Abstract: An extendable table has a pair of main top panels (14, 16) and a pair of extension top panels (18, 20) that are stowable under the main panels. The main panels are secured to sliding frames (32) which are slidably movable relative to a fixed table frame (10). Each extension panel is seated on one sliding frame. As the main panel (14, 16) is pulled outwardly, the associated extension panel (18, 20) is automatically lifted up into the gap opened above the table frame (10), by interaction of guide means (42, 52) on the undersurface of the extension panel with the sliding frame (32) and the fixed frame (22).