How to Keep Garden Furniture Dry?

The Principle That Matters Most

Keeping garden furniture dry is less about sealing it away from rain and more about letting it dry out. Water will reach outdoor furniture whatever you do. The damage comes from moisture that stays, so the aim is drainage, airflow and getting furniture off wet ground. A breathable cover, raised feet and somewhere dry for cushions will do more than an expensive waterproof sheet pulled tight to the floor.

That last point is worth stressing, because it is the most common mistake. A sealed cover traps warm damp air underneath, and condensation forms on the inside surface and drips back onto the furniture. People often find more mould under a fully waterproof cover than on furniture left uncovered.

Choose the Right Kind of Cover

A good garden furniture cover is water resistant on the outside and breathable, allowing vapour to escape. Look for vents, usually mesh panels near the top or sides, and a fit that leaves a gap at the bottom so air can move.

Fit matters. A cover that is too large flaps in wind, chafing the finish and eventually letting water in at the seams. Too tight and it pulls fabric against wet surfaces, keeping them damp. Measure the furniture including any protruding arms or a parasol base before buying.

Secure covers with the built in drawcord or straps rather than weighting them with bricks, which abrades the fabric. Check them after storms, since a cover blown half off is worse than none at all because it holds water in a pocket.

Get Furniture Off the Ground

Water sits on paving and decking long after rain stops, and furniture feet standing in it wick moisture upwards continuously. Timber legs draw water into the end grain, which is the most absorbent part of any piece of wood. Metal tube ends without caps let water inside the frame where it cannot evaporate.

Rubber or plastic feet solve most of this. Where furniture has none, a pair of slim treated battens or a couple of paving slabs raised on gravel will lift it clear. In gardens where the patio drains poorly, this single change makes a visible difference over a winter.

Store Cushions Properly

Cushions are the weakest link in every outdoor furniture set. Foam absorbs water and holds it, covers trap mildew, and a wet cushion left in place keeps the seat below it damp too. Even water repellent outdoor cushions are designed to shrug off a shower, not to sit soaked for a week.

Bring them indoors, into a garage, or into a dedicated storage box after use. A lidded box that drains and vents is ideal. Never seal damp cushions into an airtight container, because mildew develops quickly in that environment. Options across our modern garden storage UK sale range include boxes sized for cushions specifically.

If a cushion does get wet, stand it on edge in a ventilated spot rather than laying it flat. Water drains out rather than pooling in the base, and both faces can dry.

Provide Overhead Shelter

Preventing water landing on furniture in the first place is the most effective approach. A parasol left up will not survive a British winter, but a fixed or semi permanent structure will.

A gazebo or canopy over a dining area keeps rain off the table and seating and extends how much of the year the space is usable. Pergolas with a solid or louvred roof do the same while looking more permanent. In smaller gardens, positioning furniture under an existing overhang or against a wall with a deep eave achieves much of the same effect for nothing. Our modern garden canopies and gazebos UK sale range covers most patio sizes.

Take fabric canopies down or retract them before winter storms. A wet canopy left up holds pooled water, and the weight can bend the frame.

Design Out Water Traps

Some furniture holds water by design. Tables with a recessed rim around the top collect rainwater rather than shedding it. Seats with a slight dish hold puddles. Slatted surfaces with narrow gaps clog with leaves and then act as a dam.

Where you cannot avoid this, tilt the piece slightly or turn tables on their side when not in use so water runs off. Clear the gaps between slats before autumn leaves build up. A soft brush and a thin piece of card will clear most debris.

When buying, look for surfaces that slope or drain, drainage holes in seat bases, and caps on the ends of metal tube. These details separate furniture designed for outdoors from indoor furniture that happens to be sold for gardens.

Fitting and Securing Covers Correctly

A cover that is used badly can be worse than no cover at all, so the details of fitting matter.

Choose a cover sized to the furniture rather than significantly oversized. Excess material flaps in wind, which abrades powder coating and wears through the cover itself at the contact points. Too tight is equally unhelpful, because a stretched cover cannot be secured properly and will tear at the seams.

