Abstract: An extendable sectional table, which is tough and easily foldable, can be extended in length as needed. Depending on the length thereof, the extendable sectional table is composed of a number of supporting units and a tabletop unit having a corresponding number of laths. A supporting unit further consists of a plurality of legs, collapsible connecting frames, cross bars, and fixers and sleeves for combining the above components. A tabletop unit consists of a plurality of laths, connecting tubes, a string, and a couple of fixing covers. The supporting units and the tabletop unit combine to form a firm body, which can be taken apart without tools and can be folded to fit in with a compact storage space.