OSB vs plywood: which is better
Sheet materials for subfloors, frame sheathing and formwork — compared by strength, moisture resistance and price per square metre.
OSB16 $/m²
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 conductivity | 0.13 W/(m·K) | 0.15 W/(m·K) |
| Density | 650 kg/m³ | 600 kg/m³ |
| Combustibility | Combustible | Combustible |
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.