Ironbark Timber Supplies

What is Ironbark Timber Supplies?

Ironbark timber is a handsome and premium native Australian hardwood comprised of several different species with a wide range of applications and uses from industrial construction to house framing and flooring. Ironbark timber is a hard-wearing and durable timber that is borer and termite resistant.

Its name comes from the apparent resemblance of its bark to iron slag, the by-product left after the metal has been separated from its raw ore. Ironbark trees have the tendency to not annually shed its bark, resulting in an accumulation of dead bark. This layer of bark protects the living tissue inside the tree from fires, and with a silvery-grey colour looks quite similar to iron metal.

The colour of ironbark timber supplies varies anywhere from dark red, dark brown and pale brown. However, common ironbark has a reddish tone.

Why Ironbark Timber Supplies?

Ironbark timber supplies is a hard-wearing and durable timber that is borer and termite resistant. Additionally, ironbark timber supplies have a Class 1 Durability rating. As the highest timber durability raring, ironbark is projected to last for 50+ years in a fully protected area and 50+ years outside above the ground. Class 1 timber will last 25+ years if it is in the ground, such as decking and patio poles.

Not only is ironbark durable, but it is also extremely heavy, making it ideal for structural use. It is primarily used in timber decking, flooring, handrails and outdoor timber construction.

Hardwood vs Softwood

As the name suggests Ironbark is a distinctive hardwood prized for over 200 years for its strength and durability. Different construction projects call for different kinds of timber supplies. Both hardwood and softwood are used for everything from structural to decorative projects.

It is important to note that soft and hardwood timber are distinguished in nature in terms of their reproduction rather than their end appearance and attributes.

The trees from which hardwood is obtained tend to be slower growing, meaning the wood is usually denser. Hardwood comes from broad-leaved trees such as Spotted Gum, Ironbark and Merbau etc. Softwood is harvested from trees that produce cones and seeds such as pines and cedars. 

Hardwood is considered to be the most versatile construction material. Applications range from gorgeous furniture, musical instruments, flooring, construction and boatbuilding. It is a material of durability and beauty. It is available in countless combinations of species, specifications and colours. 

As a result of their slow growth and their condensed, more complex structure, hardwoods offer a superior level of strength and durability.

Hardwood timber tends to be more resilient than softwoods and is reserved for projects that require maximum durability. They are often used for construction projects that rely on strength and durability, such as flooring, fencing, decking and high-quality furniture. 

Softwood is renowned for its versatility and strength.  This timber has a large variety of applications and a known for their aesthetic appeal. Softwood can be used across for both internal and external projects – from furniture and flooring to decking, landscaping and structural applications.

They are a flexible timber and are lighter in weight and less dense than most hardwoods. Softwoods are most commonly used for interior mouldings, windows production and generating sheet materials such as plywood. Softwood is best utilised on doors, windows, ceilings and furniture.

As the timber experts, Gowan Lea Timbers have all the knowledge and expertise to help you make the best decision on your timber materials. Call Today!

Ironbark Timber Supplies: The Benefits?

Due to its incredible weight and density, it is not a timber that is often used for smaller, precision work and projects, but rather larger construction projects. However, Ironbark Timber supplies provides various exciting construction benefits.

Strength: Due to its durability, the hard-wearing Ironbark is ideal for high traffic areas making Ironbark decking and flooring popular in commercial and domestic builds. It is the ideal timber for large construction projects, such as house framing, cladding, lining and internal and external flooring.

Rot and Insect Resistant: Ironbark timber has high-density levels with a strong natural resistance to lyctid borers and termites. This makes it a great option when building in areas prone to termites and other natural borers.

Degree of Fire Resistance: Ironbark Timber supplies is the recommended timber for construction in bushfire-prone regions, as it is not easily flammable and fire-resistant.

Style: The natural appeal and range of colours of Ironbark lead to some beautiful architectural and design applications.

Ironbark Timber Applications

Joinery: Ironbark timber products are ideal for timber joinery. They offer a unique and stylish touch to any interior or exterior design. These are produced for a variety of applications including door and window frames, cabinetry, skirtings, mouldings and eye-catching railings.

