How to store firewood at home so it’s ready to burn

The fastest way to ruin a good wood heater is to feed it wet wood. The slowest way is to keep doing it for a few winters in a row. Knowing how to store firewood at home is what stands between you and that mistake. Firewood needs to be dry, off the ground, covered on top with the sides left open, and given time. Most home stacks fail on at least one of those four. This guide walks you through all four, in the order they affect burn quality.

Ultimate Fires is Australia's largest wood heater manufacturer, building the full range in Melbourne. We see new owners through their first winter every year, and the most common reason a heater underperforms in year one is the wood it's burning. Firewood storage rarely gets attention, but it changes everything about how your heater performs.

What does "ready to burn" mean?

Firewood is "ready to burn" when its moisture content sits below 20 percent, and ideally between 12 and 15 percent.

Above that 20 percent threshold, a meaningful share of the fire's energy goes into boiling water out of the wood. The rest is the heat that warms your room. You see the cost of wet wood as a fire that struggles to get going. The glass goes black quickly. The flue builds creosote faster than it should.

Moisture content is measured as water weight relative to the total weight of the piece. Green eucalypt can sit at 40 to 60 percent moisture when first split. Bringing that down to under 20 percent is the entire point of seasoning, and where good storage earns its keep.

Ultimate Fires' heaters are tested to AS/NZS 4013 under controlled fuel conditions. The lab figures assume dry wood within the standard's moisture range. Burn wet wood and the heater is working outside the conditions it was designed for. For a fuller explanation of why seasoning matters, see the broader seasoned firewood explainer.

What four conditions does firewood need at home?

Wood that's ready to burn is wood stored against four conditions consistently. Each one is simple. Together they decide whether your stack reaches the right moisture content and stays there.

The four:

• Dry wood to start with. Either seasoned at point of purchase, or seasoned by you over time.
• Air circulation around the stack. Wood releases moisture into the air around it. Still air slows that to a crawl.
• Off the ground. Bare soil wicks moisture upward into the bottom layer and rots pieces from below.
• Covered on top, open on the sides. Rain off, breeze through.

The rest of this guide goes through each in detail. Most stacks that disappoint their owners fail on the second or the fourth. People build a tight stack tucked into a sheltered corner and wrap the whole thing in a tarp. The wood underneath stays wet for years.

How long does firewood take to season?

Seasoning time depends on the species and the climate. In a Melbourne backyard, with a stack set up correctly, hardwood eucalypts take 12 to 18 months and lighter eucalypts take 6 to 12.

The table below covers the species most commonly available to home wood heater owners across Victoria, South Australia, and Western Australia.

Species	Typical seasoning time	Burn characteristics
Red gum	12 to 18 months	Dense, long burn, high heat output
Ironbark	12 to 18 months	Very dense, slow to light, very long burn
Messmate	6 to 12 months	Medium density, easier to light, popular all-rounder
Stringybark	6 to 10 months	Lighter, faster to season, good shoulder-season wood
Peppermint	6 to 10 months	Light, fragrant, quick to dry
Softwoods (pine, cypress)	3 to 6 months	Fast to season but burn fast and dirty; most heater owners avoid them

The starting moisture content matters as much as the species. Wood split green in spring will be ready by the following autumn for the lighter eucalypts. Heavy hardwoods cut green need a full Melbourne summer plus the tail of the next one before they're properly dry.

A practical buying note: most firewood sold as "seasoned" in Melbourne is part-seasoned at best. If you have the space and the patience, you'll get better burn quality finishing the seasoning yourself. Buy green or part-seasoned and let it dry out at home. For deeper detail on burn quality by species, see the species comparison in our guide to the best types of wood to burn.

American firewood guides default to six months as a seasoning baseline. That figure works for softwoods. Most Australian heater owners are burning hardwood eucalypts and need to think in years.

When should you start planning your firewood supply?

The honest answer is at least a year ahead, two years for the densest species, and longer again if you want the cleanest possible burn.

For a home heater owner buying part-seasoned hardwood from a merchant, the Australian Home Heating Association recommends buying in spring or summer for the following winter. That gives the stack a full Melbourne summer of drying before you start burning. Buying in autumn for the same winter is the most common reason a first-year stack disappoints.

For owners who cut or split their own wood, or buy it green, plan further out. A stack of ironbark or red gum that goes up green in spring 2026 is properly ready in autumn 2028. Some experienced burners run a deliberate three-year rotation: a year's worth bought or cut annually, the oldest stack burned, the rotation topped up. The wood at the bottom of that rotation has reached the equilibrium moisture content the Firewood Association of Australia describes, around 12 to 15 percent. It burns hotter, cleaner, and with less smoke than the same wood at 18 months. Few heater owners need a setup that elaborate. The ones who run it get the cleanest burn an air-dried stack can give you.

The practical version for most homes is simpler: keep two stacks. One full and seasoning. One being burned. When you finish burning a stack, the next one is ready. You're always burning wood that has had at least a full year on top of whatever drying it had at point of purchase.

Where should you put your firewood stack?

A good stack location balances four things: distance from the house, sun exposure, airflow, and ground drainage.

For suburban readers, the practical answer is along a fence line, north-facing where possible, two or three steps from the back door. Sun on the stack accelerates drying, which is why the north-facing position matters in the southern hemisphere. A through-breeze helps. A stack tucked against a solid wall with no airflow behind it seasons slowly.

Distance from the house is a balance. Close enough that you'll grab wood on a cold night without resentment. Far enough that termites and (on rural blocks) bushfire risk are managed. For homes on BAL-rated rural blocks, the heap should sit outside the asset protection zone. Local council and CFA guidance set the specifics.

