Gunns Timber Products offers a range of CCA treated Pine products, kiln dried after treatement for use in external applications.

Treatment Guarantee
CCA treated pine is guaranteed by the preservative treatment supplier for up to 50 years. Click here to download the guarantee

Range
F7 Microline Beams and Dressed All Round kiln dried after treatement for increased stability and are graded for use in structural applications.
Sizes
140x35mm
140x45mm
190x35mm
190x45mm
240x35mm
240x45mm
290x45mm
Available in lengths 3.0 to 6.0m in 600mm increments.

F7 Microline Posts and Dressed All Round Posts kiln dried after treatement for increased stability. Treated to H4 for in ground applications.
Size
90x90mm
Available in lengths 2.1 to 6.0 metres in 300mm increments.

Treated Framing kiln dried after treatement for increased stability.
Sizes
70x35mm
90x35mm
70x45mm
90x45mm
Available in lengths 2.4 to 6.0 metres. Available in dressed or microline finish.

Decking available kiln dried after treatement or wet after treatement.
Sizes
70x22mm
90x22mm
Available in lengths 1.8 to 6.0 metres in 300mm increments.

CCA Treated Products
Do not burn CCA treated timber, off-cuts or waste as toxic fumes or residues may be produced.

CCA Treatement is an added bonus for users of Gunns Timber Products products. Once treated with CCA the timber can withstand conditions where damp, fungi or insects would quickly destroy untreated timber.

CCa Stands for Chromated Copper Arsenate, is a preservative added to specific GTP products under strictly controlled conditions of vaccum pressure. It is the CCA preservative treatement that gives treated timber its characteristic green colour.

It eventually fades to an attractive silver-grey. Surface protection is recommended for all treated pine products where appearance is important.

There are six "Hazard Classes" of CCA preservative treatement. The intensity of treatement relates directly to the conditions the timber will be expected to encounter, H1 being the least protected and H6 being the highest treatement level.

TREATED TIMBER HAZARD LEVEL GUIDE
H1  - Inside, above ground, dry
       - Insect borer (other than termites) hazard
H2  - Inside, above ground, dry
       - Insect borer and termite hazard
       - Framing, flooring, trusses
H3  - Outside, above ground
       - Moderate fungal decay and termite hazard
       - Decking, encing cladding, fascia, window joinery, exterior strucural 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, structral or critical applications
H6  - Marine water exposure
       - Marine Borers hazard
       - Marine piles, jetty cross-bracing, landscaping steps, seawalls

Click here to download the PDF version of the Hazard Level Guide (325KB)

Note: The specifier or designer should ensure that the treated timber used is specific to the correct hazard level. Using treated timber in a higher hazard level than that it is intended for may result in premature failure. Note that the hazard level of treatement is not related to the stress grade or other engineering properties of the timber.

Click here to download the 'frequently asked questions' brochure

FOR FURTHER INFORMATION ON SAFETY AND HANDLING ALONG WITH CHEMICAL INFORMATION PLEASE REFER TO THE TECHNICAL PAGE OF THIS SITE.