Use the drawcord or straps at the base, but stop short of sealing the cover tight to the ground. You want the cover held against wind while still allowing air to move underneath. Sealing it completely turns the cover into a bag that traps evaporating moisture.

Never fit a cover over wet furniture or damp cushions. Wipe surfaces first and allow at least a few hours of dry air, otherwise you have simply enclosed the moisture with the furniture.

Check covers after storms. A cover that has slipped to one side channels water onto one leg or one corner of the table, concentrating exactly the sort of prolonged wetting you were trying to prevent.

Ventilation and Condensation

Condensation is the most misunderstood part of keeping garden furniture dry, and it explains why furniture sometimes emerges from winter storage in worse condition than it went in.

Air always holds some water vapour. When warm, moist air meets a cold surface such as a metal frame or a glass table top, that vapour condenses into liquid on the surface. Inside a sealed cover or an unventilated plastic store, the same water evaporates and condenses repeatedly, keeping everything permanently damp.

The remedy is airflow. Covers with mesh vent panels let vapour escape. Storage boxes and sheds benefit from a small gap or vent rather than being closed tight. Raising items off the floor allows air to circulate beneath them.

Silica gel or moisture absorbing tubs help in a genuinely enclosed store such as a cushion box, provided you replace or dry them out when they saturate. They are a supplement to ventilation rather than a substitute for it, and they are most useful inside a cushion box or a bench with a lift up lid, of the kind found among our garden benches with integrated storage.

If you open a cover in February and find beads of water on the frame, that is condensation rather than a leak, and the answer is more ventilation rather than a heavier cover.

Winter Storage

If you have space, storing furniture through winter is the most reliable protection. A shed, garage or summerhouse takes the furniture out of six months of damp entirely.

Clean and dry everything before storing it. Putting away furniture that is still damp, or that has algae on the surface, means the problem simply develops out of sight. Stack chairs where the design allows, and place a layer of cardboard or felt between stacked surfaces to prevent scuffing.

Where indoor storage is not possible, choose the most sheltered part of the garden, group furniture together, raise it off the ground and cover it with a breathable cover. Grouped furniture presents less surface to the weather than pieces scattered around a patio.

Dealing with Damp Damage

Green algae on timber, rattan or paving is a surface problem rather than structural. Warm soapy water and a soft brush removes it. Avoid pressure washers, which erode timber fibres and force water into joints and frames.

Mildew on cushion covers can often be treated with a mild solution and thorough drying in sunlight, though prevention is far easier than removal. Check the care label before applying anything.

Rust spots on steel need treating promptly. Remove loose rust, treat the area and touch up with matching paint. Left alone, rust spreads under the coating and weakens joints.

Timber that has greyed has only lost surface pigment. A light sand and an application of exterior oil on a dry day restores it.

A Simple Seasonal Routine

In spring, wash everything, check and tighten fixings, oil any timber that needs it and inspect covers for tears. Through summer, bring cushions in after use and shake covers out after heavy rain. In autumn, clear leaves from slats and gaps before they compost in place, and do the second oiling if your timber needs it. In winter, store what you can, group and cover the rest, and check covers after storms.

None of this takes long, and it is the difference between garden furniture that looks good for a decade and furniture that looks tired after three summers. We stock covers and storage alongside our outdoor ranges at Furniture in Fashion precisely because the protection matters as much as the furniture.

Frequently Asked Questions

Should garden furniture covers be fully waterproof?

Water resistant and breathable is better. Fully sealed covers trap condensation underneath, which causes the mould they were meant to prevent.

Can I leave garden furniture out all winter?

Aluminium, hardwood and quality synthetic rattan usually cope. Raise it off the ground, group it and use a breathable cover. Cushions should always come inside.

How do I dry out soaked outdoor cushions?

Stand them on edge in a ventilated place so water drains rather than pooling, and allow both faces to dry before storing.

Why is there mould under my furniture cover?

Almost always trapped condensation. Use a vented cover, leave a gap at the bottom for airflow, and make sure furniture is dry before covering it.

Is a pressure washer safe on garden furniture?

No. It erodes timber fibres, loosens rattan weave tension and forces water into frame joints. Warm soapy water and a soft brush is safer and just as effective.