Processing Firewood: Collecting, Sawing, Splitting and Stacking

Where can you collect firewood?

Every piece of wood belongs to someone – a landowner, a forestry body, a park authority – and that includes branches lying on the ground. The safe default for bushcraft is simple: take only dead and down wood, only where collecting and fire are allowed, and never cut living trees or branches without the landowner's permission. Living wood also burns badly: it is full of water and smokes rather than flames.

Rules differ widely by country, region, ownership and season. Some places allow small amounts of fallen wood for a campfire at a designated fireplace; others ban collecting entirely, for example many nature reserves and national parks, or require a permit from the forestry office. Scandinavian and Scottish access rights come with duties too. This is orientation, not legal advice: check locally before you go, together with the rules for fires themselves in campfire safety and is it legal to start a fire?.

Dead wood is not waste: it feeds beetles, fungi, birds and the next generation of trees. Take thin and medium wood that is easy to break or saw, leave the big trunks, spread your collecting over a wide area and burn only what you need. A small, hot fire built from well-processed wood uses far less than a big, smoky one.

Look up as well as down. Dead branches hanging in a crown or a leaning dead tree can fall without warning – the classic widowmaker. Never pull, shake or saw at them, and keep your work and wood stack well away from them, as explained in how to spot dangerous trees.

Finding dry dead wood: standing or on the ground?

Dry dead wood is the single biggest factor in a good fire. The rule of thumb: wood off the ground is drier than wood on the ground. Dead lower branches on conifers, dead twigs caught in bushes and branches that fell recently onto other wood rather than into moss stay airy and dry out quickly after rain. Wood lying in moss, leaf litter or wet soil soaks up water from below, starts to rot and often stays damp all the way through. The glossary calls the good stuff standing dead wood – dead, but still held up off the ground.

How to test dryness

You do not need a moisture meter. Four quick checks tell you almost everything, and together they take seconds per piece.

Wet weather and winter

After days of rain, thin twigs are wet through, but a dead branch 4–8 cm thick usually has a dry core. Saw and split it, and the inner faces give you dry kindling – the method behind every wet-weather fire. Resinous pine stumps may hold fatwood, which lights even when damp, and birch bark burns wet – collect it only from dead or fallen birches; working with birch bark explains more. In frost, frozen wood splits more easily, but it takes longer to catch, so split it finer than usual.

Which species burn best is covered in tree identification for firewood. In short: dense hardwoods such as beech, oak and ash give long-lasting coals, softwoods such as spruce and pine catch fast and burn hot but quickly, and very rotten wood of any kind is not worth carrying.

Firewood sizes: from tinder to fuel

A fire climbs a ladder: the flame of the tinder lights thin sticks, which light thicker sticks, which finally light the fuel. Every missing rung is a reason for the fire to die. That is why sorting firewood sizes into separate piles before you light is the most useful habit in firecraft. Use your own body as a gauge: matchstick, pencil, thumb and wrist.

Most fires fail at the kindling stage, not at the tinder. The fix is almost always more fine kindling and more pencil-to-thumb sticks: gather twice as much as you think you need. Split wood lights better than round sticks of the same size, because the split faces are drier and the sharp edges catch flame.

Lengths

For most fire pits, rounds of 25–35 cm are a good length: short enough to split easily and to fit in a small fire, long enough to bridge the coals. Kindling can be the length of your forearm. Long poles for a star fire or a long fire are pushed in from the sides instead of being cut, which saves sawing – see fire lays and the fire lay picker.

Sawing firewood safely

For cross-cutting, a saw is quieter, safer and far less tiring than an axe. A folding saw with a 24–27 cm blade handles most dead wood up to about 10 cm; a bow saw is faster for thicker logs at a base camp. Blade choice, teeth and pinching are covered in detail in folding saw vs bow saw, resin cleaning and blade changes in saw care; here is how to set up the cut so it is safe.

If the saw suddenly binds, the log is pinching the blade. Stop, lift the free end or move the support, and never yank or twist the blade out; saw technique shows how to read the load and when to cut from below. Wear gloves that grip well – a slipping saw blade is the most common way to cut the guard hand.

