TIP, TRICKS & INFO

Treated Pine Hazard Levels

There are different ratings of treated pine, ranging from Hazard Level Code 1 (H1), the lowest level of treatment, to 6 (H6) which identifies the highest level of treatment.

Ratings below 4 (H4) are not suitable for use in contact with the ground. It is important to realise, that once treated pine is cut, the protective qualities are compromised, therefore cut ends should be treated with a suitable preservative to ensure maximum protection.

Code	Location	Hazard Protection	Typical Uses
H1	Inside, above ground, dry	Insect borer (other than termites) hazard.	Framing, furniture, etc flooring,

H2	Inside, above ground, dry	Insect borer and termite hazard.	Framing, flooring, trusses

H3	Outside, above ground	Moderate fungal decay and termite hazard.	Decking, fencing, cladding, fascia, window joinery, exterior structural timber

H4	Outside, in ground	High fungal decay and termite hazard.	Fencing, greenhouses, pergolas, non-structural and landscaping timbers

H5	Outside, in ground or fresh water	High fungal decay and termite hazard.	Engineered retaining walls, building poles, pilings and cooling tower fill, structural or critical applications

H6	Marine water exposure	Marine borers hazard.	Marine piles, jetty Cross bracing, landing steps, sea walls

TIP, TRICKS & INFO

Treated Pine Hazard Levels

There are different ratings of treated pine, ranging from Hazard Level Code 1 (H1), the lowest level of treatment, to 6 (H6) which identifies the highest level of treatment.

Another handy tip from Coates Mitre 10 Home & Trade Lithgow