Many homeowners love the elegant, durable look of cast aluminum outdoor furniture but hesitate to use it on an elevated deck due to weight concerns. The key question is: Is cast aluminum too heavy for a second-story deck? The answer depends on your deck's structural capacity and the specific furniture set.
Cast aluminum is heavier than tubular aluminum or resin but lighter than wrought iron or solid wood. A typical dining set can weigh 200-400 pounds. Most properly built second-story decks, designed to hold people, grills, and planters, have a live load capacity of 40-60 pounds per square foot. Distributing the weight of a furniture set over its footprint usually keeps it well within this limit.
However, caution is essential. First, consult your deck's original building plans or a structural engineer to confirm its load rating. Concentrate weight by placing heavier pieces near load-bearing walls or support posts, not in the center of a span. Use lightweight cushions and avoid overloading tables with heavy planters or appliances.
For ultimate peace of mind, consider hybrid sets with cast aluminum frames and mesh sling seats, or choose aluminum-alloy furniture. With proper planning, you can safely enjoy the timeless style and low-maintenance benefits of cast aluminum on your elevated outdoor living space.