An adjustable work surface comprises first and second decks that are pivotally connected by pivot arms. The pivot arms are located and configured so that the second deck can pivot relative to the first deck between a storage position and an extended position where the two decks are in substantially the same plane. The pivot arms are located and configured so that the upper surfaces of both decks are substantially parallel both in the storage position and the extended position. Preferably the forward wall of the first deck and the rear wall of the second deck are configured so the first deck supports the second deck in the extended position.