Splitting wood with an axe

Splitting exposes the dry inner wood and turns rounds into usable fuel and kindling. The core rules for splitting wood with an axe never change: work on a chopping block, keep a clear safety circle, set up every strike so that a miss ends in wood, and let the axe head do the work. Choosing the axe, sharpening it and the full swing technique are in our guide to using an axe safely.

The swing arc and the safety circle

Most axe injuries follow one pattern: the bit glances off at an angle and continues into the shin, knee or foot. A block raises the work so that a miss ends in the block, and a level handle at impact keeps the arc in front of your feet. Before each session clear the space around you – overhead branches, guylines of the tarp, gear on the ground – and keep everyone else at least two axe lengths away, in every direction, until the axe rests in the block.

Splitting with a knife and making feather sticks

On lightweight trips many people carry only a saw and a knife. That works well: saw dead wood to 25–30 cm, then split wrist-thick pieces with a sturdy full-tang knife and a wooden baton. The rule of thumb from batoning wood with a knife: the wood should be clearly thinner than the blade is long, straight and free of knots. Never baton with a folding knife, and never strike the handle. Which knife takes this abuse is explained in choosing a bushcraft knife.

Keep a few straight, thumb-thick quarters with a clean 90° corner: they are the ideal blanks for feather sticks, which give you tinder and fine kindling in one piece when everything else is wet. Carve them last, right before lighting, so the curls stay dry. Split faces are the driest surfaces you have, so build your first rings of kindling from split wood rather than round twigs.

A knife edge dulls faster on firewood than in carving work. Check it after a splitting session and give it a few strokes on a fine stone or strop, as described in sharpening in the field.

Stacking firewood and keeping it dry

Processed wood is only useful if it stays dry until it goes on the fire. A tidy pile also keeps the work area clear, so nobody trips over loose sticks near a block or a fire. Stack wood at a base camp the same way woodpiles have always been built: off the ground, with air around it, covered on top.

Wood stacked next to a burning fire dries quickly, but it can also catch. Keep only the next few pieces close to the fire, and the main pile further back, upwind. Fire site rules – at least 5 m from tents and hammocks and at least 3 m from synthetic tarps – are explained in campfire safety. When you leave, scatter unused wood or leave it neatly at the fireplace for the next group, as the local rules say.

How much firewood do you need for an evening?

Far more than most people expect – and that is why a good rule is: collect everything before you strike the first spark, then collect the same amount again. Our firewood calculator estimates the amount from purpose, burn time, wood type, moisture and temperature. Its base rates for dry mixed wood are rules of thumb, not measurements of your fire:

An example straight from the calculator: a 4-hour evening fire with dry mixed wood at 5 °C, lit twice (evening and morning), needs about 14 kg of wood – roughly 2 kg of kindling, 3.5 kg of small fuel and 8 kg of main fuel, plus tinder. With an armload of about 5 kg that is three armloads, a stacked cube of about 34 cm on each side (the calculator assumes stacked wood weighs about 350 kg per cubic metre), and around 50 minutes of gathering in a normal forest. Softwood, damp wood and cold weather all push the figure up: wet wood counts 1.7 times, and below 5 °C the calculator adds 2.5 % per degree.

Tool safety, first aid, working in pairs and with kids

Processing firewood combines sharp tools, heavy wood and tired people at the end of a day – the most common time for injuries. A few habits prevent most of them.

First aid for cuts

Most injuries are cuts to the holding hand or the legs. For heavier bleeding, put on gloves if you can, press firmly on the wound with a sterile dressing and keep pressing, then apply a pressure bandage; if blood soaks through, add more dressing on top without removing the first layer. Spurting or uncontrolled bleeding is an emergency: call 112 in Europe (or your local emergency number) and keep pressing. Details are in treating knife and saw cuts. Small cuts still need cleaning and covering, because a dirty wound in the woods is easily infected. Keep injured or chilled people warm – a long evening waiting for help can lead to hypothermia.

Working in pairs

Two people process wood much faster – but only when they split the jobs instead of crowding one block. One saws, the other splits, at separate stations well apart; or one works while the other collects, sorts and stacks. The helper never stands in front of or beside someone swinging an axe, never holds a round for them and only steps into the circle when the axe rests in the block and they have made eye contact. Never hold a log for someone else to saw close to your hand.