Should I cover my deck furniture in winter or leave it out in Vancouver's mild wet winters?

Cover your deck furniture or store it indoors during Vancouver's winter months. While our mild temperatures mean you won't deal with snow damage or freeze-thaw cracking like other Canadian cities, the persistent rain and high humidity from October through March will cause significant deterioration to most outdoor furniture materials.

Metro Vancouver's marine climate is particularly harsh on outdoor furniture because of the relentless moisture exposure. We receive over 1,200mm of annual rainfall with 70% falling between October and March, creating sustained humidity levels of 60-80%. This constant dampness promotes mould growth, accelerates rust on metal components, causes wood furniture to warp and crack, and breaks down fabric and cushion materials. Unlike Eastern Canada where furniture faces dramatic temperature swings but relatively dry winter air, Vancouver furniture battles non-stop moisture penetration.

Teak and aluminum furniture can handle Vancouver winters uncovered if you're willing to accept some weathering. High-quality teak outdoor furniture is naturally rot-resistant and will develop a silver-grey patina over winter exposure — many homeowners prefer this weathered look. Powder-coated aluminum frames are also moisture-resistant, though you should still store or cover any cushions and fabric components. However, even these premium materials will last longer and look better with seasonal protection.

All other furniture materials should be covered or stored. Cedar, pine, and composite wood furniture will absorb moisture and develop mould, mildew, and surface checking without protection. Wicker and rattan furniture is particularly vulnerable to Vancouver's humidity — the weaving loosens and the material becomes brittle. Steel furniture will rust despite protective coatings, especially near the coast in West Vancouver, North Vancouver, Richmond, or White Rock where salt air accelerates corrosion. Fabric cushions, umbrellas, and any upholstered components must be stored indoors or they'll develop mould and odours that are difficult to eliminate.

For covering furniture, use breathable waterproof covers specifically designed for outdoor furniture. Avoid plastic tarps or non-breathable covers that trap condensation underneath — this creates the same mould-promoting conditions you're trying to prevent. Quality furniture covers allow air circulation while blocking rain. Position covered furniture away from areas where water drains off the roof or deck above, and ensure covers are properly secured against Vancouver's occasional winter windstorms.

Storage is the best option if you have space. A garage, basement, or covered carport provides complete protection from moisture. If indoor storage isn't possible, a waterproof deck box or outdoor storage shed keeps cushions, umbrellas, and smaller pieces completely dry. Many Vancouver homeowners find that storing just the cushions and fabric components while covering the frames strikes the right balance between convenience and protection.

Clean furniture before covering or storing to prevent mould growth on organic matter like food residue, pollen, or leaves. A simple wash with mild soap and water, followed by complete drying, prevents winter mould issues. This is especially important for furniture that will be covered rather than stored — trapped moisture under a cover will cause more damage than leaving the furniture completely exposed.

The mild Vancouver winter means you can actually use your deck year-round with proper weather protection, making furniture care part of extending your outdoor living season rather than just protecting an investment.

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