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OSB vs plywood: which is better

Sheet materials for subfloors, frame sheathing and formwork — compared by strength, moisture resistance and price per square metre.

OSB OSB16 $/m² Plywood Plywood24 $/m²

Key differences

  • OSB is roughly 33% cheaper (16 $/m² vs 24 $/m²).

Specifications side by side

Property OSB Plywood
Average price (United States) 16 $/m² 24 $/m²
Thermal conductivity0.13 W/(m·K)0.15 W/(m·K)
Density650 kg/m³600 kg/m³
CombustibilityCombustibleCombustible

Typical reference values (SP 50.13330 / GOST); the actual figures depend on the manufacturer and grade.

Where each one fits

OSB
Sheathing frame walls, roof decks and subfloors of houses.
Plywood
Subfloors, wall sheathing and formwork in house construction.
Estimate both on your plan

Other comparisons

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