The high-end designers we spoke with identified cast aluminum as the most popular type of outdoor metal furniture today. It has the advantage of being very lightweight, strong, and easy to clean.

while cast aluminum, though rust-resistant, may corrode unless protected or brought inside. On the other hand, if your ...

Make it last: It's susceptible to rust, so keep wrought-iron furniture on a covered porch or patio, or use furniture covers. Best for: Traditional wicker—natural fibers woven around a metal ...