Decking: Ironbark timber supplies create decks that are a practical and an attractive addition to any outdoor patio space. These timber decks blend seamlessly with the environment and will serve as gorgeous entertainment areas for years to come.

As an external structure with high traffic and carrying large loads of traffic, ironbark timber decking are the ideal construction material. 

Flooring: Ironbark timber flooring has proven to be a timeless product that offers warmth and natural beauty.

Whether for structural or decorative flooring applications, ironbark timber offers durability, versatility and adaptability. The aesthetic and strength of timber flooring have proved to be popular in a wide variety of interior settings.

Fencing: The appeal and strength of ironbark make for the obvious choice in fencing construction projects.  Not only does ironbark fencing flow seamlessly with the outside environment, it remains structurally sound for years to come!

Landscaping and Pergolas: The natural appeal, strength and versatility of ironbark timber make it an ideal choice for retaining walls and various landscaping applications. 

Ironbark pergolas offer an attractive and economical way to create a functional outdoor living and entertainment spaces. Its resistance to fire and rot, make it ideal for outdoor construction projects.

Gowan Lea Timbers

An independent timber yard in Queensland, Gowan Lea Timbers provides a range of Ironbark timber supplies on the Sunshine Coast and has been operating for over 25 years. In our timber yard, we have our own sawmill, non-CCA treatment plant, kilns, dressing shed, and can source custom oil on request.

Known for our hardwoods, our timber supplies include Ironbark and other timber and building product lines such as pine framing, plywood, engineered timber, and fibre cement products.

No matter what type of project you have, our team of experts will work with you to ensure the smooth delivery of your project’s timber requirements!

Our History

We began Gowan Lea Timbers over 25 years ago when we decided to open a small retail yard for timber needs on the rapidly growing Sunshine Coast of Queensland. We started with two staff members, a forklift, a flat-bed truck, and an office in a shipping container, and as we grew, we gained a solid reputation for boasting the best hardwood around. 

It didn’t take us by surprise. Our mill—Gowan Lea Sawmilling Company—had been operating for over 40 years and was already a well-respected wholesaler of premium quality western QLD Spotted Gum and Ironbark products. However, when the Queensland State Government bought out and closed Gowan Lea Sawmilling Company through a Regional Forestry Agreement process in 2007, the retail timber yard was left without a supply of the premium hardwood that our business relied upon.

It was then we entered into a productive relationship with Mary Valley Timbers, a green hardwood sawmill near Gympie, who had a similar focus on quality and cut 95% Spotted Gum and Ironbark.

What We Do

From building a boardwalk through a rainforest to interior flooring, fencing and decking, Gowan Lea Timbers provides all your Ironbark timber needs on the Sunshine Coast. If your job is out of the ordinary, or you’re just not sure what decking timber to use, whether you’re a tradesperson looking for the right timber for a new home or extension, an architect wanting to specify the correct finish or a commercial construction firm with a major build, Gowan Lea Timbers has the products, experience, and on-site timber services to help.

Our Services

With a fully-integrated Planing Shed on-site, we can handle most of your timber dressing and profiling requirements.  We can also pre-coat your timber with quality timber oil to save you time and mess on-site, plus dock your timber to length.

  • Deliveries direct to site Australia-wide
  • Wood Machining and Dressing
  • Custom Laminating and Sanding
  • Timber Oiling

Our Products

Ironbark Timber Supplies

Ask us first and save yourself time and wasted money later on. Trouble-shooting and specifying the best Ironbark timber and building supplies are what we do best.

Our product range includes:

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No matter what type of project you have, we understand quality timber supplies and service are important. Our team of experts will work with you to ensure you get the most from the experience and ensure the smooth delivery of your project on the Sunshine Coast.


Gowan Lea Timbers is your one-stop shop for top-quality timber and building supplies. With years of experience, we’re the Sunshine Coast’s experts in all things timber!

We have an extensive range of timber products that are perfect for every project – large or small. Whether you need treated timber or composite decking or something else, we have you covered.

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