Drainage matters under the stack itself. Concrete, gravel, or pavers underfoot is the goal. Bare soil turns to mud in winter and wicks moisture upward through the bottom row.

How should you stack firewood for airflow?

Good stacking lifts the wood off the ground, holds it stable, and leaves enough gaps between pieces for air to move through the pile.

The fundamentals:

• Get it off the ground. Two or three pallets, treated timber rails, or a purpose-built rack. Air should circulate underneath as well as around the stack.
• Single row dries fastest. Double-row stacks fit more wood into less space, but the inner row dries slowly because the outer row blocks airflow.
• Bark up on the top layer. Bark sheds water. Inside the stack the orientation doesn't matter.
• Keep it under 1.2 metres high. Higher stacks lean, fall, and become a hazard for kids and pets. If you need more volume, build a second stack alongside.
• Use end-stacked corners. Stacking the end pieces in a crossed "log cabin" pattern holds the stack upright and lets air through the corner.

A row that's open at both ends and built on pallets will season faster than a tightly-packed block of the same wood with no air movement. That's the whole game.

How do you cover firewood the right way?

The rule is simple: cover the top, leave the sides open.

A sealed tarp wrapped around the whole pile traps the moisture the wood is trying to release. You get a damp pile that grows mould rather than drying. Most "I covered it and it's still wet" stories trace back to this one mistake.

What works:

• A tarp tied across the top only, with the sides hanging short of the wood and the ends open.
• A simple lean-to with a corrugated iron or polycarbonate roof and open ends.
• A purpose-built woodshed with louvred or slatted sides.
• A sheet of corrugated polycarbonate sitting on rails over the top of a long stack.

What doesn't:

• A wheelie-bin-style wrap that seals the stack on all sides.
• A closed shed with no ventilation.
• An indoor garage stack pressed up against the heater. Garages rarely have the airflow to dry wood, and you'll bring spiders, mites, and the occasional borer inside.

For readers on the Geelong side of the bay, or anywhere with regular salt-laden air, the cover hardware corrodes faster than inland sites. Choose galvanised or stainless fixings and accept that you'll replace them sooner than someone in Ballarat would.

How can you tell when firewood is ready to burn?

Seasoned wood gives you four clear signals: visible cracking on the cut face, loose or fallen bark, lighter weight, and a clear sound when two pieces are knocked together.

Walking through them:

• Look at the cut face. Cracks radiating from the centre, like spokes from a wheel, are the most reliable visual sign that the moisture has come out of the piece.
• Check the bark. Loose, peeling, or fallen-off bark means the wood has shrunk underneath as it dried. Bark welded firmly to the timber is a green-wood signal.
• Pick it up. Seasoned wood feels noticeably lighter than green wood of the same size. After a few weeks of handling your own stack, you'll spot the difference without thinking.
• Knock two pieces together. Seasoned wood gives a clear, almost-musical clack. Green wood gives a dull thud.

If you want a number rather than a feel, a pin-type moisture meter from any hardware store reads in seconds. Split a piece, push the pins into the freshly-exposed inner face, and read. Under 20 percent is ready. Under 15 percent is excellent.

There's also the rough-and-ready test: if a piece struggles to catch flame from kindling, it's too wet. Set it aside for next season and reach further into the stack for a drier piece.

What mistakes do most home stackers make?

Six mistakes show up in most disappointing home firewood piles. Each one is fixable in an afternoon.

• Stacking against the side of the house. Termites move in, the wall framing picks up moisture, and you've created a maintenance problem for the sake of saving three steps.
• Sealing a tarp all the way to the ground. Traps moisture, grows mould, and defeats the purpose of covering the pile in the first place.
• Burning "seasoned" wood the same week you buy it. Most firewood sold as seasoned in Melbourne is part-seasoned at best. Check a few pieces with a moisture meter before you trust the label.
• Storing the entire winter's wood indoors. The heat dries it faster, but you'll bring in spiders, mites, and the smell of damp timber. Bring in a day or two at a time instead.
• Forgetting to rotate the stack. Oldest wood sits at the back, gets buried under the next year's load, and starts to rot before it's burned. First in, first out.
• Splitting too late. Whole rounds dry slowly because the bark seals moisture in. Split as soon as you can after cutting and the seasoning clock starts properly.

Most of these are habits more than skills. The home stack that performs well in year three is usually the one with the simplest setup, kept consistent.

How does well-stored wood change how your wood heater performs?

A reader who gets storage right sees the difference in five places. The glass stays cleaner. The fire runs hotter on lower air settings. Each load burns longer. Less ash builds up. The flue needs sweeping less often.

That's a meaningful gap in lived experience. The same heater, in the same room, with wet wood versus dry wood, behaves like two different appliances. Most owners arrive at this gap through trial and error across three or four winters. The shortcut is the four conditions: dry, off the ground, covered on top with the sides open, and given time.

If your stack is right and the glass still goes black, the problem has moved elsewhere. The usual suspects are air control, loading technique, door seal, and the flue itself. Our flue damper guide walks through the air-side diagnostics. Our black glass guide walks through the loading and seal side.

Talk to the people who built your heater

Ultimate Fires manufactures every heater in our range in Melbourne. We sell factory-direct to the public through six showrooms across Australia: Dandenong South, Epping, Geelong, Ballarat, Adelaide, and Perth. Drop in or call ahead. The staff can talk through firewood sourcing in your area, recommended species for your heater model, and service intervals based on how you store and burn. The people who answer the phone are the same ones who walk customers through buying decisions every day.