UTS Building Interior Timber Staircase

Everything You Need To Know About Blackbutt

Blackbutt is a versatile and attractive hardwood that could be perfect for your next project. Find out everything you need to know about Blackbutt and whether it’s the right choice for you.

How easy is Blackbutt timber to work with?

In general, this timber is easy to work with. It is accepting of stains, oils and polishes and it is known to machine well and cause minimal problems. Due to having an increased level of extractives, the mature timber can cause issues with some adhesives, and has been known to cause staining on outdoor painted surfaces.

How long does it take to grow Blackbutt?

Blackbutt is a fast growing tree and is commonly used for this reason. A highly regarded species, the quick-growing nature of the tree means regeneration is somewhat easier than other species. These, amongst other reasons, have made Blackbutt one of the most popular choices of timber as a building material in Australia.

How old do Blackbutt trees get?

When undisturbed, Blackbutt trees have been known to live in excess of 200 years. They can also grow up to 40 metres or more in height, with a long straight cylindrical trunk and can measure up to 3 metres in diameter.

How to tell the age of a Blackbutt tree?

As growth rates vary during the life of a tree, accompanied with deformities and possible swelling, it is often difficult to get a precise age without having large margins of error.

Is Blackbutt a hardwood or softwood?

Blackbutt is a very dense hardwood, with a Janka (or hardness) rating of 9.1. Because of it’s durable and strong nature, this hardwood is commonly used for structural and exterior applications.

Is Blackbutt class 1 durable?

For above ground timber, Blackbutt is classified as a highly durable Class 1 whilst if the timber is in contact with the ground or below it, the durability grade is downgraded to 2. Due to the wood’s durable nature, this versatile, attractive hardwood can be used in structural, exterior or interior applications.

Is Blackbutt timber suitable for beds?

Versatility and strength makes Blackbutt cladding or timber framing a good choice in home construction. Blackbutt has a hardness rating of 9.1 and is naturally resistant to termites due to its high density. As Blackbutt is extremely versatile, it can be used for many applications, including furniture and bed frames.

Is the Blackbutt tree only found in Australia?

Blackbutt is native to south-eastern Australia. More specifically Blackbutt grows in the costal regions of New South Wales and Queensland. Economically, Blackbutt is one of Australia’s most important hardwoods due to it’s durable and versatile usage.

What do they make out of wa Blackbutt tree?

In Western-Australia the WA Blackbutt is just about off limits for production purposes unless it has been salvaged or cultivated. The grain is interlocked, making it difficult to work with this species of timber. Availability is limited, because a large part of the resource is now conserved in stream reserves. The timber is available in small quantities in Western Australia.

What is blackbutt timber used for?

As Blackbutt is a durable and versatile timber, it is commonly used for timber framing, cladding, internal and external flooring, decking, joinery, landscaping, furniture and structural applications.

Where do Blackbutt trees grow?

Blackbutt is predominantly grown in the north coast of New South Wales and southern Queensland. Blackbutt has proven durability in harsh Australian conditions and is the ideal choice for use in areas prone to bushfire. It is one of seven hardwood timber species approved by the Building Commission in Victoria for home construction in bushfire areas.

Which glue to use on Blackbutt hardwood miters?

Due to the high extractives, the mature wood may cause problems when gluing. A premium wood glue such as Titebond III gives a strong initial tack and sands easily without softening, making it ideal for interior and external jobs.

Why do Blackbutts release chemicals into the soil?

Blackbutts release chemicals into the soil as it inhibits germination of seedlings close to parent plant. The Eucalyptus tree uses these allelochemicals to prevent plant competition between the plants.

Why is Blackbutt a good ecosystem?

Blackbutt provides a good ecosystem as it forms an important element of the canopy of several endangered communities, including blue gum high forest, Illawarra lowlands, bangalay sand forest, and grassy woodland.

Why is Blackbutt called Blackbutt?

Blackbutt gets its name from the rough bark at the base of the tree, often charred black from past bush fires.

Can dogs scratch Blackbutt timber?

As Blackbutt is a very durable hardwood, this timber holds up better than most, therefore being suitable for dogs.  To further help protect Blackbutt timber flooring against pets, keep their nails regularly trimmed, place mats under food bowls and entrances whilst placing any toys in a separate room that can withstand more damage.


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