A transport device for a laboratory sample distribution system is presented. The transport device comprises a plurality of electro-magnetic actuators and a driving surface arranged above the actuators, in which the driving surface is configured to carry sample container carriers. The driving surface is tiled and comprises a plurality of driving surface modules with driving surface elements. Support elements arranged in a grid pattern are provided. Each driving surface module is detachably mounted to a subset of the support elements. A laboratory sample distribution system and to a laboratory automation system comprising a laboratory sample distribution system are also presented.