Yes, you can use aluminum sheets to make furniture. Aluminum is a lightweight, durable, and corrosion-resistant material that is often used in modern furniture design. It can be easily shaped and welded, making it suitable for a variety of furniture pieces such as tables, chairs, and shelving. However, it's important to consider the design and structural integrity, as well as the finish and comfort, when creating furniture with aluminum. It's also advisable to use appropriate tools and techniques to ensure safety and quality in the construction process.