Should You Cover Firewood? Why You Cover the Top Only

When stacking logs outdoors, should you cover firewood or leave the pile open to the elements? The direct answer is that you should cover firewood, but you should cover the top of the stack while maintaining open airflow around the logs. Overhead protection shields the wood from rain and snow, while open sides allow ambient wind to carry evaporating water away. Stacking firewood off damp ground and keeping the sides exposed prevents trapped condensation from causing mold, rot, and slow drying.

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Should you cover firewood? The quick answer

Yes, you should cover firewood, but never seal the pile completely. Split green logs must release moisture to burn cleanly. Leaving a woodpile entirely uncovered allows rain and snow to soak back into the logs, delaying drying. Wrapping a solid sheet down the sides to the ground traps rising moisture, causing mold and rot. Shelter the top of the stack against precipitation while maintaining ventilation through open sides or built-in cover vents.

Cover types and dimensions compared

Manufacturers produce purpose-built covers and tarps sized to fit standard outdoor woodpiles. Purpose-built covers feature partial drop lengths or ventilation flaps that protect upper logs while keeping side airflow moving. When using flat tarps, choosing the right sheet size allows you to shelter the top without smothering the sides. Below are typical cover dimensions, materials, and airflow designs from outdoor equipment listings.

Brand and cover style	Stated dimensions	Material and build	Stated airflow and access design
VIVOHOME 4-foot rack and cover set	Rack: 4ft x 4ft x 13.8in; Cover: 4ft x 3.5ft x 24in	600D Oxford, 1.2 mm steel	Holds 1/4 cord; 551 lb capacity; downward air vents
Himal Outdoors 8-foot rack cover	96.5 x 24.8 x 49.2in (fits 8ft rack)	600D polyester, PU coating	Double-stitched seams; 2 hook-and-loop strips
Champion Power Equipment 96-inch cover	18 x 99.6 x 25in	600 denier canvas	Fits face cord; sliding straps; 4-year warranty
Artibear 4-foot rack cover	50 x 21 x 43in (for 48in rack)	420D Oxford cloth	6 fastener strips; bottom clasps
Fashlits 8-foot rack cover	96 x 24 x 42in	600D Oxford, PU coating	2 air vents; handles; elastic bottom cord
HIRALIY 3 by 8-foot tarp	3 by 8 feet (96 x 36in)	20 mil Oxford, PVC coating	8 double-stitched reinforced webbing loops
TARPAL 4 by 4-foot tarp (2-pack)	4 by 4 feet (48 x 48in)	6 mil HDPE, 68 g/m²	Grommets every 35in; double-sided protection
TARPAL 6 by 8-foot heavy-duty tarp	6 by 8 feet (96 x 72in)	20 mil HDPE, 16×16 weave	Grommets at 17.7in; UV protection layer
GliCraft 48-inch hoop cover	48 x 49 x 24in	Laminated fabric	Top-only design for side airflow; zipper access

These dimensions show that options like the best firewood rack with cover provide fitted protection. GliCraft makes a 48-inch hoop cover with a top-only profile for side airflow, while the VIVOHOME 4-foot set includes a 3.5-foot tall cover with downward vents. For larger stacks, Champion Power Equipment offers a 96-inch cover sized for a face cord. Stackers using flat tarps can use HIRALIY 3 by 8-foot or TARPAL 4 by 4-foot sheets to cover top only across narrow rows without smothering stack sides.

How to cover firewood correctly

Covering firewood properly shields split wood from precipitation while letting moisture escape through cut grain ends. Follow these core practices when setting up outdoor storage.

Cover the top, leave the sides open

Covering the top while leaving the sides open provides the best balance of weather protection and airflow. An overhead sheet of metal, plywood, a narrow tarp, or a commercial cover keeps rain and snow off the logs. Open sides let passing wind circulate through the stack and carry evaporating moisture away. Avoid wrapping stacks in non-breathable tarps that trap humidity inside.

Stack firewood off the ground

Never stack logs on bare soil or grass where ground moisture rots bottom tiers and attracts insects. Elevate the pile on pallets, skids, or a dedicated cover for firewood storage rack system so air flows underneath and pooling water cannot reach the wood.

Position the stack for sun and wind

Sun and wind drive firewood seasoning. Place your pile along a sunny southern or western exposure where daytime warmth heats log surfaces. Align rows parallel to prevailing breezes so moving air travels freely along the woodpile and carries away evaporating moisture.

