Leaving outdoor furniture outside during winter months presents significant challenges that vary by material type. Metal furniture, particularly iron or steel, risks rusting when exposed to moisture and freezing temperatures unless specifically treated with weather-resistant coatings. Aluminum generally performs better but can become brittle in extreme cold. Wood furniture may crack, warp, or develop mold without proper sealing and protection from moisture.
Plastic and resin furniture often becomes fragile in freezing conditions, increasing the likelihood of cracking under pressure or impact. Wicker furniture, both natural and synthetic, can suffer from moisture damage and structural weakening when left exposed to winter elements.
The most significant threats to outdoor furniture during winter include moisture penetration, freeze-thaw cycles that expand cracks, UV damage from reflected snow light, and the weight of snow and ice accumulation that can deform or break furniture structures.
For optimal protection, experts recommend storing furniture indoors when possible. If leaving outside is necessary, use waterproof covers that allow ventilation, elevate pieces to prevent ground moisture contact, and apply protective sealants appropriate for each material before winter arrives. Furniture specifically rated for all-weather use typically withstands winter conditions best, though even these benefit from additional protective measures during harsh winter months.