ft) 1525×1525 (5×5) 1220x2440x1220 (4x8x4) 1250x2500x1250 (4x8x4) 1500/1525×2440/2500 (5×8) 2440/2500×1500/1525 (8×5) 1500/1525×3000/3050 (5×10)
Thickness, mm 4-40
Plywood grade I (B, S), II (BB), III (CP), IV (C)
Surface type Outer layers sanded (S2S), one side sanded (S1S), unsanded (NS)
Formaldehyde emission class E1
Waterproofness Higher
Density, kg/m3 640-700
Moisture content, % 5-14
Edge sealing
Plywood is produced under STO 00255177-001-2013 “General purpose plywood with birch face veneers.”*

Strength Specification

Subject Thickness,mm Index
Static bending strength, N/mm2, not less along the outer layer grain 9-40 60
across the outer layer grain 30
Strength in tension along the grain, N/mm2, not less 4-8 30
Modulus of elasticity in static bending, N/mm2, not less along the grain 9-40 6000
across the grain 3000