Fasten covers against high winds

Windstorms can catch loose tarps, tearing grommets and exposing dry logs to storms. Anchor covers with cords, bungees, or weights over the top surface rather than driving nails through fabric. Fitted covers with buckled straps stay anchored during seasonal weather while providing overhead shelter.

Leave space between stacked rows

When stacking multiple parallel rows, leave an open corridor between them. Pushing rows tightly together blocks lateral airflow and traps humidity between stacks. Maintain clearance between your pile and any adjacent exterior wall to allow continuous air movement.

How to tell when covered firewood is dry

Overhead covers protect logs, but verify readiness before burning:

• Moisture meter reading: Confirm dryness with a pin meter. Split a sample log and press the pins firmly into the center grain. Seasoned wood registers at proper burning levels. See our guide to the best firewood moisture meter models.
• Radial checks: Shrinkage creates visible cracks radiating outward from the heartwood across the cut end grain.
• Color and bark: Seasoned wood fades to a muted gray or brown, and bark loosens along the edges.
• Weight: Logs feel noticeably lighter as internal water evaporates.
• Sound: Knocking two dry pieces together makes a crisp, ringing clack rather than a dull thud.

The U.S. EPA Burn Wise program advises burning seasoned firewood for cleaner heat, less chimney buildup, and reduced smoke emissions.

What happens if you burn wet firewood

Burning wet wood wastes thermal energy boiling off water, leaving the firebox cool, sluggish, and smoky. Wood burners mount a best stove thermometer on the flue pipe to monitor operating temperatures.

Cool flue temperatures allow unburned wood vapors to condense inside the chimney as flammable tar deposits. Understanding what is creosote and how to prevent it is vital for safety, as chimney creosote causes dangerous flue fires. Burning dry logs protects your home while delivering efficient warmth.

Tarps versus purpose-built rack covers

Flat poly tarps are economical, but stackers must fold them lengthwise to keep stack sides open. In freezing weather, stiff tarps require careful anchoring to avoid wind damage.

Purpose-built rack covers are sized for standard frames. Some feature top-only cuts, while deeper covers use built-in side vents to release humidity. Front flaps with zippers allow convenient log access. For permanent storage, an open-sided firewood shed outdoor with roof provides overhead shelter with unobstructed airflow.

Frequently Asked Questions

Should you cover firewood with a tarp?

Yes, but place the tarp across the top only. Fold wide sheets so the sides remain open for moving breezes. Wrapping a woodpile completely traps ground moisture, causing mold and rot.

Should you cover firewood during summer?

Yes, covering the top protects split logs from sudden thunderstorms. Leaving stack sides open allows summer heat and winds to evaporate moisture without rain re-soaking the wood.

Should you cover firewood during winter?

Yes. Overhead shelter prevents snow and ice from accumulating on logs. Melting snow seeps into the pile and refreezes, so keep the top covered with a slight slope for runoff.

Can you wrap a firewood pile completely?

No. Sealing a woodpile in plastic or unvented tarps traps rising soil vapor and wood moisture inside. Condensation saturates the logs, encouraging fungal decay and preventing drying.

Does firewood season faster uncovered?

No. While uncovered wood gets direct sun, recurring rain and morning dew repeatedly soak top logs, delaying seasoning. Covering the top while leaving sides open delivers consistent drying.

How far down the stack should a cover reach?

An unvented tarp should cover the top course with a slight overhang. Full-drop covers must include built-in side vents or openable lower flaps so air continues to circulate around lower tiers.

Related guides

For more advice, visit our firewood storage hub, view top picks in our best firewood rack with cover guide, and compare options in cover for firewood storage rack. We also review firewood rack outdoor with cover setups, durable metal wood racks outdoor for firewood, affordable cheap firewood rack options, and permanent firewood shed outdoor with roof structures. For seasoning technique, read how to stack firewood, learn how to season firewood fast, and see how long does firewood take to season. To verify wood dryness, check the best firewood moisture meter models, learn how to use a firewood moisture meter, and review what moisture content should firewood be. For indoor staging, see can you bring firewood indoors, compare the best indoor firewood rack, see firewood rack for porch designs, and choose a best fireplace log holder. Wood cutters can also explore our best chainsaw for firewood reviews, sharpen chains with the best chainsaw sharpener, split rounds with a best splitting maul or best splitting axe, and heat safely with the best wood stove for heating a house.

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