Timber treatment grades

Timber Treatment

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:

Timber Treatment Grades
H3.2H3.2 -  Periodic wetting, not in ground contact
H4H4 - Ground contact, or conditions of continuous or severe wetting
H5H5 -  As above where a higher level of protection is required
H6H6 - Immersion in sea water or estuarine ground