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What is the difference between OSB 3 and OSB 4 panels?

The main difference between OSB 3 and OSB 4 panels lies in their moisture resistance and applications. OSB 4 offers higher structural resistance in humid conditions compared to OSB 3.

Characteristics of OSB 3:

  • Structural strength in occasional humidity
  • Suitable for standard interior applications
  • Used in rooms with moderate moisture

Characteristics of OSB 4:

  • Reinforced structural strength in permanently humid environments
  • Superior mechanical performance
  • Recommended for very humid environments

For your projects, custom-cut OSB 3 is ideal for standard interior uses such as partitions, flooring, or furniture. The choice between OSB 3 and OSB 4 mainly depends on the level of humidity exposure in your project.