Choosing furniture for a rooftop terrace requires careful consideration of weight to ensure it remains secure in windy urban conditions. The primary goal is to find a balance between heavy enough to stay put and practical enough for the space. So, what is the best weight?
There is no single magic number, as the ideal weight depends on the specific piece of furniture and local wind conditions. However, a general guideline is to select furniture that has substantial heft. For example, a standard dining chair should ideally weigh at least 15-20 pounds (7-9 kg). A small side table should be in the 20-30 pound (9-14 kg) range. For larger key pieces like a sofa or a dining table, look for weights starting at 80-100 pounds (36-45 kg) and above. The key principle is that the furniture should feel difficult to lift easily; if you can pick it up with one hand, it's likely too light for an exposed rooftop.
Beyond just overall weight, the design and materials are crucial. Opt for furniture made from inherently heavy materials like concrete, stone, thick cast aluminum, or solid teak wood. These materials are not only heavy but also durable. Additionally, look for designs with a low center of gravity. Furniture that is wider and lower to the ground is inherently more stable than tall, top-heavy pieces.
For furniture that isn't naturally heavy enough, there are effective solutions. Many modern outdoor furniture sets are designed with weight in mind but may include options for anchoring. You can purchase commercial anchoring kits that securely tie the furniture to the terrace surface. Another simple DIY trick is to add weight discreetly. For instance, you can fill the hollow bases of umbrella stands with sand or gravel. Placing heavy pavers or weights inside the bottom of a sofa's frame can also significantly increase its stability without compromising aesthetics.
Ultimately, the best weight is one that provides peace of mind. Prioritize heavy, low-profile furniture made from robust materials, and use anchoring methods for added security. This approach will allow you to create a stylish and safe outdoor oasis high above the city streets, without worrying about your furniture taking an unexpected flight.