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Spotted Gum Timber Decking

Starting From Just $8.50

Spotted Gum is a dense, durable Australian hardwood known for its strength and distinctive grain. With a Janka rating of 11.0 kN and a BAL 29 fire rating, it’s a top-tier option for decking in exposed or bushfire-prone areas. At Greenhill Timbers, we supply Spotted Gum Decking in 86 x 19mm and 135 x 19mm sizes, with both long and random lengths available to suit your layout. We keep it well-priced, so you can get a standout deck without overspending.

SKU: N/A Categories: , Product Width: 135mm Product Width: 19mm Janka Rating: 11
Price by L/M & Piece

Product Description

Reliable Spotted Gum Decking in the Long Run

Spotted Gum has earned its reputation with builders for good reason; it lasts. It’s a Class 1 timber for above-ground use, which means it’s up there with the most durable Spotted Gum Timber decking options. Whether your deck is exposed to full sun, salt air, or even bushfire, this timber holds steady. It is also termite-resistant, which is one less thing to worry about down the track.

The boards have a natural strength that helps them resist wear and surface damage. You’ll often see Spotted Gum Decking used in spots where durability really matters, like walkways, outdoor steps, or wide open decks.

A Bit of Character in Every Board

One of the things people like about Spotted Gum is how no two boards look the same. You’ll get colour variation that can shift from soft browns to deep reds. It’s got a bit more texture and interest than some other hardwoods, especially with its occasional wavy grain.

If left unfinished, it weathers to a soft grey. But if you want to bring out the depth of colour, a coat of oil goes a long way. Either way, it holds its shape well and doesn’t twist much when installed properly.

Sizes and Options at Greenhill Timbers: 86 x 19mm, 135 x 19mm

We stock Spotted Gum decking in a few handy options:

  • 86 x 19mm
  • 135 x 19mm Random Lengths
  • 135 x 19mm Long Length

All boards are kiln-dried for stability and come in structural grades ready for external use. Whether you’re building a new deck or patching up an old one, we’ve got the stock to match.

Spotted Gum Decking Supplied by Greenhill Timbers

At Greenhill Timbers, we know what works and Spotted Gum is a staple for a reason. We supply it to homeowners and tradies across Melbourne who want something that’ll last and still look good after a few years in the weather.

If you need help figuring out quantities, board spacing, or which size to go with, give us a call or drop by our store. We’ll sort you out with what you need to get the job done right.

Janka Rating

What Is the Janka Rating?

The Janka rating is a way to measure how hard a timber is, specifically, how much force it takes to push a small steel ball halfway into the wood. The number you get is shown in kilonewtons (kN). A higher Janka score means a harder, more durable timber. Builders and floor installers use it to work out which timbers hold up better in busy areas.

Here’s a rough guide to how some timbers sit on the scale:

  • Brazilian Walnut – around 16.0 kN
  • Spotted Gum – roughly 11.0 kN
  • Tasmanian Oak – about 5.5 kN
  • Radiata Pine – close to 3.0 kN

Keep in mind: these values can vary depending on moisture content and grain direction.

It's One Part of the Decision

Hardness is useful to know, but it’s just one factor. Janka doesn’t tell you how a timber reacts to heat or humidity, how stable it is, or how easy it is to cut and install.

Some of the hardest woods can be difficult to work with. Others, even if softer, might be more stable or forgiving on-site.

At Greenhill Timbers, we look at the whole picture, not just the numbers. All our timbers are structurally graded and covered by a 25-year guarantee. We'll help you pick something that works for your project, not just on paper.

Delivery Options

Melbourne-Wide Delivery

We carefully prepare your order and organise pick-up or delivery that suits your schedule, ensuring your satisfaction when you choose to purchase from us. If you're located in Melbourne and its surrounding areas, you can collect your order from our Thomastown Showroom at 170 Settlement Road. Otherwise, we can facilitate delivery by leveraging our strong partnerships with various sub-contractors to get you the most competitive delivery rate and suitable time frame. For more information, get in touch with us.

Customer Reviews

Why Choose Us

Get Your Timber Packed

Get Your Timber Packed

We pack, wrap and load your products into your vehicle on-site. As a Green Hill customer, you won’t have to pack your timber or lug it into your vehicle after you’ve purchased it.

01
One Stop Shop

One Stop Shop

We are a one-stop shop for all your timber needs. Get dozens of types of wood, both imported and local, and the right cuts for your decking, flooring, cladding and fencing projects.

02
Competitive Pricing

Competitive Pricing

In most cases, we can help you save hundreds or even thousands of dollars on the same materials compared to other timber suppliers.

03
Expert Staff

Expert Staff

Our expert staff will assist you in finding the perfect timber to match your projects based on a relaxed chat to find what you need.

04
Transparent Quotes

Transparent Quotes

We give you the whole picture when we quote you. So you can avoid any nasty surprises down the line.

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