Great question—this comes up a lot when people are furnishing balconies, roof terraces, and shared courtyards. The short version is that teak and aluminum solve the same problem in very different ways: teak brings warmth, weight, and a natural look, while aluminum brings lightness, low maintenance, and a modern edge.
Teak is a dense hardwood with natural oils that help it resist moisture, humidity, and insects, which is why it has long been used in outdoor settings. In a city, that matters on damp balconies or in rainy, humid climates. Good-quality teak ages gracefully to a silvery gray if left untreated, or you can clean and oil it to keep the golden tone. It feels warm to the touch, is repairable, and feels substantial—so it won’t slide around in wind. The trade-offs are cost, weight, and some maintenance; you’ll need to clean it and occasionally refresh it, and you should check that it’s responsibly sourced.
Aluminum is lightweight and naturally rust-resistant, especially when it’s powder-coated. That makes it easy to move, rearrange, and store, which is a big plus for small urban spaces and rooftop decks. It doesn’t rot, swell, or need oiling, and it can be finished in almost any color. The downsides? It can feel hot in strong sun and cold in winter, it may dent or scratch, and cheaper frames can feel flimsy. Powder coating quality matters, especially in coastal or polluted city air.
Comfort and style also differ. Teak suits warm, natural, resort-like, and traditional schemes; aluminum suits sleek, contemporary, and space-saving designs. For either material, cushions and breathable covers make a real difference.
So if you want low-effort, easy-to-move furniture for a compact city balcony, aluminum is often the practical choice. If you want enduring character, warm texture, and don’t mind a bit more care and weight, teak is worth the investment—just buy responsibly sourced wood and keep up with basic cleaning.