As a Timber Preservation Council registered site, Rapaura Timber undergoes regular inspection and testing to ensure that treatment processes comply with environmental and health and safety standards, and that treated timber meets quality standards.
Treatment grades include:
|H3.2 - Periodic wetting, not in ground contact|
|H4 - Ground contact, or conditions of continuous or severe wetting|
|H5 - As above where a higher level of protection is required|
|H6 - Immersion in sea water or estuarine ground|