Seasoned vs Green Firewood: Why It Matters More Than the Wood Type

Ask most people what makes good firewood and they'll talk about the type of wood. Ironbark, Red Gum, whatever they grew up burning. But the single biggest factor in how well a piece of wood burns isn't the species, it's whether it's been properly seasoned.

What "seasoned" actually means

Freshly cut wood, often called green wood, can hold a large amount of water by weight. Seasoning is simply the process of drying that wood out over time, typically months rather than weeks, until the moisture content drops low enough for the wood to burn efficiently. It's not a marketing term, it's the difference between wood that lights and burns properly and wood that fights you the whole way.

Why green wood is a problem

Burning green or under-seasoned wood is a genuinely frustrating experience. The fire has to boil off the excess water in the wood before it can burn cleanly, which is why green wood smoulders, smokes heavily, and hisses at the ends rather than catching properly. A larger share of the wood's energy goes into evaporating that water rather than producing heat, so you get noticeably less warmth for the same amount of wood. It also leaves more residue behind in the firebox and flue over time.

How to tell if firewood is properly seasoned

A few reliable signs, whether you're checking your own wood or wondering about a supplier's:

• Colour: seasoned wood fades from a fresh, pale cut face to a duller grey or straw colour.

• Cracking: look for small splits radiating out from the cut ends, a sign moisture has left the wood.

• Weight: a seasoned piece is noticeably lighter than a green piece of the same size.

• Sound: knock two pieces together, seasoned wood gives a sharp, hollow knock rather than a dull thud.

• Bark: bark on seasoned wood is often loose or starting to peel away.

Why this matters more than Ironbark vs Red Gum

A well-seasoned Red Gum will consistently outperform a green piece of Ironbark, even though Ironbark is the denser, longer-burning wood on paper. Density only pays off once the wood is dry enough to actually combust properly. That's why every load we deliver, whether it's Regular Split or Double Split, Redgum or Ironbark, is fully seasoned before it goes in the bin. It's the baseline, not an upgrade.

Storing wood so it stays seasoned

Seasoned wood can pick moisture back up if it's left uncovered through a wet Melbourne winter. Keep the bin lid closed when it's not in use, and if you're decanting wood into a rack or shelter, keep it up off the ground and with some airflow around it rather than sealed in plastic, trapped moisture is as much a problem as rain.

How long does seasoning actually take?

This is where a lot of confusion comes from. Firewood isn't seasoned on a fixed schedule, it depends on the density of the wood, how it's been split, and how it's been stored while drying. Dense hardwoods like Ironbark and Red Gum generally take longer to season properly than softer timbers, often stretching across a full dry season rather than a few weeks, which is exactly why buying wood that's already been seasoned saves the guesswork and the wait. Splitting wood into smaller pieces speeds up seasoning, since there's more exposed surface area for moisture to escape from, which is part of the reason Double Split dries out a little faster than a large Regular Split piece cut from the same log.

A common myth: heavier always means better

It's easy to assume a heavier piece of wood is automatically better firewood, since density is genuinely part of what makes hardwood a good fuel. But a heavy green log is holding onto weight in the form of water, not stored energy. Weight is only a useful signal once you're comparing two pieces of the same species at the same size, a light Ironbark piece next to a heavier one of the same size is the seasoned one, not the other way around. Judged in isolation, weight tells you very little without knowing whether you're looking at moisture or density.