A round table with a metal base brings industrial or modern aesthetic to a small space without taking up visual weight the way wood bases sometimes do. Metal bases work well with round tops because the contrast between the geometric frame and the organic curved surface is visually interesting. The metal should be quality steel or iron that will not rust if you are near a window or in a humid climate. Metal and wood combinations read as intentional design. These are the metal-based round tables that look like you thought about the design rather than just accepted the default.