The present invention relates to a cable tube (10) for furniture (18). The cable tube is composed of the combination of a foldable and extensible helical cylindrical spring (11), whose coils (13) are applied and constrained to a sleeve (12) made of flexible material, said tube (10) being provided at opposite ends with a ballasted base (15) for resting on the floor, and connection means (17) to said furniture (18).