Timber Landscaping

Timber for Landscaping Accoya Wood BridgeTimber for Landscaping

One of the most important things for Landscaping is Durability. Check out our Learning Centre, and take a look at the Durability page. This explains how durability is measured. We have listed all our Durable and Very Durable timbers in the table below, grouped by colour.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 need to be removed prior to use or it will eventually rot.

Coatings

All timber, if left outside un coated, 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, we go into each product in more details on our Coatings page

Timber for Landscaping

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 put the effort in to maintain the coating.  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.coa

Sustainability

Another buzz word that is becoming more and more common with Landscape Architects is sustainability.  Read both our Sustainability and Resource Certification pages in the Learning Centre if you are keen to learn more.

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
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Macrocarpa

COMMON APPLICATIONS
Decking
Decking
Decking
Decking
Decking
Decking

A low to medium density softwood, originally from California and introduced to NZ in the mid 1800’s, planted mostly as shelterbelts. The heartwood is moderately durable, and is light golden brown in colour.

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Botanical Name: Cupressus macrocarpa
Origin: New Zealand

General

Seasoning: The timber needs to be air dried well before kiln drying to avoid collapse and internal checking.
Uses: Typical uses include T&G panelling, exposed beams and rafters, and landscaping applications including large end section pergolas.
Price (1-10): 3

Availability

Availability: Available ex-stock in sizes ranging from 100x25 to 200x50mm.
Stocked: Yes

Durability

Durability In Ground: Perishable/Non Durable
Durability Above Ground: Moderately Durable

Density

Density Air Dry: 485 kg/m2

Shrinkage

Shrinkage Radial: 1.6 %
Shrinkage Tangental: 3.3 %

Stability

Stability Kiln Dry: Stable
Stability Green: Prone to shrinkage and distortion

Mechanical Properties

Janka Hardness: 2.8 kN
Modulus of Rupture: 78.4 MPa
Modulus of Elasticity: 7.6 GPa

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

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