Whether you should leave your outdoor furniture outside during winter depends heavily on the material. The general rule is: when in doubt, store it. Prolonged exposure to freezing temperatures, snow, ice, and moisture can cause significant damage. However, with proper preparation, some sturdy pieces can brave the cold.
For most materials, storage is the safest choice. Wicker/Rattan (natural) and Wood must be stored indoors in a dry, covered space like a garage or shed, as moisture causes rotting, cracking, and mold. Cushions, Umbrellas, and Fabrics should always be cleaned, dried thoroughly, and stored indoors to prevent mildew, fading, and fabric degradation.
If you must leave furniture outside, select durable materials and winterize them. Aluminum, Steel, and Resin Wicker can often withstand winter if protected. Always use high-quality, breathable, waterproof covers that are securely fastened. Elevate furniture off wet ground with feet or pallets to prevent water pooling. For Metal Furniture, check for rust spots and apply a protective wax coat before covering. Teak Wood can be left uncovered to weather to a silver-gray patina, but ensure it's not sitting in standing water.
The consequences of neglecting winter care are costly: rust on metal, cracks in wood, brittle plastic, moldy cushions, and faded fabrics. Investing time in proper storage or protection each fall will save you money on replacements and keep your outdoor living space beautiful for many seasons to come.