Karri is moderately durable, with a reputation of being termite-prone, however not nearly as prone as pine.
Spotted gum, like jarrah and blackbutt, is a good choice for bushfire prone areas. It has a durability rating of 2, which makes it a good timber for decking. Spotted gum is a dense timber that shrinks very little compared with other timbers. It has low tannin content, so doesn’t “bleed” like some native timbers do.
Also, what is the best decking to use? The most popular plastic decking material is polyvinyl chloride (PVC), although there are also versions made from polyethylene. Just like composite decking, plastic is durable and easy to maintain, requiring regular cleaning with just a garden hose or bucket and mop.
Considering this, is Karri a hardwood?
Karri is a slow-growing, durable Australian hardwood that produces an interlocked grain and ranges from creamy to red-brown in colour.
What is the best decking timber to use in Australia?
5 Hardwoods Suited to the Australian Climate
- Spotted gum. One of the most commonly used Australian hardwoods, spotted gum, is loved by designers and architects the world over for its beautiful grain structure and attractive markings.
- Grey ironbark.
Which hardwood decking is best?
Softwood decking material options include pressure treated pine, cedar and redwood all of which require periodic finishing and refinishing to look good and last longer. Depending on your project needs, the best hardwood decking material options include Ipe, Cumaru, Garapa, Cambara and Machiche.
Does spotted gum go GREY?
Though the spotted gum tree itself has light coloured bark — usually ranging from white to grey — the decking that’s made from spotted gum heartwood is generally reddish-brown to golden-brown in hue. Over time, spotted gum decking will fade to grey.
How long will pine decking last?
Treated pine decking can last for over 30 years when properly treated – this means the hazard level of at least H3, ideally H4. The lifespan of the treated pine depends whether it is touching the ground, how thick the poles or planks are and the hazard level of its treatment.
What is the best timber for outdoor use?
The three most widely available and suitable exterior lumber choices, not treated with chemical preservatives, include Western red cedar, redwood, and cypress.
How long will treated pine last outside?
Does spotted gum warp?
Some advise merbau, some spotted gum (although some say spotted gum will warp). If tannin staining is likely to be a problem, spotted gum is one of the hardwoods that is least inclined to leach tannin. Spotted gum isn’t particularly prone to warping as long as (a) it’s properly kiln dried, and (b) securely fixed.
Does spotted gum Leach?
Leaching or tannin bleed, is when timber cladding or decking bleeds onto the surrounding surfaces. Leaching commonly occurs when certain timbers, for example Kwila (Merbau), Spotted Gum, Blackbutt, Balau and Tallowood are exposed to rain without a sealant or coating.
Can you leave merbau decking untreated?
Overall, Merbau decking has been known to withstand up to 40 years of life in a home before becoming susceptible to decay. In some cases, decay may start around 15 years, which considering that the timber can be used untreated—is a long time.
Is Jarrah a hard or soft wood?
Cypress Pine is an Australian softwood, despite its apparent hardness. Jarrah is an Australian hardwood. It is heavy, tough with a distinctive dark red colouration. Jarrah can be highly polished and accepts most finishes well.
What is Karri wood used for?
Karri wood is a beautiful mahogany colour, lighter in color than jarrah. It is used extensively in the building industry, particularly in roofs for the length and knot-free quality of the boards. The wood is also used for flooring, furniture, cabinetry and plywood.
What does Jarrah look like?
Jarrah. Color/Appearance: Heartwood color ranges from a light red or brown to a darker brick red; tends to darken with exposure to light. Thin sapwood is a pale yellow to pink. Grain/Texture: Grain tends to be interlocked or wavy with a medium to coarse texture.
How fast does Jarrah grow?
When only trees with above average increments are considered, 70 cm diameter would be attained after 250 years in high quality forest and 310 years in low quality forest.
Do composite decks get hot?
Trex decking does not typically get hotter than pressure-treated wood, although on a hot day with a blazing sun, nearly any surface will get uncomfortably hot. Lighter colored boards tend to be slightly cooler than darker composite boards.
Which is better composite or PVC decking?
Aesthetics: Capped composite decking has a more wood-like appearance whereas PVC decking, due to its all-plastic construction, has an enhanced wood look. Heat Dissipation: With enhanced UV protection, capped PVC decking offers slightly better heat dissipation than capped composite.