Timber Landscaping

Timber for Landscaping Accoya Wood BridgeTimber for Landscaping

One of the most important things for Landscaping is Durability. We have listed out different types of timbers and their character, grouped by colour below. It is worth noting that sapwood is not durable at all when talking about the durability, we are referring to the heartwood. Occasionally some boards will have a small amount of sap on the edge and this will either needed to be removed prior to use or it will eventually rot.


All timber, if left outside uncoated, will naturally turn a silvery-grey colour. This is a natural process as the outer layers of the timber cellulose get exposed to the weather.  

The timber will also, split, check and warp, but depending on the species this may not be too noticeable.  One way to reduce weathering and distorting of timber is to coat it with a protective product, Refer to our Coatings page for outdoors.

One of the main things to consider when trying to decide whether to coat your timber or leave it to weather naturally is, if you are willing to maintain periodically.  All exterior coatings will need maintenance on an annual basis (usually just a good clean), and they will require recoating every 6 months to 5 years, depending on the coating and its exposure to the elements.

Timbers Suitable for Exterior Use

Colour Timber Durability
Yellow Yellow Cedar Very Durable
Yellow / Light reddish-brown Balau Durable
Golden yellow / Light brown Macrocarpa Moderately Durable above ground
Golden yellow / Light brown Oregon Moderately Durable
Golden yellow / Light brown Totra Very Durable
Light Pink Taun Moderately Durable
Pink Saligna Durable above ground
Pink / Light brown Cedrela Durable
Light brown Sapele Mahogany Durable
Light brown Vitext Durable
Light brown Western Red Cedar Durable
Straw brown Pilularis (Black Butt) Durable
Medium brown Teak Very Durable
Grey to Reddish/dark brown Spotted Gum Durable
Yellow, fading to Dark brown Iroko Durable
Red, fading to Dark Brown Bubinga Durable
Red/Redish-brown, fading to Dark Brown Jarrah Durable
Red/Redish-brown, fading to Dark Brown Padauk Durable
Red/Redish-brown, fading to Dark Brown Rosewood Very Durable
Red/Redish-brown / Dark Brown Kwila Durable



Durability like no other wood, 50 years above ground, 25 years in-ground!

Accoya® wood is Class 1 durable, which is comparable or better than the durability of hardwoods such as Jarrah, Rosewood, and Teak. Accoya® wood is also FSC certified and has class leading environmental credentials such as Cradle to Cradle™ Gold certification by the highly prestigious McDonough Braungart Design Chemistry (MBDC) organization.

Great for decks, windows, doors, cladding and more

Accoya® wood is perfect for demanding applications such as windows and doors, where it is important that tolerances are tight, yet regardless of the conditions, they open year round. Recent tests show that Accoya® wood is perfect for coated cladding where reduced maintenance is required, even with wood stains and dark colours. In decking, where it is important that boards do not warp, twist, bow split, Accoya® is up to the challenge.

New Zealand Herald

Read the article on Accoya in the New Zealand Herald here.

Certifications/ Labels Acquired

FSC Cradle to Cradle   Declare Label by the Living Building Institute
 FSC  Cradle to Cradle Gold  Declare Label by the Living Building Institute


See more certifications here.

Accoya Videos

What is Accoya? Click here...

The science of Accoya - Innovation in wood. Click here...

Outstanding Durability of Accoya. Click here...

Technical Information Sheet

Download information on Accoya on our downloads page


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Botanical Name: Pinus Radiata
Origin: New Zealand


Certifications Available::
Treatability: Accoya wood is already Class 1 durable (comparable or better than the durability of hardwoods such as Jarrah, Rosewood and Teak) so no further treatments are needed. Plus Accoya wood is non-toxic and doesn't leech harmful chemicals.
Uses: Limitless! The acetylation process makes pine super durable, super stable and retians all the strength of pine. This makes it an excellent choice for any situation that is starting to push the boundaries of other timbers.
Price (1-10): 5


Stocked: Yes
Grade Description: A1 grade. A European grade simlar to #1 clears but it does allow a few minor defects.


Resource Certification: FSC Certified | New Zealand Grown/MPI


Durability In Ground: Very Durable
Durability Above Ground: Very Durable
Turning (1-10): 8
Dimension Stability (1-10): 10
Cross Cutting (1-10): 8
Shaping & Sanding (1-10): 8
Gluing (1-10): 8
Planing & Moulding (1-10): 10


Density Air Dry: 512 kg/m3


Shrinkage Radial: 0.4 %
Shrinkage Tangental: 0.8 %


Stability Kiln Dry: Extremely Stable

Mechanical Properties

Janka Hardness: 4.1 kN
Modulus of Rupture: 39 MPa
Modulus of Elasticity: 8.8 GPa

Phone our sales team on (09) 620-0260 or Email us anytime, we'd be happy to help.


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