Whether you can leave your metal outdoor furniture outside during the winter depends on several factors, including your climate, the specific type of metal, and whether you're willing to provide some basic protection. While sturdy metals like aluminum and wrought iron can withstand winter conditions better than others, all metal furniture benefits from proper winter care to prevent rust, corrosion, and damage.
If you live in a region with harsh winters featuring heavy snow, ice, and road salt, storing your furniture indoors is the safest option. Moisture is the primary enemy of metal furniture, as it leads to rust and corrosion over time. Even powder-coated finishes can eventually chip or scratch, allowing moisture to reach the bare metal beneath.
For those who lack storage space, leaving furniture outside is possible with precautions. Always clean furniture thoroughly before winter arrives, removing all dirt and debris. Apply a protective wax or sealant designed for outdoor metal. Invest in high-quality, waterproof covers that are breathable to prevent moisture trapping. Ensure covers are securely fastened to prevent wind damage. Elevate furniture pieces slightly off wet ground using feet or pallets.
Aluminum furniture generally handles winter best due to its natural rust resistance. Wrought iron is durable but requires intact paint or coating to prevent rust. Steel furniture is most vulnerable to rust and really should be stored if possible. Remember that temperature fluctuations can cause metal to expand and contract, potentially weakening joints over time.
With proper preparation and protection, you can leave certain metal furniture outside. However, for maximum longevity and to maintain its appearance, indoor storage remains the recommended approach for harsh winter climates.