Firewood Seasoning Covers (Field Guide)

A firewood cover should shed rain and snow from the top of a split-wood stack while leaving the sides open to moving air. Raise the stack at least 6 inches above soil, extend the cover 2–4 inches past its edges, and secure it without wrapping the pile. Before burning, check moisture on a freshly split face; aim for 20% or less.

I have seen a well-meant tarp turn a useful woodpile into a damp one. The top stayed dry, but the tarp hung to the ground, trapping moisture around the sides. The lesson is simple: a cover protects seasoning wood from precipitation; it should not seal the stack.

A good setup balances three things: drainage below, airflow around the sides, and rain protection above. No cover can make wet wood ready on a fixed schedule. Species, split size, weather, and exposure all affect drying, so a moisture meter—not the calendar—makes the final call.

Cover Selection, Stack Setup & Safety Preparation

A suitable firewood cover sheds rain and snow but does not block air from the sides of the stack. Choose a durable, waterproof top cover sized to extend slightly beyond the wood. Before handling wood or installing the cover, assess the site, use task-appropriate protective equipment, and make sure the stack base is stable.

Start with the stack location. Choose level, well-drained ground with space around the pile for air to move. Keep the stack clear of ignition sources, and avoid placing it where runoff will collect beneath it. A stable base should raise the firewood at least 6 inches (150 mm) above soil to limit ground moisture and reduce contact with damp ground.

The cover needs to fit the stack, not swallow it. Measure the stack’s length and width, then allow roughly 2–4 inches (50–100 mm) of overhang at the edges. A larger overhang may hang down the sides and interfere with airflow. A smaller one may leave the top edge exposed to rain.

Before processing or stacking, wear protective equipment suited to the task and keep the work area stable and clear. If a chainsaw is used, follow its manual for PPE, bar and chain, fuel, and operation. Inspect the chain, bar, chain brake, and controls before use. There is no universal engine-to-bar ratio or tune setting that applies to every saw.

Stacking and Covering Firewood in the Field

Stacking well means keeping wood stable and letting air reach the pile. Split the rounds to the length required by your appliance’s firebox, then place the wood on a level, raised base. Cover the stack’s top with a modest overhang, secure the cover, and leave the sides substantially open.

Split wood is easier to stack in a stable row and exposes more surface area to drying than unsplit rounds. Split size matters: smaller pieces generally dry faster than larger pieces, but the right size depends on the appliance and how you plan to use the wood. Do not choose a split size that will not fit the firebox.

Stack the wood so the pile stays steady. Keep the base level and avoid building a stack that leans or shifts as pieces are removed. Leave space around the stack rather than pressing it against a barrier that blocks airflow. The goal is not a precise universal gap; it is an open arrangement that allows air to move around the sides.

Lay the cover across the top, with about 2–4 inches beyond the stack edges. Secure it so wind cannot displace it, but do not pull it down around the pile. A tarp or plastic sheet wrapped tightly around the stack can trap moisture and restrict airflow. Waterproof material does not make a sealed pile a good seasoning setup.

In a common field situation, a long row sits in an exposed yard. A cover that spans the row’s top and is tied down at its edges can protect it from rain while preserving open sides. If the same cover reaches the ground, the pile is effectively enclosed; pull it back to restore airflow.

Another practical case is a stack near a wall or fence. The cover still belongs on top, not wrapped around the stack. Keep the open sides as unobstructed as the site allows, and check that roof-like runoff from the cover does not drain into the base. If the location stays damp or has poor airflow, shifting the stack may help more than changing the cover.

Moisture Checks, Stack Inspection & Cover Maintenance

Moisture content is the amount of water in wood, expressed as a percentage. For indoor burning, target 20% or less, measured on a freshly split face with a wood moisture meter. A dry-looking surface, loose bark, or a set number of months cannot confirm that the inside of a piece is ready.

For a useful reading, choose a piece from the stack and split it again. Test the newly exposed face rather than relying on the outside of the wood. Follow the meter’s instructions for how to place its probes and read the result. If readings vary between pieces, check more than one; a single measurement may not represent the whole stack.

