Abstract: A method of fabricating a steel strip (1) including a) providing a functional relationship in a machine controller (8) between a slab casting speed (v) or the mass flow as a product of casting speed and strip thickness or as a product of strip speed and strip thickness and the strip temperature (t) downstream of the last rolling stand (7) for a different number (n) of active rolling stands (7) and different final thicknesses, b) determining or specifying the casting speed (v) or the mass flow (v×H) and feeding the determined value into the machine controller (8), and c) determining the optimum number of active rolling stands (7) and the final thicknesses and thickness reductions which can be rolled with them in the rolling train using the functional profiles.