Height adjustable tables with electrical mechanism and remote control, or manually adjusted with a crank. Available in single (individual table) or double (front-to-front) formats. Their design is essentially characterized by the leg or side panel option. The adjustable tables allow the user to alternate the working position (standing and sitting) throughout the day. The programmable memories of the electric table make it possible to alternate up to 3 users per table, or to alternate between the previously programmed seated and standing positions.