Use the result to guide the next step:

• If readings are at or below 20%, the tested wood meets the stated moisture target.
• If readings are above 20%, keep seasoning the wood and improve drainage or airflow if needed.
• If readings differ across the stack, test additional pieces and keep wetter wood seasoning rather than assuming the whole pile is ready.

Seasoning time varies with species, split size, climate, and exposure. A fixed timeline is not reliable for every stack, even when two piles were split at the same time. Keep a simple record of species, splitting date, and meter readings if you manage several types of firewood. That record helps identify patterns at your site without treating a past season as a guarantee.

Inspect the stack and cover periodically, especially after strong wind or heavy rain. Check for a cover that has shifted, torn, sagged, or begun to pool water. Look for a wet base, blocked sides, unstable stacking, and signs of pests. Remove or replace damaged cover material, restore the top-only arrangement, and correct drainage or airflow problems.

If wood remains wet, first check how and where it is stacked. Make sure the base is raised at least 6 inches above soil, the site drains, and the sides are open. Restack or move the pile if its position keeps it damp. Adding more cover to the sides may seem protective, but it can hold moisture in rather than solve the cause.

Seasonal Storage, Weather Protection & Readiness for Use

Seasonal storage works best when the cover is adjusted to weather without enclosing the stack. Keep the top protected from rain and snow, inspect the cover after storms, and maintain open sides through the drying period. When you need wood for indoor burning, verify moisture on a freshly split face and use the 20% target.

Snow and rain make secure placement important. A loose cover can shift and expose the top; a sagging cover can collect water. Check that it still sheds precipitation and that its edges have not fallen down over the sides. Remove standing water or correct the cover’s position, while keeping the stack stable.

When moving wood toward use, do not assume that a dry outer layer means the center is dry. Split a sample piece and take a meter reading on the new face. If the result is above 20%, return that wood to a well-drained, open-sided stack and test again later. Use readings to decide readiness, not appearance or elapsed time.

A practical seasonal routine is:

• Keep the stack raised, level, and clear of standing water.
• Confirm the cover remains secure and extends modestly beyond the top.
• Leave the sides open; do not wrap the pile to shield it from wind.
• Check several freshly split faces before bringing a batch indoors.
• Keep unready wood seasoning and maintain stable stacking as wood is removed.

The central tradeoff does not change with the season: protect the top from precipitation while allowing air to reach the sides. That arrangement reduces direct wetting without turning the stack into a moisture trap. The moisture meter then tells you whether the wood is ready for the stove or fireplace.

Frequently Asked Questions

Should I cover firewood while it seasons?
Yes. Cover the top to shed rain and snow, but leave the sides substantially open so air can move around the stack.

Can I cover a whole woodpile with a tarp?
Do not wrap it tightly or let the tarp hang to the ground. That can trap moisture and restrict airflow, which may slow seasoning and encourage mold or decay.

How far should a firewood cover overhang?
Aim for about 2–4 inches (50–100 mm) beyond the stack edges. The cover should protect the top without hanging down to enclose the sides.

How high should firewood sit above the ground?
Use a stable, drained base that raises the stack at least 6 inches (150 mm) above soil. This helps limit ground moisture and decay.

What moisture level should firewood reach before indoor burning?
Aim for 20% moisture content or less. Check with a wood moisture meter on a freshly split face.

Can I measure moisture on the outside of a log?
That surface may not show the moisture inside. Split a piece and measure its newly exposed face, following the meter’s instructions.

How long does covered firewood take to season?
There is no reliable fixed duration for every stack. Species, split size, climate, and exposure affect drying, so use moisture readings rather than a calendar alone.

Does bark or a dry-looking surface prove the wood is ready?
No. Appearance does not confirm the moisture inside. Verify readiness with a meter on freshly split wood.

What should I do if readings remain above 20%?
Keep seasoning the wood. Check that the base drains, the stack is raised, and the sides are open. Restack or move it if the location stays damp.

How often should I inspect the cover?
Check it periodically and after storms. Look for damage, displacement, pooling water, blocked airflow, unstable stacking, and pests.

(This article was written by one of our staff writers, Samuel Vance. Visit our Meet the Team page.)